X-ray diagnosis apparatus and x-ray imaging control method

Abstract

To control an X-ray diagnosis apparatus appropriately according to the user's requirements.SOLUTION: An X-ray diagnosis apparatus includes an imaging system, a display unit, a voice recognition unit, and a control unit. The imaging system includes an X-ray tube that generates an X-ray, an X-ray diaphragm that restricts an irradiation range of the X-ray, an X-ray detector that detects the X-ray, and a couch on which a subject is to be laid for irradiation with the X-ray. The display unit displays an X-ray image with numerical values indicating positions on the X-ray image generated by X-ray imaging of the subject by the imaging system. The voice recognition unit recognizes a numerical value corresponding to the voice based on the collected user's voice with respect to the numerical values. The control unit performs control of the imaging system in accordance with a position corresponding to the recognized numerical value among the numerical values.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The embodiments disclosed in this specification and the drawings relate to an X-ray diagnostic apparatus and an X-ray imaging control method. [Background technology]

[0002] In an X-ray diagnostic device, an operator checks a fluoroscopic image displayed on a monitor and adjusts the arrangement of the aperture blades and / or the arrangement of the bed, etc., via a console device. When a doctor is performing treatment on a subject, both hands are often occupied. For this reason, the doctor instructs a technician, who is the operator, on the opening of the aperture and the operation of the bed, etc. At this time, the doctor may have difficulty in correctly conveying the operation contents to the operator. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2003-225235 A Summary of the Invention [Problem to be solved by the invention]

[0004] One of the problems to be solved by the embodiments disclosed in this specification and the drawings is to appropriately control an X-ray diagnostic apparatus in accordance with the desires of a user. However, the problems to be solved by the embodiments disclosed in this specification and the drawings are not limited to the above problem. Problems corresponding to the effects of each configuration shown in the embodiments described later can also be positioned as other problems. [Means for solving the problem]

[0005] The X-ray diagnostic apparatus according to this embodiment includes an imaging system, a display unit, a voice recognition unit, and a control unit. The imaging system includes an X-ray tube that generates X-rays, an X-ray aperture that narrows the irradiation range of the X-rays, an X-ray detection unit that detects the X-rays, and a bed on which a subject to be irradiated with the X-rays is placed. The display unit displays a plurality of numerical values ​​indicating positions in an X-ray image generated by X-ray photography of the subject by the imaging system together with the X-ray image. The voice recognition unit recognizes a numerical value corresponding to the voice based on a user's voice collected in relation to the numerical values. The control unit controls the imaging system according to a position corresponding to the recognized numerical value among the plurality of numerical values. [Brief description of the drawings]

[0006] [Figure 1] FIG. 1 is a diagram showing an example of the appearance of an X-ray diagnostic apparatus according to an embodiment. [Diagram 2] FIG. 2 is a diagram showing an example of the configuration of an X-ray diagnostic apparatus according to an embodiment. [Diagram 3] FIG. 3 is a flowchart illustrating an example of a procedure of a voice movement control process according to the embodiment. [Figure 4] FIG. 4 is a diagram showing an example of an outline of a procedure of an audio movement control process according to the embodiment. [Diagram 5] FIG. 5 is a diagram showing an example in which a numerical value and a scale indicating a current position of an aperture blade are displayed together with an X-ray image, a plurality of numerical values, and a plurality of scales in the embodiment. [Figure 6] FIG. 6 is a diagram showing an example in which scale lines (guidelines) corresponding to the scales are displayed together with an X-ray image, a plurality of numerical values, and a plurality of scales according to the embodiment. [Figure 7] FIG. 7 is a diagram showing an example in which a plurality of numerical values ​​and a plurality of scales corresponding to an activation word are displayed outside the image area of ​​an X-ray image according to the embodiment. [Figure 8] FIG. 8 is a diagram illustrating an example of an outline of a procedure of an audio movement control process according to a first modified example of the embodiment. [Figure 9] FIG. 9 is a diagram illustrating an example of an outline of a procedure of an audio movement control process according to a second modified example of the embodiment. [Figure 10] FIG. 10 is a diagram illustrating an example of an outline of a procedure of an audio movement control process according to a third modified example of the embodiment. [Figure 11] FIG. 11 is a diagram illustrating an example of an outline of a procedure of an audio movement control process according to a fourth modified example of the embodiment. [Figure 12] FIG. 12 is a diagram illustrating an example of an outline of a procedure of an audio movement control process according to a fifth modified example of the embodiment. [Figure 13] FIG. 13 is a flowchart showing an example of a procedure of audio image processing according to a seventh modified example of the embodiment. [Figure 14] FIG. 14 is a diagram showing an example of a display before and after a user speaks "aperture left 15" as a movement instruction word according to a third application example of the embodiment. [Figure 15] FIG. 15 is a view showing an example in which a numerical value recognized by a voice recognition function is highlighted in accordance with a fourth application example of the embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0007] Hereinafter, an embodiment of an X-ray diagnostic apparatus and an X-ray photography control method will be described with reference to the drawings. In the following embodiments, parts with the same reference numerals perform the same operation, and duplicated descriptions will be omitted as appropriate. In addition, in the following, an X-ray diagnostic apparatus for performing examinations and treatments of the digestive tract, urinary system, orthopedics, IVR (Interventional Radiology), etc. will be described as an example of the X-ray diagnostic apparatus according to the present application. However, the embodiments according to the present application are not limited to this.

[0008] (Embodiment) An example of an X-ray diagnostic apparatus 100 according to the embodiment will be described with reference to FIG. 1. FIG. 1 is a diagram showing an example of the appearance of the X-ray diagnostic apparatus 100 according to the embodiment. As shown in FIG. 1, the X-ray diagnostic apparatus 100 according to the embodiment includes an imaging apparatus (which may be called an imaging system, an imaging system, or an imaging apparatus) 110, a close-up operation console 120 including a fluoroscopy monitor 121, a remote operation console 130 including an image processing apparatus 131, a system monitor 133, a fluoroscopy monitor 135, and a microphone 150, which are connected to each other regardless of whether they are wireless or wired. The imaging apparatus 110 includes an X-ray tube 1a that generates X-rays, an X-ray aperture 1b that narrows down the irradiation range of the X-rays, an X-ray detection unit (also called an X-ray detector) 3 that detects X-rays, and a bed 5 on which a subject P to be irradiated with X-rays is placed. Hereinafter, for the sake of specificity, the microphone 150 will be described as being provided in the imaging apparatus 110.

[0009] For example, an operator such as a technician outside an examination room, such as an operation room, operates the remote control console 130 to cause the imaging device 110 to perform operations such as raising or lowering the bed 5 on which a patient (subject) is placed, and moving the imaging system such as the X-ray tube 1a and the X-ray movable diaphragm 1b up and down, while simultaneously performing fluoroscopy and imaging. The operator then observes the fluoroscopy image displayed on the fluoroscopy monitor 135 provided on the remote control console 130, and the imaging image and fluoroscopy image displayed on the system monitor 133. Also, for example, an operator in an examination room operates the proximity control console 120 installed in the examination room to cause the imaging device 110 to perform the same processing as the above-mentioned processing, and observes the fluoroscopy monitor 121 provided on the proximity control console 120 and various images displayed on the examination room monitor.

[0010] The remote control console 130 and the close-proximity control console 120 correspond to, for example, a console device. As shown in FIG. 1, the console device (the remote control console 130 and the close-proximity control console 120) has an input device 137 such as various buttons and various levers related to control of the imaging device 110, and an output device such as various monitors. The output device corresponds to, for example, displays such as the above-mentioned system monitor 133, fluoroscopy monitor 135, and fluoroscopy monitor 121. The input device 137 corresponds to various input interfaces. The input device 137 will be described later. For the sake of concreteness, the console device connected to the imaging device 110 will be described as the remote control console 130.

[0011] 2 is a diagram showing an example of the configuration of an X-ray diagnostic apparatus 100 according to this embodiment. The X-ray diagnostic apparatus 100 has an imaging device 110, a console device 130, and a microphone 150. The imaging device 110 has an X-ray generator 1, a high-voltage generator 2, an X-ray detector 3, a holding arm 4, a bed 5, and a mechanism controller 7. The imaging device 110 and the console device 130 may be collectively referred to as an X-ray diagnostic system.

[0012] The X-ray generating unit 1 generates X-rays. The X-ray generating unit 1 includes, for example, an X-ray tube 1a and an X-ray aperture 1b. The X-ray generating unit 1 may be referred to as an X-ray generating device. The X-ray tube 1a is a vacuum tube that generates X-rays by irradiating thermoelectrons from a cathode (filament) to an anode (target) by application of a high voltage from the high voltage generating unit 2 and supply of a filament current. X-rays are generated by the thermoelectrons colliding with the target. The X-ray tube 1a includes, for example, a rotating anode type X-ray tube that generates X-rays by irradiating a rotating anode with thermoelectrons. Note that the type of the X-ray tube 1a is not limited to the rotating anode type, and any type of X-ray tube can be applied.

[0013] The X-ray aperture 1b shapes the irradiation field of the X-ray tube 1a. The X-ray aperture 1b is provided in front of the X-ray radiation window in the X-ray tube 1a. The X-ray aperture 1b has a plurality of aperture blades. For example, the X-ray aperture 1b has two aperture blades facing each other as a plurality of aperture blades. Specifically, the X-ray aperture 1b has four aperture blades made of a metal plate such as lead. Each of the four aperture blades is driven by a driving device (not shown) according to a region of interest input by an operator via an input interface 141 or the like. The X-ray aperture 1b adjusts the region where the X-ray is shielded to an arbitrary size by sliding these aperture blades by the driving device. The X-ray aperture 1b shields the X-rays outside the opening region by the adjusted aperture blades. As a result, the X-ray aperture 1b narrows down the X-rays generated by the X-ray tube 1a so that the region of interest of the subject P is irradiated.

[0014] The high voltage generating unit 2 has electric circuits such as a transformer and a rectifier, and an X-ray control device. The high voltage generating unit 2 has a function of generating a high voltage to be applied to the X-ray tube 1a and a filament current to be supplied to the X-ray tube 1a. The high voltage generating unit 2 may be called a high voltage generator. The X-ray control device controls the output voltage according to the X-rays irradiated by the X-ray tube 1a. The high voltage generating unit 2 may be of a transformer type or an inverter type. The high voltage generating unit 2 may be provided on the holding arm 4.

[0015] The X-ray detection unit 3 detects X-rays generated by the X-ray tube 1a. The X-ray detection unit 3 has, for example, a planar detector 3a equivalent to an X-ray detector, an image data generation unit 3b, and a gate driver 3c. The planar detector 3a is realized, for example, by a flat panel detector (hereinafter referred to as FPD). The FPD has a plurality of semiconductor detection elements. There are two types of semiconductor detection elements: a direct conversion type that directly converts X-rays into an electrical signal, and an indirect conversion type that converts X-rays into light using a phosphor and then converts the light into an electrical signal. Either type may be used for the FPD. The electrical signal generated by the FPD is output to the image data generation unit 3b.

[0016] The image data generating unit 3b is composed of a charge-voltage converter 3b-1, an A / D (Analog to Digital) converter 3b-2, and a parallel-serial converter 3b-3. The charge-voltage converter 3b-1 converts the electric signal output from the flat panel detector 3a into a voltage signal and outputs it to the A / D converter 3b-2. Under the control of the system control unit 11, the A / D converter 3b-2 converts the electric signal converted into a voltage signal into X-ray image data as digital data and outputs it to the parallel-serial converter 3b-3. Under the control of the system control unit 11, the parallel-serial converter 3b-3 converts the A / D converted X-ray image data from parallel data to serial data and outputs it to the image storage circuit 9. The image data generating unit 3b may be called an image data generating device.

[0017] Under the control of the system control unit 11, the gate driver 3c drives the detection elements of the flat panel detector 3a.

[0018] The holding arm 4 movably holds the X-ray tube 1a that generates X-rays and the flat panel detector 3a that faces the X-ray tube 1a and detects X-rays. In other words, the X-ray tube 1a and the flat panel detector 3a are attached to the end of the holding arm 4 facing each other. The holding arm 4 rotatably supports the X-ray aperture 1b and the flat panel detector 3a with a straight line connecting the focal point where X-rays are generated in the X-ray tube 1a and the center of the flat panel detector 3a as a rotation axis. The holding arm 4 rotates the X-ray aperture 1b and the flat panel detector 3a around the rotation axis by the operation of the holding arm moving mechanism. Note that the holding arm 4 may hold the X-ray generation unit 1 and the X-ray detection unit 3 so that, for example, a source image distance (hereinafter referred to as SID) can be changed.

[0019] The bed 5 has a top plate and a base. The subject P is placed on the top plate. The base supports the top plate so that it can move in parallel along, for example, the long axis direction of the top plate, the short axis direction of the top plate, and the vertical direction. The base also supports the top plate so that it can rotate around the short axis direction of the top plate, the long axis direction of the top plate, and the vertical direction as rotation axes.

[0020] The mechanical section (not shown, which may be referred to as a mechanical device) has a holding arm moving mechanism and a bed moving mechanism. The holding arm moving mechanism and the bed moving mechanism are realized by, for example, a motor or an actuator. The holding arm moving mechanism moves the holding arm 4 to a position instructed by an operator or set in advance under the control of the mechanism control section 7. The bed moving mechanism moves the top plate of the bed 5 to a position instructed by an operator or set in advance under the control of the mechanism control section 7.

[0021] The mechanism control unit 7 controls the mechanism unit under the control of the system control unit 11. For example, the mechanism control unit 7 controls the movement operation of the holding arm movement mechanism and the movement operation of the bed movement mechanism based on an input operation received from an operator via the input interface 141. Specifically, the mechanism control unit 7 reads out a mechanism control program stored in a storage, expands it on a memory in a processor in the mechanism control unit 7, and controls the movement operation of the holding arm movement mechanism and the movement operation of the bed movement mechanism according to the expanded mechanism control program. The mechanism control unit 7 may be referred to as a processing circuit (mechanism control circuit) that controls the mechanism device.

[0022] The microphone 150 collects the voice of the user. The user is, for example, a doctor who performs various treatments on the subject P. The microphone 150 is realized by a microphone composed of electronic components that convert sound into an electric signal. The microphone 150 outputs the collected voice to the remote control console 130. As shown in FIG. 1 and FIG. 2, the microphone 150 has been described as being mounted on the imaging device 110, but the position of the microphone 150 is not limited to this. In other words, as long as the microphone 150 can collect the user's voice, it may be provided on the ceiling and / or wall of the examination room or on the near control console 120.

[0023] The image processing device 131 includes an image storage circuit 9, a system control unit 11, a memory 143, and a processing circuit 145. The image storage circuit 9 is composed of a hard disk drive (HDD: Hard Disk Drive), a semiconductor memory, etc. The image storage circuit 9 stores the X-ray image data output from the image data generation unit 3b.

[0024] The system control unit 11 controls the X-ray generation unit 1, the high voltage generation unit 2, the gate driver 3c, the A / D converter 3b-2, the parallel-serial converter 3b-3, the mechanism control unit 7, the image storage circuit 9, the display unit 10, etc., based on input operations received from an operator via the input interface 141. Specifically, the system control unit 11 reads out a system control program, loads it on its own memory, and controls each unit of the X-ray diagnostic apparatus 100 according to the loaded control program. For example, the system control unit 11 performs amplification processing, image calculation processing, etc. on the X-ray image data stored in the image storage circuit 9 to generate an X-ray image to be displayed.

[0025] Furthermore, the system control unit 11 outputs the X-ray image stored in the image storage circuit 9 to the display image memory 10a of the display unit 10 in response to an instruction from the operator to display an image, etc. The system control unit 11 also outputs an electrical signal corresponding to the sound output from the microphone 150 to the processing circuit 145. Note that the electrical signal corresponding to the sound may be output directly to the processing circuit 145 without going through the system control unit 11. The system control unit 11 is realized, for example, by a processing circuit (which may be referred to as a system control circuit) that controls each unit of the X-ray diagnostic apparatus 100. The system control unit 11 may also be simply referred to as a control unit.

[0026] Specifically, the system control unit 11 sets a region of interest (ROI) for the X-ray image by the setting function 111 according to an instruction from the operator via the input interface 141. The system control unit (system control circuit) 11 that realizes the setting function 111 corresponds to the setting unit. Also, the system control unit 11 executes image processing for the entire X-ray image or the ROI by the image processing function 113 according to an instruction from the operator via the input interface 141. For example, a program (image processing program) that executes the image processing is stored in the memory 143. At this time, the image processing function 113 executes the image processing by reading the image processing program from the memory 143, expanding it in the memory in the system control unit 11, and executing it. The system control unit (system control circuit) 11 that realizes the image processing function 113 corresponds to an image processing unit. Since the image processing can be performed by known methods, a description thereof will be omitted. Note that various image processes are not limited to being executed by the system control unit 11, and may be executed by a separately provided image processing circuit or processing circuit 145 (not shown).

[0027] The display unit 10 includes a display image memory 10a, a D / A (Digital to Analog) converter 10b, a display control unit 10c, and a monitor 10d. The display image memory 10a stores image data output from the image storage circuit 9 and outputs the image data to the D / A converter 10b. The D / A converter 10b converts the image data output from the display image memory 10a into an analog signal and outputs the analog signal to the display circuit 10c. The display circuit 10c displays an X-ray image based on the image data output from the D / A converter 10b on the monitor 10d.

[0028] The display unit 10 can be realized as a display and / or various monitors. That is, the display unit 10 corresponds to, for example, the fluoroscopy monitor 121, the system monitor 133, the fluoroscopy monitor 135, and the like in FIG. 1. In this case, as the display, for example, a liquid crystal display (LCD), a cathode ray tube (CRT) display, an organic electroluminescence display (OELD), a plasma display, or any other arbitrary display can be appropriately used. In addition, the display may be a desktop type, or may be configured as a tablet terminal or the like capable of wireless communication with the system control unit 11 and the image storage circuit 9. In addition, when the monitor 10d displays an X-ray image as digital data, the D / A converter 10b is not necessary.

[0029] The input interface 141 accepts various input operations from the operator, converts the accepted input operations into electrical signals, and outputs the electrical signals to the system control unit 11. The input interface 141 accepts from the operator operations for operating at least one of the holding arm 4 and the bed 5, X-ray conditions related to X-ray generation, conditions related to image processing, operations of the four aperture blades, and the like. As the input interface 141, for example, a mouse, a keyboard, a trackball, a switch, a button, a joystick, a foot switch, a touch pad, a touch panel display, and the like can be appropriately used. The input interface 141 corresponds to the input device 137 in FIG. 1.

[0030] In this embodiment, the input interface 141 is not limited to one having physical operation parts such as a mouse, a keyboard, a trackball, a switch, a button, a joystick, a touchpad, and a touch panel display. For example, an example of the input interface 141 includes an electrical signal processing circuit that receives an electrical signal corresponding to an input operation from an external input device provided separately from the device and outputs the electrical signal to the system control unit 11. The input interface 141 may be configured as a tablet terminal or the like that can wirelessly communicate with the system control unit 11.

[0031] The memory 143 stores a program (voice recognition program) for implementing the voice recognition function 151. The memory 143 stores a program (calculation program) for implementing the movement amount calculation function 153. The voice recognition program is a program that recognizes the voice uttered (spoken) by the user, using an electrical signal corresponding to the user's voice output from the microphone 150. For example, the voice recognition program recognizes a numerical value corresponding to the user's voice, based on the user's voice collected by the microphone 150. As a voice recognition program, a known application related to voice recognition can be used, and therefore a description thereof will be omitted.

[0032] The calculation program is a program that calculates the amount of movement of at least one of the multiple devices in the imaging system based on the recognized numerical value and the current positions of the multiple devices in the imaging system. The processing content of the calculation program will be described later in relation to the movement amount calculation function 153. The processing realized by executing the voice recognition program and the calculation program is processing related to control of the movement of various devices in the imaging system, and may be referred to as voice movement control processing. The voice movement control processing will be described later.

[0033] The memory 143 stores position information of various members in the imaging device 110 when X-ray imaging is performed on the subject P. The position information of various members is, for example, the positions of a plurality of aperture blades in the X-ray aperture 1b, the position of the bed 5 relative to the X-ray tube 1a, etc. The position information is updated in response to X-ray imaging, for example, every time a fluoroscopic image is generated.

[0034] The memory 143 is realized by, for example, a storage device such as an HDD or SSD (Solid State Drive) that stores various information, an integrated circuit storage device, etc. The memory 41 may be realized by a drive device that reads and writes various information between the memory device and a portable storage medium such as a CD (Compact Disc), a DVD (Digital Versatile Disc), or a flash memory, or a semiconductor memory element such as a RAM (Random Access Memory), in addition to an HDD or SSD.

[0035] The processing circuit 145 executes a voice recognition function 151 and a movement amount calculation function 153 to calculate a movement amount related to a voice movement control process for the image capturing device 110. When an electrical signal corresponding to a voice is received from the microphone 150, the processing circuit 145 executes a voice recognition process on the electrical signal by the voice recognition function 151, and generates a result of the voice recognition process (hereinafter, referred to as a recognition result). The processing circuit 145 that realizes the voice recognition function 151 corresponds to a voice recognition unit. Moreover, the processing circuit 145 that realizes the movement amount calculation function 153 corresponds to a movement amount calculation unit.

[0036] In the following, for the sake of concrete explanation, it is assumed that the control target by the voice movement control process is at least one aperture blade in the X-ray aperture diaphragm 1b. At this time, the user utters, for example, "aperture voice operation". "Aperture voice operation" corresponds to the activation word that activates the voice movement control process. Note that the activation word of the voice movement control process is not limited to the above-mentioned "aperture voice operation", and may be other utterances as long as the voice has the intention of operating the aperture with a voice such as "voice operation, aperture". In addition, the other voice may be, for example, a word related to a word used when a doctor instructs a technician to operate the aperture. The microphone 150 collects the voice and outputs an electrical signal corresponding to the collected voice to the remote control console 130. The voice recognition function 151 recognizes that the control target by the voice movement control process is the aperture based on the user's voice. The voice recognition function 151 outputs a recognition result indicating that the control target is the aperture (hereinafter referred to as aperture control instruction) to the system control unit 11.

[0037] The control target of the voice movement control process is not limited to the aperture blades. For example, if the control target of the voice movement control process is the bed 5, the activation word may be "bed voice operation". The case where the control target of the voice movement control process is other than the aperture blades will be described later in the modified example.

[0038] Upon receiving the aperture control instruction, the system control unit 11 causes the display unit 10 to display a plurality of numerical values ​​indicating positions in an X-ray image generated by X-ray imaging of the subject P by the imaging device 110 together with the X-ray image. That is, in response to receiving the aperture control instruction, the display unit 10 displays a plurality of numerical values ​​indicating positions together with the X-ray image. At this time, the display unit 10 may further display a plurality of scales respectively corresponding to the plurality of numerical values.

[0039] After uttering "aperture voice operation", the user utters the arrangement of the aperture blades to be moved and a numerical value indicating the coordinates of the aperture blades to be moved. The arrangement of the aperture blades to be moved is the arrangement of the aperture blades corresponding to the top, bottom, left and right in the X-ray image displayed on the display unit 10. The numerical value indicating the coordinates of the aperture blades to be moved corresponds to the numerical value (coordinate value) displayed on the display unit 10. For example, the coordinates of the destination correspond to a position in a coordinate system provided for the X-ray image displayed on the display unit 10. The origin of the coordinate system is set, for example, to the upper left end of the displayed X-ray image. Note that the origin of the coordinate system can be set arbitrarily. The coordinate system is associated with position information of various members in the imaging device 110 and stored in the memory 143. That is, the correspondence between the position information and the coordinate system is associated as, for example, a correspondence table (hereinafter referred to as a position coordinate correspondence table) and stored in the memory 143.

[0040] For example, when moving the left aperture blade to a position of the numerical value 15 with respect to the X-ray image, the arrangement of the aperture blade to be moved and the numerical value indicating the coordinate of the aperture blade to be moved to are uttered, for example, as "aperture left, 15". This utterance means that the left aperture blade to be moved to the coordinate indicating "15" displayed together with the X-ray image. Note that the utterance of the arrangement of the aperture blade to be moved and the numerical value indicating the coordinate of the aperture blade to be moved to is not limited to the above "aperture left, 15" and may be another utterance such as "15, aperture left".

[0041] The microphone 150 collects the user's voice (hereinafter referred to as a movement instruction word) related to the arrangement of the aperture blade to be moved and a numerical value indicating the coordinate of the aperture blade to be moved, and outputs an electric signal corresponding to the collected movement instruction word to the remote control console 130. The voice recognition function 151 recognizes, for example, one of two opposing aperture blades based on the user's voice, i.e., the movement instruction word. Specifically, the voice recognition function 151 recognizes the arrangement of the aperture blade to be controlled by the voice movement control process and a numerical value indicating the coordinate of the aperture blade to be moved, based on the user's movement instruction word. The voice recognition function 151 outputs a recognition result (hereinafter referred to as an aperture movement instruction) indicating information specifying the aperture blade to be moved and the coordinate of the destination to the movement amount calculation function 153.

[0042] The processing circuit 145 calculates the amount of movement of the object to be moved based on the aperture movement instruction by the movement amount calculation function 153. For example, the movement amount calculation function 153 acquires the current position information of the aperture blade to be moved and the position coordinate correspondence table from the memory 143, and calculates the amount of movement of the object to be moved by using the current position information, the position coordinate correspondence table, and the coordinates of the destination. The movement amount calculation function 153 outputs the calculated amount of movement to the system control unit 11. At this time, the system control unit 11 moves the object to be moved (for example, the aperture blade) according to the calculated amount of movement.

[0043] That is, the system control unit 11 controls the imaging device 110 according to a position (the coordinates of the movement target) corresponding to a recognized numerical value among a plurality of numerical values ​​displayed on the display unit 10 together with the X-ray image. For example, the system control unit 11 controls the X-ray aperture 1b so as to move at least one of a plurality of aperture blades to a position corresponding to the recognized numerical value. Specifically, the system control unit 11 controls the X-ray aperture 1b so as to move one of two opposing aperture blades to a position corresponding to the recognized numerical value.

[0044] The processing circuits realizing the mechanism control unit 7, the system control unit 11, etc., and the processing circuit 145 have, as hardware resources, processors such as a CPU (Central Processing Unit), an MPU (Micro Processing Unit), a GPU (Graphics Processing Unit), etc., and memories such as a ROM (Read Only Memory), a RAM (Random Access Memory), etc. In addition, the processing circuits may be realized by processors such as an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), other Complex Programmable Logic Devices (CPLD), and Simple Programmable Logic Devices (SPLD).

[0045] Various functions executed by the processor are stored in a memory (not shown) in the form of programs executable by a computer. The processor realizes the function corresponding to each program by reading the programs from the memory and executing them. In other words, each circuit that has read each program has the function corresponding to the read program.

[0046] The overall configuration of the X-ray diagnostic device 100 according to the embodiment has been described above. With this configuration, the X-ray diagnostic device 100 according to the embodiment displays numerical values ​​and scales of a coordinate system together with an X-ray image in response to an activation word uttered by a user, and executes a voice movement control process for moving an imaging system in response to an utterance by a user regarding an aperture movement instruction. The procedure of the voice movement control process will be described below with reference to Figs. 3 to 7.

[0047] Fig. 3 is a flowchart showing an example of the procedure of the voice movement control process. As described above, the voice movement control process in this embodiment will be described by taking the aperture blade as an example of the control target. Fig. 4 is a diagram showing an example of the outline of the procedure of the voice movement control process.

[0048] (Audio movement control processing) (Step S301) The imaging device 110 generates an X-ray image XI by irradiating an object P with X-rays. Position information of the aperture blades at the time of X-ray irradiation is stored as current position information of the aperture blades in the memory 143. The display unit 10 displays the X-ray image XI.

[0049] (Step S302) If the user UR utters an activation word SUW such as "voice control of the squeeze" (Yes in step S302), the microphone 150 collects a voice corresponding to the activation word SUW. The microphone 150 converts the collected voice into an electrical signal and outputs it to the remote control console 130. Then, the process of step S303 is executed. If the user UR does not utter the activation word SUW (No in step S302), the process of step S310 is executed.

[0050] (Step S303) The processing circuit 145 recognizes the activation word SUW by the voice recognition function 151. As a result, the voice recognition function 151 specifies a control target in the voice movement control process. In response to the recognition of the activation word SUW, the system control unit 11 causes the display unit 10 to display a plurality of numerical values ​​NV indicating a position in the X-ray image XI together with the X-ray image XI. That is, after the activation word SUW is uttered, the display unit 10 displays a plurality of numerical values ​​NV indicating a position (coordinates indicating a position to which the aperture blade can move) in the X-ray image XI generated by X-ray photography of the subject P by the imaging system 110 together with the X-ray image XI. At this time, the display unit 10 may further display a plurality of scales SC corresponding to the plurality of numerical values ​​NV. In the example shown in FIG. 4, the numerical values ​​NV and the scales SC are displayed vertically and horizontally on the X-ray image XI in response to the utterance of the activation word SUW.

[0051] The display of the numerical value NV and the scale SC according to the activation word is not limited to the example shown in FIG. 4. For example, as shown in FIG. 5, the display unit 10 may display a numerical value CP indicating the current position of the diaphragm blade and a scale corresponding to the numerical value CP together with the X-ray image XI, the numerical value NV, and the scale SC. The hatching SR in FIG. 5 corresponds to an area (shielding area) where X-rays are blocked by the X-ray diaphragm. Also, as shown in FIG. 6, the display unit 10 may display a scale line (guideline) GL corresponding to the scale together with the X-ray image XI, the numerical value NV, and the scale SC. Also, as shown in FIG. 7, the display unit 10 may display the numerical value NV and the scale SC according to the activation word outside the X-ray image XI (image area).

[0052] (Step S304) If the user UR's voice (movement instruction words) MIW is collected with respect to the numerical value NV displayed on the display unit 10 (Yes in step S304), the process of step S305 is executed. If the user UR's voice (movement instruction words) MIW is not collected with respect to the numerical value NV displayed on the display unit 10 (No in step S304), the process of step S308 is executed. Note that the numerical value to be collected is not limited to the numerical value NV displayed on the display unit 10, and may be a value between the numerical values ​​NV displayed on the display unit 10.

[0053] (Step S305) The processing circuit 145 uses the voice recognition function 151 to recognize a numerical value corresponding to the voice of the user UR based on the voice of the user UR collected in relation to the numerical value by the microphone 150. Specifically, the voice recognition function 151 generates an aperture movement instruction, which is a recognition result indicating the aperture blade to be moved and the coordinates of the movement destination, by performing a voice recognition process on an electrical signal corresponding to the voice of the user UR.

[0054] As shown in FIG. 4, the user utters "aperture left 15" as a voice. Therefore, the content of the aperture movement instruction is to move the left aperture blade to the position where the scale is 15 with respect to the X-ray image XI. That is, the coordinate of the destination of the left aperture blade is 15. Note that, when the collected numerical value is a value between the numerical values ​​NV displayed on the display unit 10, that is, a numerical value that does not correspond to the multiple scales SC, the voice recognition function 151 may recognize the numerical value that does not correspond to the multiple scales displayed on the display unit 10 based on the user's voice collected by the microphone 150. That is, in the display example shown in FIG. 4, the numerical values ​​NV are shown as 10, 20, and 30, but the voice recognition function 151 can also recognize numerical values ​​between these numbers. The voice recognition function 151 outputs the aperture movement instruction to the movement amount calculation function 153.

[0055] (Step S306) The processing circuit 145 calculates the movement amount of the diaphragm blade to be moved based on the diaphragm movement instruction including the recognized numerical value by the movement amount calculation function 153. For example, the movement amount calculation function 153 reads out the current position information of the diaphragm blade to be moved and the position coordinate correspondence table from the memory 143. In the example of FIG. 4, the movement amount calculation function 153 calculates the movement amount for moving the left diaphragm blade using the current position information of the left diaphragm blade, the position coordinate correspondence table, and the destination coordinate (15). That is, the movement amount calculation function 153 calculates the movement amount of the diaphragm blade to be moved based on the diaphragm movement instruction, the current position information of the diaphragm blade to be moved, and the position coordinate correspondence table. The movement amount calculation function 153 outputs the movement amount of the diaphragm blade to be moved to the system control unit 11.

[0056] (Step S307) The system control unit 11 controls the imaging device 110 according to the calculated movement amount for the moving object. In the example shown in Fig. 4, the system control unit 11 controls the X-ray aperture 1b so as to move the left aperture blade to a position where the scale number in the X-ray image XI is 15. In the example shown in Fig. 4, the area of ​​the aperture blade that has been moved in the X-ray image XI is shown by hatching. That is, the hatching SR in Fig. 4 corresponds to the area where X-rays are blocked by the X-ray aperture (blocking area). As a result, when the user utters a number, the aperture blade is placed at a position on the monitor 10d that corresponds to the specified number.

[0057] (Step S308) The system control unit 11 determines whether a predetermined time has passed since the multiple numerical values ​​NV were displayed on the display unit 10. The system control unit 11 also determines whether a predetermined time has passed after controlling the image capturing device 110. The predetermined time can be set arbitrarily, for example, from several seconds to a dozen seconds, and is set in advance and stored in the memory 143. If the predetermined time has passed since the multiple numerical values ​​NV were displayed on the display unit 10 (Yes in step S308), the process of step S309 is executed. If the predetermined time has not passed since the multiple numerical values ​​NV were displayed on the display unit 10 (No in step S308), the process of step S304 and subsequent steps is repeated.

[0058] (Step S309) The system control unit 11 hides the multiple scales SC and multiple numerical values ​​NV displayed together with the X-ray image XI. That is, the display unit 10 displays only the X-ray image XI under the control of the system control unit 11. After this step, the processes from step S301 onwards are repeated. Specifically, when a predetermined time has elapsed since the multiple numerical values ​​were displayed on the display unit 10, or when the movement of the moving object is completed, the system control unit 11 hides the multiple numerical values ​​NV and the scales SC on the display unit 10. That is, when a preset time has elapsed with the scales SC and numerical values ​​NV displayed on the image, the scales SC and numerical values ​​NV on the image are hidden. For example, in the example shown in FIG. 4, when the left diaphragm blade moves to the position of 15 on the scale SC in the X-ray image XI and a predetermined time has elapsed, the system control unit 11 controls the display unit 10 to hide the scales SC and numerical values ​​NV in the X-ray image XI.

[0059] (Step S310) If X-ray photography of the subject P is completed (Yes in step S310), the voice movement control process ends. If X-ray photography of the subject P is not completed (No in step S310), the processes from step S301 onwards are repeated. The end of X-ray photography is input by a user's instruction via the input interface 141, for example.

[0060] The X-ray diagnostic apparatus 100 according to the embodiment described above displays, together with the X-ray image XI, a number of numerical values ​​NV indicating a position in the X-ray image XI generated by X-ray photography of a subject P using an imaging system 110 having an X-ray tube 1a, an X-ray aperture 1b, an X-ray detection unit 3, and a bed 5, recognizes a numerical value corresponding to the voice of a user UR collected in relation to the numerical values, and controls the imaging system 110 according to the position (amount of movement) corresponding to the recognized numerical value among the number of numerical values ​​NV.

[0061] For example, the X-ray aperture 1b in the X-ray diagnostic device 100 according to the embodiment has a plurality of aperture blades, and the X-ray diagnostic device 100 according to the embodiment controls the X-ray aperture 1b so as to asymmetrically move at least one of the plurality of aperture blades to a position corresponding to the recognized numerical value. Specifically, the X-ray aperture 1b in the X-ray diagnostic device 100 according to the embodiment has two aperture blades facing each other as the plurality of aperture blades, and the X-ray diagnostic device 100 according to the embodiment recognizes one of the two aperture blades based on the voice of the user UR, and controls the X-ray aperture 1b so as to move the one aperture blade to a position corresponding to the recognized numerical value.

[0062] As a result, the X-ray diagnostic apparatus 100 according to the embodiment can smoothly operate a moving object, such as an aperture blade, to a position intended by a user UR, such as a doctor, who is treating the subject P. Therefore, the X-ray diagnostic apparatus 100 according to the embodiment can narrow the irradiation range to the limit while leaving the minimum necessary region of interest for the user UR, such as a doctor, and therefore can reduce the radiation exposure to the subject P.

[0063] Moreover, the X-ray aperture 1b in the X-ray diagnostic device 100 according to the embodiment has two opposing aperture blades as the multiple aperture blades, and the X-ray diagnostic device 100 according to the embodiment further displays multiple scales SC corresponding to the multiple numerical values ​​NV, and a numerical value and scale corresponding to the current aperture blade position CP. As a result, according to the X-ray diagnostic device 100 according to the embodiment, the user UR can grasp the numerical value corresponding to the current aperture blade position at a glance, and can easily vocalize the destination position. In addition, according to the X-ray diagnostic device 100 according to the embodiment, the display of the multiple numerical values ​​NV and the multiple scales SC makes it easy to change and control the destination position, and the user UR can accurately move the object to a desired position. From these points, according to the X-ray diagnostic device 100 according to the embodiment, the display of the multiple numerical values ​​NV and the multiple scales SC improves the operability of moving the object to be moved by vocalization, and further reduces the number of adjustments of the movement of the object to be moved, thereby improving the throughput of the examination for the subject P.

[0064] Furthermore, the X-ray diagnostic apparatus 100 according to the embodiment hides the multiple numerical values ​​NV on the display unit 10 when a predetermined time has elapsed since the multiple numerical values ​​NV were displayed on the display unit 10. As a result, the X-ray diagnostic apparatus 100 according to the embodiment displays the scale SC and the numerical values ​​NV on the display unit 10 only during voice operation, thereby preventing the scale SC and the numerical values ​​NV from interfering with the user UR's observation of the X-ray image XI. Therefore, the X-ray diagnostic apparatus 100 according to the embodiment can improve the efficiency of the user UR's observation of the X-ray image XI.

[0065] Moreover, the X-ray diagnostic apparatus 100 according to the embodiment further displays a plurality of scales SC corresponding to the plurality of numerical values ​​NV, respectively, and recognizes numerical values ​​that do not correspond to the scales SC based on the voice of the user UR. As a result, the X-ray diagnostic apparatus 100 according to the embodiment allows a numerical value that is not displayed on the scale to be specified.

[0066] Moreover, the X-ray diagnostic apparatus 100 according to the embodiment further displays a plurality of scale marks SC corresponding to the plurality of numerical values ​​NV, and a plurality of scale lines GL corresponding to the plurality of scale marks SC. As a result, the X-ray diagnostic apparatus 100 according to the embodiment allows the user UR to grasp at a glance the numerical value corresponding to the destination position of the moving object, and improves the convenience of the user UR in speaking the numerical value.

[0067] Furthermore, the X-ray diagnostic apparatus 100 according to the embodiment displays a plurality of numerical values ​​NV outside the X-ray image XI. As a result, the X-ray diagnostic apparatus 100 according to the embodiment displays a plurality of numerical values ​​NV outside the X-ray image XI, and therefore it is possible to prevent the scale SC and the numerical values ​​NV from interfering with the observation of the X-ray image XI by the user UR. Therefore, the X-ray diagnostic apparatus 100 according to the embodiment can improve the efficiency of the observation of the X-ray image XI by the user UR.

[0068] As described above, the X-ray diagnostic apparatus 100 according to the embodiment allows the user UR, or doctor, to smoothly operate the imaging device 110 to a position intended by the doctor even if both hands are occupied.

[0069] (First Modification) In this modification, two opposing aperture blades are moved symmetrically by voice operation. That is, the control target of the voice movement control process in this modification is two opposing aperture blades in the X-ray aperture 1b. Fig. 8 is a diagram showing an example of an outline of the procedure of the voice movement control process according to this modification.

[0070] In this modified example, after uttering "aperture voice operation", the user UR utters the arrangement of the aperture blades to be moved and a numerical value indicating the coordinates of the aperture blades to be moved to. The arrangement of the aperture blades to be moved is an arrangement of a set of aperture blades corresponding to the top and bottom or the left and right in the X-ray image XI displayed on the display unit 10. The numerical value indicating the coordinates of the aperture blades to be moved to corresponds to the numerical value (coordinate value) displayed on the display unit 10 as in the embodiment.

[0071] For example, when moving the left blade of a pair of left and right blades to the value (10) and the right blade to the value 30 with respect to the X-ray image XI, the arrangement of the blades to be moved and the numerical value indicating the coordinate of the blade to be moved to are, for example, "aperture left and right, 10". This utterance means that the left blade with respect to the X-ray image XI is moved to the coordinate indicating "10" displayed together with the X-ray image XI, and the right blade with respect to the X-ray image XI is moved to the coordinate indicating "30" displayed together with the X-ray image XI. Note that the utterance of the arrangement of the blades to be moved and the numerical value indicating the coordinate of the blade to be moved to is not limited to the above "aperture left and right, 10" and may be another utterance such as "10, aperture left and right".

[0072] The microphone 150 collects the movement instruction word MIW and outputs an electrical signal corresponding to the collected movement instruction word MIW to the remote control console 130. The voice recognition function 151 recognizes two aperture blades based on the voice of the user UR, i.e., the movement instruction word MIW. Specifically, the voice recognition function 151 recognizes the arrangement of the aperture blades to be controlled by the voice movement control process and the numerical value indicating the coordinates of the aperture blade to be moved, based on the movement instruction word MIW of the user UR. The voice recognition function 151 outputs the aperture movement instruction to the movement amount calculation function 153.

[0073] The processing circuit 145 calculates the amount of movement of the moving object based on the aperture movement instruction by the movement amount calculation function 153. The calculation of the amount of movement by the movement amount calculation function 153 is the same as that of the embodiment, so the description will be omitted. At this time, the system control unit 11 moves the moving object (for example, two opposing aperture blades) according to the calculated movement amount. That is, the system control unit 11 controls the X-ray aperture 1b so as to symmetrically move the two aperture blades to a position corresponding to the recognized numerical value, as shown in FIG. 8. The hatching SR in FIG. 8 corresponds to the area (shielding area) where the X-ray is shielded by the X-ray aperture. The voice movement control process in this modification is the same as that of the embodiment, except that the voice of the user UR and the control object in step S304 in FIG. 3 are different from those of the embodiment, so the description of the voice movement control process will be omitted.

[0074] The X-ray aperture 1b in the X-ray diagnostic device 100 according to this modification has two aperture blades facing each other as a plurality of aperture blades, and the X-ray diagnostic device 100 according to this modification recognizes the two aperture blades based on the voice of the user UR, and controls the X-ray aperture 1b so as to symmetrically move the two aperture blades to positions corresponding to the recognized numerical values. As a result, according to the X-ray diagnostic device 100 according to the first modification, the two aperture blades facing each other can be easily and symmetrically moved according to the voice of the user UR, and the operability of the aperture operation can be improved. Other effects are the same as those of the embodiment, and therefore description thereof will be omitted.

[0075] (Second Modification) In this modification, a plurality of aperture blades are independently operated so as to move the center position of the X-ray irradiation range by voice operation. That is, in this modification, the movement of a plurality of aperture blades is controlled asymmetrically in order to move the center position in the X-ray image XI. In other words, in this modification, a plurality of aperture blades are independently moved in order to move the center position in the X-ray image XI. FIG. 9 is a diagram showing an example of an outline of the procedure of the voice movement control process according to this modification.

[0076] In this modified example, after uttering "aperture voice operation", the user UR utters the coordinates of the destination center position in the X-ray image XI (e.g., in the order of x coordinate and y coordinate). For example, as shown in FIG. 9, when the position coordinates (30, 30) in the X-ray image XI before the center position moving operation is set as the center position in the next X-ray shooting, the utterance indicating the coordinates of the center position is, for example, "center movement, 30, 30". Note that the utterance indicating the coordinates of the center position is not limited to the above "center movement, 30, 30", and may be another utterance such as "30, 30, center movement".

[0077] The microphone 150 collects the movement instruction words MIW and outputs an electrical signal corresponding to the collected movement instruction words MIW to the remote control console 130. The voice recognition function 151 recognizes a numerical value indicating the center position of the X-ray irradiation range based on the voice of the user UR, i.e., the movement instruction words MIW. The voice recognition function 151 narrows down the coordinates indicating the center position and outputs them to the movement amount calculation function 153 as a movement instruction.

[0078] The processing circuit 145 uses the movement amount calculation function 153 to calculate the movement amount for each of the multiple aperture blades based on the aperture movement instruction. The calculation of the movement amount by the movement amount calculation function 153 is the same as in the embodiment, so a description thereof will be omitted. At this time, the system control unit 11 moves the multiple aperture blades to be moved according to the calculated movement amount. That is, the system control unit 11 controls the X-ray aperture diaphragm 1b to move the multiple aperture blades independently (asymmetrically) so that the position corresponding to the recognized numerical value (coordinates of the center position) becomes the center position of the irradiation range, as shown in FIG. 9.

[0079] As shown in Fig. 9, in this modified example, the field of view position moves without changing the field of view size. In other words, the voice movement control process in this modified example corresponds to changing the center position in the X-ray image XI while maintaining the field of view size according to the voice (coordinates) of the user UR, that is, to shifting the X-ray irradiation range in parallel. The voice movement control process in this modified example is similar to the embodiment except that the voice of the user UR and the control target in step S304 in Fig. 3 are different from those in the embodiment, and therefore a description of the voice movement control process will be omitted.

[0080] The X-ray diagnostic device 100 according to this modification recognizes a numerical value indicating the center position of the X-ray irradiation range based on the voice of the user UR, and controls the X-ray aperture 1b to independently move the multiple aperture blades so that the position corresponding to the recognized numerical value becomes the center position of the irradiation range. As a result, the X-ray diagnostic device 100 according to the second modification can move the multiple aperture blades asymmetrically according to the voice of the user UR so as to change the center position in the X-ray image XI while maintaining the field of view size. That is, the X-ray diagnostic device 100 according to the second modification can operate the multiple aperture blades by inputting coordinates by voice so that the position of the coordinates becomes the image center. In other words, the X-ray diagnostic device 100 according to the second modification can operate the field of view position without changing the field of view size. Other effects are similar to those of the embodiment and the first modification, so a description thereof will be omitted.

[0081] (Third Modification) In this modified example, instead of absolute values, relative values ​​are used to specify numerical values ​​by voice, with the current position of the control target (e.g., the aperture blades) being set to 0. That is, in this modified example, the voice by the user UR is a word indicating a relative value, unlike the embodiment. A plus (+) or minus (-) is added to the relative value. A plus sign indicates, for example, the right direction with respect to the X-ray image XI. A minus sign indicates, for example, the left direction with respect to the X-ray image XI. Therefore, the relative value corresponds to the amount of movement of the aperture on the X-ray image XI. FIG. 10 is a diagram showing an example of an outline of the procedure of the voice movement control processing according to this modified example.

[0082] In this modified example, after uttering "aperture voice operation", the user UR utters the arrangement of the aperture blades to be moved and a numerical value (relative value) indicating the relative position of the destination aperture blade. The arrangement of the aperture blades to be moved is the arrangement of the aperture blades corresponding to the top, bottom, left, and right in the X-ray image displayed on the display unit 10. Furthermore, the numerical value indicating the relative position of the destination aperture blade is a relative value with respect to the numerical value (coordinate value) displayed on the display unit 10. Therefore, the coordinates of the destination correspond to the value obtained by adding or subtracting the relative value from the position of the current control target (e.g., aperture blade).

[0083] For example, when the left blade of a pair of left and right blades is moved by 5 relatively to the right with respect to the X-ray image XI, the arrangement of the blade to be moved and the relative value are uttered, for example, as shown in FIG. 10, as shown in FIG. 10, when the coordinate of the current position of the left blade is 10, the utterance means that the left blade is moved to the coordinates indicating "10+5" displayed together with the X-ray image XI with respect to the X-ray image XI. Note that the utterance of the arrangement of the blade to be moved and the numerical value indicating the coordinate of the blade to be moved is not limited to the above-mentioned "Aperture left, +5" and may be another utterance such as "+5, aperture left".

[0084] The microphone 150 collects the movement instruction word MIW, and outputs an electrical signal corresponding to the collected movement instruction word MIW to the remote control console 130. For example, the voice of the user UR collected by the microphone 150 is a relative value with respect to the current position of the aperture blade. The voice recognition function 151 recognizes the aperture blade to be moved based on the voice of the user UR, i.e., the movement instruction word MIW. Specifically, the voice recognition function 151 recognizes the arrangement of the aperture blade to be controlled by the voice movement control process and the relative value of the aperture blade to be moved based on the movement instruction word MIW of the user UR. The voice recognition function 151 outputs the aperture movement instruction to the movement amount calculation function 153.

[0085] The processing circuit 145 calculates the movement amount of the movement target based on the aperture movement instruction by the movement amount calculation function 153. The calculation of the movement amount by the movement amount calculation function 153 is the same as that of the embodiment, so the description will be omitted. At this time, the system control unit 11 moves the aperture blade of the movement target according to the calculated movement amount. That is, as shown in FIG. 10, the system control unit 11 controls the X-ray aperture 1b so as to move the aperture blade of the movement target to a destination position based on the recognized relative value. The hatching SR in FIG. 10 corresponds to the area (shielding area) where X-rays are shielded by the X-ray aperture. The voice movement control process in this modification is the same as that of the embodiment except that the voice of the user UR in step S304 in FIG. 3 is different from that of the embodiment, so the description of the voice movement control process will be omitted.

[0086] In the X-ray diagnostic apparatus 100 according to this modification, the voice of the user UR collected by the microphone 150 is a relative value with respect to the current position of the aperture blade. As a result, according to the X-ray diagnostic apparatus 100 according to the third modification, the destination of the aperture blade can be more easily specified by voice, and the operability of the aperture operation can be improved. Other effects are the same as those of the embodiment, and therefore the description will be omitted.

[0087] (Fourth Modification) This modification uses a bed 5 as a control target. At this time, the system control unit 11 controls the bed 5 so as to move the bed 5 to a position corresponding to the recognized numerical value. FIG. 11 is a diagram showing an example of an outline of the procedure of the voice movement control process according to this modification. In this modification, the user UR utters "bed voice operation" as an activation word. Note that the activation word of the voice movement control process is not limited to the above-mentioned "bed voice operation", and may be other utterances as long as the voice has the intention of operating the bed 5, such as "voice operation, bed". In addition, the other voice may be, for example, a word related to a word used when a doctor instructs a technician to operate the bed 5. In the voice movement control process in this modification, the movement of the bed 5 is controlled. At this time, the current position information of the bed 5 is appropriately updated according to X-ray photography of the subject P, and is stored in the memory 143.

[0088] In this modified example, after uttering "voice operation of bed", the user UR utters the coordinates of the center position of the destination in the X-ray image XI (e.g., in the order of x coordinate and y coordinate). For example, as shown in FIG. 11, when the position coordinates (30, 30) in the X-ray image XI before the operation of moving the center position is set as the center position in the next X-ray imaging, the utterance indicating the coordinates of the center position is, for example, "moving bed, 30, 30". Note that the utterance indicating the coordinates of the center position is not limited to the above-mentioned "moving bed, 30, 30", and may be another utterance such as, for example, "30, 30, moving bed".

[0089] The microphone 150 collects the movement instruction words MIW and outputs an electrical signal corresponding to the collected movement instruction words MIW to the remote control console 130. The voice recognition function 151 recognizes a numerical value indicating the center position of the X-ray irradiation range based on the voice of the user UR, i.e., the movement instruction words MIW. The voice recognition function 151 outputs the coordinates indicating the center position to the movement amount calculation function 153 as a bed movement instruction.

[0090] The processing circuit 145, upon receipt of a bed movement instruction, acquires the current position information of the bed 5 to be moved and the position coordinate correspondence table from the memory 143 by the movement amount calculation function 153. Next, the movement amount calculation function 153 calculates the movement amount of the bed 5 using the current position information, the position coordinate correspondence table, and the coordinates (center position) of the movement destination. The movement amount calculation function 153 outputs the calculated movement amount to the system control unit 11. At this time, the system control unit 11 moves the bed 5 to be moved according to the calculated movement amount. That is, the system control unit 11 controls the bed 5 according to the position (the coordinates of the movement target of the movement destination) corresponding to a recognized numerical value among a plurality of numerical values ​​displayed on the display unit 10 together with the X-ray image. In other words, the system control unit 11 controls the bed 5 so that the position corresponding to the recognized numerical value becomes the center position of the irradiation range.

[0091] As shown in FIG. 11, in this modified example, the field of view position moves without changing the field of view size. In other words, the voice movement control process in this modified example corresponds to changing the center position in the X-ray image XI while maintaining the field of view size according to the voice (coordinates) of the user UR, that is, to moving the bed 5 in parallel to move the X-ray irradiation range. The voice movement control process in this modified example is similar to the embodiment and the second modified example, except that the voice (activation word) of the user UR and the control target in step S304 in FIG. 3 are different from those in the embodiment. That is, in this modified example, the aperture opening degree by the aperture blade and the position of the aperture blade are kept the same, and the bed 5 is moved to generate an X-ray image XI similar to that of the second modified example. For these reasons, the description of the voice movement control process in this modified example is omitted.

[0092] The X-ray diagnostic apparatus 100 according to this modification controls the bed 5 to move to a position corresponding to the numerical value recognized by the voice recognition function 151. Specifically, the X-ray diagnostic apparatus 100 according to this modification recognizes a numerical value indicating the center position of the X-ray irradiation range based on the voice of the user UR, and controls the bed 5 so that the position corresponding to the recognized numerical value becomes the center position of the irradiation range. As a result, the X-ray diagnostic apparatus 100 according to this modification can move the bed 5 according to the voice of the user UR so as to change the center position in the X-ray image XI while maintaining the field of view size without moving the multiple aperture blades. From these points, the X-ray diagnostic apparatus 100 according to this modification can operate the bed 5 to a position intended by the user by voice. That is, the X-ray diagnostic apparatus 100 according to this modification can operate the bed 5 to a position intended by the user by inputting coordinates by voice so that the coordinate position becomes the image center. Other effects are similar to those of the embodiment and the second modification, and therefore will not be described.

[0093] (Fifth Modification) In this modified example, instead of absolute values, relative values ​​are used to specify numerical values ​​by voice, with the position of the bed 5, which is the current object of control, being set to 0. That is, in this modified example, the voice by the user UR is a word indicating a relative value, unlike in the embodiment. The direction in which the bed 5 is moved and the amount of movement in the X-ray image XI are added to the relative value. FIG. 12 is a diagram showing an example of an outline of the procedure of the voice movement control processing according to this modified example.

[0094] In this modified example, after uttering "bed voice operation", the user UR utters the object to be moved (bed 5) and a numerical value (relative value) indicating the position of the bed 5 to be moved to. In other words, the user's voice includes a relative value with respect to the current position of the bed 5. The numerical value indicating the relative value of the bed 5 to be moved to is a relative value with respect to the numerical value (coordinate value) displayed on the display unit 10. Therefore, the coordinates of the destination correspond to a value obtained by adding or subtracting a relative value to the position of the bed 5, which is the current object to be controlled.

[0095] For example, when the bed 5 is moved 10 to the right relative to the X-ray image XI, the movement target and the relative value are uttered, for example, as shown in Fig. 11, as "moving bed, right 10". Note that the movement target and the relative value are not limited to the above "moving bed, right 10", and may be uttered in other ways, such as "right 10, moving bed".

[0096] The microphone 150 collects the movement instruction words MIW and outputs an electrical signal corresponding to the collected movement instruction words MIW to the remote control console 130. For example, the voice of the user UR collected by the microphone 150 is a relative value with respect to the current position of the bed 5. The voice recognition function 151 recognizes the relative value of the bed 5 to be moved to by the voice movement control process based on the voice of the user UR, i.e., the movement instruction words MIW. The voice recognition function 151 outputs a bed movement instruction to the movement amount calculation function 153.

[0097] The processing circuit 145 uses the movement amount calculation function 153 to calculate the amount of movement of the bed 5 based on the bed movement instruction. The calculation of the amount of movement by the movement amount calculation function 153 is the same as in the embodiment, so a description thereof will be omitted. At this time, the system control unit 11 moves the bed 5 according to the calculated movement amount. That is, the system control unit 11 controls the bed 5 so as to move the bed 5 to a destination position based on the recognized relative value, as shown in FIG. 12. The voice movement control process in this modified example is the same as the embodiment, except that the voice (activation word) of the user UR and the control target in step S304 of FIG. 3 are different from those in the embodiment. For this reason, a description of the voice movement control process in this modified example will be omitted.

[0098] In the X-ray diagnostic apparatus 100 according to this modification, the voice of the user UR collected by the microphone 150 is a relative value with respect to the current position of the bed 5. As a result, according to the X-ray diagnostic apparatus 100 according to this modification, the destination of the bed 5 can be more easily specified by voice, and the operability of the movement operation of the bed 5 can be improved. Other effects are similar to those of the embodiment, and therefore description thereof will be omitted.

[0099] (Sixth Modification) In the embodiment and the first to fifth modified examples, the movement of the aperture blades and the movement of the bed 5 are distinguished by an activation word, but in this modified example, the activation word is common to both, for example, "voice movement control." At this time, the user UR's speech in step S304 includes the name of the object to be moved (for example, the aperture blades or the bed 5) in addition to a numerical value. If the user UR's speech in step S304 does not include the name of the object to be moved, the system control unit 11 temporarily stops the voice movement control process for the imaging device 110. At this time, the system control unit 11 outputs a predetermined warning, such as "Please speak the object to be moved," by voice or the like.

[0100] According to this modification, by simplifying the activation word, the voice movement control process can be activated more easily, and the throughput of the examination on the subject P can be improved.

[0101] (Seventh Modification) This modified example is to execute a predetermined image processing on the ROI based on the voice of the user UR in the X-ray image XI. In this modified example, the predetermined image processing is assumed to be an enlarged display of the ROI. In this case, the activation word for activating the image processing related to this modified example is, for example, "enlargement voice operation". Note that the activation word related to the image processing by voice (hereinafter referred to as voice image processing) is not limited to the above-mentioned "enlargement voice operation", and may be other voices that have the intention of operating the image processing by voice, such as "voice operation, enlargement". In addition, the other voices may be words related to words used when a doctor instructs a technician to specify the ROI and to operate the ROI enlargement.

[0102] The microphone 150 collects a voice (e.g., an enlargement voice operation) for executing image processing by the user UR's voice. Next, the processing circuit 145 recognizes that image processing to be executed by voice is to be executed based on the user's voice by the voice recognition function 151. In this modification, after the user UR speaks "enlargement voice operation", the user UR speaks a numerical value corresponding to the coordinate of the center of the ROI to be enlarged in the X-ray image XI, or, if the ROI is rectangular, numerical values ​​corresponding to the coordinates of two points corresponding to the two end points of the diagonal of the rectangular ROI. Note that the numerical values ​​are not limited to the coordinates of one or two points, and may be the coordinates of four points.

[0103] The microphone 150 collects voice corresponding to the numerical value (hereinafter referred to as a processing domain word) and outputs an electrical signal corresponding to the voice to the processing circuit 145. The processing circuit 145 executes a voice recognition process on the electrical signal by a voice recognition function 151 to recognize the numerical value. The voice recognition function 151 outputs the numerical value to the system control unit 11.

[0104] The system controller 11 sets a region of interest (ROI) in the X-ray image XI based on the recognized numerical value by the setting function 111. If the numerical value corresponds to the coordinates of the center of the ROI to be enlarged, the setting function 111 reads out a predetermined range stored in the memory 143. The predetermined range has a magnification ratio relative to the size of the ROI, or a preset vertical and horizontal size. The predetermined range may also be referred to as a predetermined magnification ratio. The predetermined range can be changed as appropriate by a user's instruction via the input interface 141.

[0105] The setting function 111 sets a predetermined range centered on the numerical value as the ROI in the X-ray image XI. That is, when the numerical value recognized by the voice recognition function 151 corresponds to one coordinate, the setting function 111 sets a predetermined range centered on the one coordinate as the region of interest (ROI). Note that, when the numerical value corresponds to the coordinates of two points, the setting function 111 sets a rectangle having the two coordinates as the vertices of a diagonal as the ROI. That is, when the numerical value recognized by the voice recognition function 151 corresponds to two coordinates, the setting function 111 sets a rectangle having a line segment connecting the two coordinates as the diagonal as the region of interest (ROI).

[0106] The system control unit 11 executes a predetermined image processing on the region of interest by the image processing function 113. Specifically, the image processing function 113 enlarges the ROI to the image area on the display unit 10, and generates an enlarged image. That is, the image processing function 113 generates an enlarged image by enlarging the set region of interest (ROI) as the predetermined image processing. The display unit 10 displays the X-ray image on which the image processing has been executed. Specifically, the display unit 10 replaces the displayed X-ray image XI with the enlarged image and displays it. As described above, in this modified example, the ROI is specified according to the voice of the user UR, and the specified ROI is enlarged and displayed. For example, when the coordinates of one point are specified by voice, the specified coordinate position is enlarged and displayed so as to be the center of the screen within a predetermined range.

[0107] With the above configuration, the X-ray diagnostic device 100 according to this modification displays the numerical values ​​and scales of the coordinate system together with the X-ray image in response to the user's utterance of an activation word, and executes a process (hereinafter referred to as audio-image processing) of enlarging the ROI in response to the user's utterance of an enlargement voice operation. The procedure of the audio-image processing will be described below with reference to FIG. 13.

[0108] 13 is a flowchart showing an example of the procedure of the audio image processing. As described above, the audio image processing in this embodiment will be described by taking the ROI enlargement processing as an example. As the contents of the enlargement processing can be applied by a known method, the description will be omitted. Note that an example of other image processing will be described in a modified example described later.

[0109] (Audio and image processing) (Step S131) The imaging device 110 generates an X-ray image XI by irradiating X-rays to the subject P. The display unit 10 displays the X-ray image XI.

[0110] (Step S132) If the user UR speaks an activation word such as "augmented voice operation" (Yes in step S132), the microphone 150 collects a voice corresponding to the activation word. The microphone 150 converts the collected voice into an electrical signal and outputs it to the remote control console 130. Then, the process of step S133 is executed. If the user UR does not speak the activation word (No in step S132), the process of step S140 is executed.

[0111] (Step S133) The processing circuit 145 recognizes the activation word by the voice recognition function 151. As a result, the voice recognition function 151 identifies the content of image processing in the voice image processing. That is, in this modified example, the voice recognition function 151 identifies the content of image processing for the ROI (enlargement processing in this modified example) by recognizing the activation word. In response to the recognition of the activation word, the system control unit 11 causes the display unit 10 to display a plurality of numerical values ​​NV indicating the position in the X-ray image XI together with the X-ray image XI. At this time, the display unit 10 may further display a plurality of scales SC corresponding to the plurality of numerical values ​​NV, respectively.

[0112] (Step S134) If the voice (processing domain word) of the user UR is collected with respect to the numerical value NV displayed on the display unit 10 (Yes in step S134), the process of step S135 is executed. If the voice (processing domain word) of the user UR is not collected with respect to the numerical value NV displayed on the display unit 10 (No in step S134), the process of step S138 is executed. Note that the numerical value corresponding to the collected voice is not limited to the numerical value NV displayed on the display unit 10, and may be a value between the numerical values ​​NV displayed on the display unit 10.

[0113] (Step S135) The processing circuit 145 recognizes a numerical value corresponding to the voice of the user UR using the voice recognition function 151 based on the voice of the user UR collected by the microphone 150 in relation to the numerical value. Specifically, the voice recognition function 151 identifies coordinates related to image processing by voice recognition processing of an electrical signal corresponding to the voice of the user UR. The system control unit 11 sets an ROI in the X-ray image XI using the setting function 111 based on the recognized numerical value.

[0114] (Step S136) The system control unit 11 executes image processing on the set ROI by the image processing function 113. Specifically, the image processing function 113 executes enlargement processing to enlarge the ROI in the X-ray image XI to the image area on the display unit 10. The image processing function 113 generates an enlarged image by enlarging the ROI through the ROI enlargement processing.

[0115] (Step S137) The system control unit 11 causes the display unit 10 to display the processed X-ray image (enlarged image in this modification). That is, the display unit 10 displays the enlarged image under the control of the system control unit 11.

[0116] (Step S138) The system control unit 11 determines whether a predetermined time has passed since the multiple numerical values ​​NV were displayed on the display unit 10. The system control unit 11 also determines whether a predetermined time has passed since the image-processed X-ray image was displayed. If the predetermined time has passed since the multiple numerical values ​​NV were displayed on the display unit 10 (Yes in step S138), the process of step S139 is executed. If the predetermined time has not passed since the multiple numerical values ​​NV were displayed on the display unit 10 (No in step S138), the process of step S134 and subsequent steps is repeated.

[0117] (Step S139) The system control unit 11 hides the multiple scale marks SC and multiple numerical values ​​NV displayed together with the X-ray image XI. The processing content in this step is similar to that in step S309, and therefore a description thereof will be omitted.

[0118] (Step S140) When X-ray photography of the subject P is completed (Yes in step S140), the audio image processing ends. When X-ray photography of the subject P is not completed (No in step S140), the processing from step S131 onwards is repeated. The end of X-ray photography is input by a user instruction via the input interface 141, for example.

[0119] The X-ray diagnostic device 100 according to the seventh modification of the embodiment described above sets a region of interest (ROI) in the X-ray image XI based on a numerical value recognized by the voice recognition function 151, executes a predetermined image processing on the set region of interest (ROI), and displays the X-ray image on which the image processing has been executed. Specifically, when the recognized numerical value corresponds to one coordinate, the X-ray diagnostic device 100 according to the seventh modification of the embodiment sets a predetermined range centered on the one coordinate as the region of interest (ROI), and when the recognized numerical value corresponds to two coordinates, sets a rectangle with a line segment connecting the two coordinates as a diagonal as the region of interest (ROI), generates an enlarged image by enlarging the region of interest (ROI) as a predetermined image processing, and displays the generated enlarged image.

[0120] As a result, the X-ray diagnostic apparatus 100 according to the seventh modified example of the embodiment can set an ROI at a position intended by a user UR, such as a doctor treating a subject P, and can execute image processing on the ROI by voice. Therefore, the X-ray diagnostic apparatus 100 according to this modified example can easily apply image processing to an area intended by the doctor, who is the user UR, even if both hands of the doctor are full. From these points, the X-ray diagnostic apparatus 100 according to this modified example can improve the operability of the X-ray diagnostic apparatus 100 by the user UR, and can improve the throughput of examinations on the subject P.

[0121] (Eighth Modification) In this modified example, in the X-ray image XI, a predetermined image processing different from the enlargement processing is executed on the ROI based on the voice of the user UR. For the sake of concrete explanation, it is assumed that the X-ray image XI is previously subjected to image processing (hereinafter referred to as the first image processing) for improving the visibility of the organs of the subject P. In other words, it is assumed that various parameters related to the first image processing (hereinafter referred to as the first parameters) are previously set by the user UR or a radiologist or the like according to the organs to be imaged before the examination of the subject P using the X-ray diagnostic apparatus 100.

[0122] In this modification, the image processing applied to the ROI (hereinafter referred to as the second image processing) is processing for highlighting an area corresponding to a device in the X-ray image XI. The device is, for example, a catheter, a guidewire, a stent, etc. Various parameters related to the second image processing (hereinafter referred to as the second parameters) are set in advance according to the type of device before the examination of the subject P using the X-ray diagnostic apparatus 100.

[0123] The second image processing is not limited to image processing related to highlighting (changing brightness) of the above-mentioned device (hereinafter referred to as brightness change processing), and may be any image processing (noise reduction, low frequency emphasis, contour emphasis, high frequency emphasis, etc.) as long as it has a parameter different from the first parameter as the second parameter. The programs for executing the first image processing and the second image processing, the first parameters, and the second parameters are stored in the memory 143.

[0124] The microphone 150 collects a voice of the user UR to execute the second image processing on the ROI. The voice to execute the second image processing is, for example, a brightness voice operation, which is a voice indicating an operation to change the brightness in the ROI by the second image processing, unlike the seventh modification. The activation word for the voice image processing is not limited to the above-mentioned "brightness voice operation", and may be other voices with the intention of operating the image processing, such as "brightness operation, enlargement". In addition, the other voices may be words related to words used when a doctor instructs a technician to specify an ROI and operate the second image processing.

[0125] Next, the processing circuit 145 recognizes that the second image processing executed by voice is to be executed based on the user's voice through the voice recognition function 151. In this modification, after uttering "brightness voice operation", the user UR utters a numerical value corresponding to the coordinates of the center of the ROI to be enlarged in the X-ray image XI, or, if the ROI is rectangular, numerical values ​​corresponding to the coordinates of two points corresponding to the two end points of the diagonal of the rectangular ROI. The collection of processing region words and the setting of the ROI by voice are similar to those in the seventh modification, and therefore will not be described.

[0126] The system control unit 11 changes the image processing parameters applied to the region of interest set by the setting function 111 to parameters different from the image processing parameters for the outside of the region of interest in the X-ray image, using the image processing function 113, and executes a predetermined image processing. That is, the image processing function 113 changes the image processing parameters applied to the region of interest from the first parameters to the second parameters, and executes the image processing. As a result, the second image processing is executed on the region of interest. Note that multiple sets of second parameters may be set according to the type of the second image processing. At this time, the second parameters applied to the ROI are selected from multiple second parameter sets according to an instruction from the user UR via the input interface 141, prior to execution of the examination on the subject P.

[0127] The procedure of the audio image processing in this modified example will be described below with reference to the flowchart in Fig. 13. Prior to the execution of the audio image processing shown in Fig. 13, a first parameter related to the first image processing and a second parameter related to the second image processing are set in advance by an instruction from a user UR via the input interface 141. The set first parameter and second parameter are stored in the memory 143.

[0128] (Audio and image processing) (Step S131) The imaging device 110 generates an X-ray image before image processing (hereinafter referred to as an unprocessed image) by irradiating X-rays to the subject P. The system control unit 11 executes a first image processing on the unprocessed image using a first parameter by the image processing function 113, and generates an X-ray image XI after image processing. The display unit 10 displays the generated X-ray image XI.

[0129] (Step S132) If the user UR speaks an activation word such as "brightness voice control" (Yes in step S132), the microphone 150 collects a voice corresponding to the activation word. The microphone 150 converts the collected voice into an electrical signal and outputs it to the remote control console 130. Then, the process of step S133 is executed. If the user UR does not speak the activation word (No in step S132), the process of step S140 is executed.

[0130] (Step S133) The processing circuit 145 recognizes the activation word by the voice recognition function 151. As a result, the voice recognition function 151 identifies the content of image processing in the voice image processing. That is, in this modification, the voice recognition function 151 identifies the content of image processing for the ROI (brightness change processing in this modification) by recognizing the activation word. In response to the recognition of the activation word, the system control unit 11 causes the display unit 10 to display a plurality of numerical values ​​NV indicating the position in the X-ray image XI together with the X-ray image XI. At this time, the display unit 10 may further display a plurality of scales SC corresponding to the plurality of numerical values ​​NV, respectively.

[0131] The process contents of steps S134 and S135 are similar to those of the seventh modified example, and therefore a description thereof will be omitted.

[0132] (Step S136) The system control unit 11 executes the second image processing on the set ROI by the image processing function 113. Specifically, the image processing function 113 changes the first parameter to the second parameter and executes the second image processing on the ROI. As a result, the image processing function 113 generates an X-ray image (hereinafter referred to as a processed X-ray image) in which image processing is different between the area inside the ROI and the area outside the ROI.

[0133] (Step S137) The system control unit 11 causes the display unit 10 to display the processed X-ray image (in this modified example, an X-ray image in which image processing has been performed differently inside and outside the ROI).

[0134] The process contents of steps S138, S139, and S140 are similar to those of steps S308, S309, and S310, respectively, and therefore will not be described.

[0135] The X-ray diagnostic apparatus 100 according to the eighth modification of the embodiment described above sets a predetermined range centered on the one coordinate as a region of interest when the numerical value recognized by the voice recognition function 151 corresponds to one coordinate, and sets a rectangle having a diagonal line connecting the two coordinates as a region of interest when the numerical value recognized by the voice recognition function 151 corresponds to two coordinates, changes the parameters of the image processing applied to the region of interest to parameters (second parameters) different from the parameters (first parameters) of the image processing (first image processing) outside the region of interest in the X-ray image, and executes the predetermined image processing (second image processing).

[0136] As a result, the X-ray diagnostic apparatus 100 according to this modification can specify an ROI by voice, and execute image processing by changing from the first image processing to the second image processing only within the specified ROI. The X-ray diagnostic apparatus 100 according to this modification can execute image processing, for example, with normal image processing parameters (first parameters) that enable observation of organs outside the ROI, and with image processing parameters (second parameters) that enable device emphasis inside the ROI, and display the X-ray image after image processing. Other effects are similar to those of the seventh modification, and therefore will not be described.

[0137] (First application example) This application example is to integrate the seventh and eighth modified examples. Therefore, the activation word in this application example is, for example, a word called "audio image processing operation." In addition, in this application example, the word uttered after the activation word is uttered, that is, in step S134, is a word containing the intention of enlarging or changing the brightness in addition to the numerical value corresponding to the coordinates of the center of the ROI, or the numerical value corresponding to the coordinates of two points corresponding to the two end points of the diagonal line of the rectangular ROI when the ROI is rectangular. The effect of this application example is the same as that of the seventh and eighth modified examples, so a description is omitted.

[0138] (Second application example) This application example is an appropriate combination of the above-mentioned embodiment, the first to eighth modified examples, and the first application example. As a result, this application example makes it possible to operate a plurality of aperture blades, the bed 5, or image processing according to the intention of the user UR. In this application example, the processing of the embodiment and the first to eighth modified examples is executed according to the utterance of the activation word in step S132. The effects of this application example are similar to those of the embodiment, the first and eighth modified examples, and the first application example, and therefore will not be described.

[0139] When the technical idea of ​​the present embodiment is realized by an X-ray photography control method, the X-ray photography control method includes: generating an X-ray image XI by X-ray photography of a subject P by an imaging system 110 having an X-ray tube 1a that generates X-rays, an X-ray aperture 1b that narrows the irradiation range of X-rays, an X-ray detection unit 3 that detects X-rays, and a bed 5 on which the subject P to be irradiated with X-rays is placed; displaying a plurality of numerical values ​​indicating a position in the X-ray image XI together with the X-ray image XI; recognizing a numerical value corresponding to the voice of a user UR based on the collected numerical values; and controlling the imaging system 110 according to a position corresponding to the recognized numerical value among the plurality of numerical values. The processing procedure corresponding to the X-ray photography control method corresponds to the procedure of the voice movement control process or the voice image control process, and therefore a description thereof will be omitted. In addition, the effects of the X-ray photography control method are similar to those of the embodiment, the first to eighth modified examples, and the first and second applied examples, and therefore a description thereof will be omitted.

[0140] (Third application example) In this application example, the display unit 10 displays the voice of the user UR recognized by the voice recognition function 151 and / or the numerical value recognized by the voice recognition function 151. That is, the display unit 10 in this application example displays the letters and / or numbers in the movement instruction word MIW. The process in this application example is performed, for example, in step S305 in FIG. 3.

[0141] The processing circuit 145 executes a voice recognition process on the electrical signal corresponding to the voice of the user UR collected via the microphone 150 by the voice recognition function 151. The voice recognition function 151 stores the recognition result related to the voice of the user UR in the memory 143. The recognition result includes, for example, the voice of the user UR recognized by the voice recognition function 151 and / or a numerical value recognized by the voice recognition function 151.

[0142] The system control unit 11 causes the display unit 10 to display the recognition result of the voice of the user UR. That is, the display unit 10 displays the recognized voice of the user UR and / or the recognized numerical value. At this time, the display unit 10 may display the voice of the user UR and / or the recognized numerical value in the order in which they are recognized by the voice recognition function 151. That is, the display unit 10 may sequentially display the recognition result of the voice of the user UR in real time in the order in which the voice is spoken.

[0143] FIG. 14 is a diagram showing an example of display before and after the user UR speaks "narrow left 15" as the movement instruction word MIW. As shown in FIG. 14, before the movement instruction word MIW is spoken, nothing is displayed in the area (hereinafter referred to as the speech display area) UDA where the recognition result of the user UR's voice, i.e., the movement instruction word MIW, is displayed. As shown in FIG. 14, when the movement instruction word MIW is spoken, the display unit 10 displays the movement instruction word MIW, "narrow left 15", in the speech display area UDA as the recognition result of the user UR's voice. That is, in the example shown in FIG. 14, the display unit 10 displays "narrow left" indicating the recognized voice of the user UR and the recognized numerical value "15" in the speech display area UDA.

[0144] The X-ray diagnostic apparatus 100 according to the third application example of the embodiment described above further recognizes the voice of the user UR and displays the recognized voice of the user UR and / or the recognized numerical value. As a result, according to the X-ray diagnostic apparatus 100 according to the third application example of the embodiment, the instruction content (recognition result) of the aperture operation recognized by the voice recognition function 151 can be displayed as characters on the display unit 10 as shown in FIG. 14, so that the user UR can confirm that the voice recognition function 151 correctly recognized the voice of the user UR. In other words, according to the X-ray diagnostic apparatus 100 according to the third application example of the embodiment, it is possible to easily communicate with the X-ray diagnostic apparatus 100 and the user UR. Since other effects are similar to those of the embodiment, description thereof will be omitted.

[0145] (Example 4) In this application example, a numerical value recognized by the voice recognition function 151 is displayed on the display unit 10. The process in this application example is performed, for example, in step S305 in FIG.

[0146] The system control unit 11 highlights and displays the numerical value corresponding to the voice on a plurality of scales SC corresponding to the plurality of numerical values ​​NV, respectively. The highlighted display of the recognized numerical value may be, for example, highlighting the recognized numerical value, blinking the recognized numerical value, or a conspicuous symbol placed at the position of the recognized numerical value. The symbol may be a circle surrounding the recognized numerical value, various figures such as a star, or a halo around the recognized numerical value.

[0147] For ease of explanation, the following description will be given assuming that the display unit 10 displays a numerical value recognized by the voice recognition function 151 in a highlighted manner on the multiple scale marks SC. Specifically, when a numerical value that is not displayed on the multiple scale marks SC is recognized by the voice recognition function 151, the system control unit 11 causes the display unit 10 to display the recognized numerical value in a highlighted manner.

[0148] Fig. 15 is a diagram showing an example of displaying a numerical value recognized by the voice recognition function 151 with highlight HL. Fig. 15 is a diagram showing an example of display before and after a user UR speaks "Squeeze left 17" as a movement instruction word MIW. As shown in Fig. 15, when the movement instruction word MIW is spoken, the display unit 10 displays the numerical value 17 in the movement instruction word MIW "Squeeze left 17" with highlight HL on multiple scales SC.

[0149] The X-ray diagnostic apparatus 100 according to the fourth application example of the embodiment described above highlights the recognized numerical value on the multiple scale marks SC corresponding to the multiple numerical values, respectively. As a result, the X-ray diagnostic apparatus 100 according to the fourth application example of the embodiment allows the user UR to grasp the numerical value corresponding to the current aperture position at a glance. Other effects of this application example are similar to those of the embodiment and the third application example of the embodiment, and therefore description thereof will be omitted.

[0150] According to at least the embodiment, the modified examples, the application examples, and the like described above, the X-ray diagnostic apparatus 100 can be appropriately controlled in response to the desires of the user.

[0151] Although some embodiments have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations of embodiments can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope of the invention and its equivalents as described in the claims, as well as in the scope and spirit of the invention. [Explanation of symbols]

[0152] 1 X-ray generating unit 1a x-ray tube 1b X-ray squeezer 2 High voltage generator 3 X-ray detection unit 3a Flat detector 3b Image data generation unit 3b-1 Charge-to-voltage converter 3b-2 A / D converter 3b-3 Parallel-serial converter 3c Gate Driver 4 Holding Arm 5 berths 7 Mechanical control section 9 Image storage circuit 10 Display 10a Display image memory 10b D / A converter 10c display circuit 10d monitor 11 System control section 100 X-ray diagnostic equipment 110 Imaging Device 111 Setting Function 113 Image Processing Functions 120 Close-range control console (console device) 121 Fluoroscopy Monitor 130 Remote control console (console device) 131 Image Processing Device 133 System Monitor 135 Fluoroscopy Monitor 137 Input Devices 141 Input Interface 143 Memory 145 Processing Circuit 151 Voice Recognition Function 153 Movement amount calculation function

Claims

1. an imaging system including an X-ray tube for generating X-rays, an X-ray aperture for narrowing an irradiation range of the X-rays, an X-ray detection unit for detecting the X-rays, and a bed on which a subject to be irradiated with the X-rays is placed; a display unit that displays a plurality of numerical values ​​indicating positions in an X-ray image generated by X-ray imaging of the subject using the imaging system together with the X-ray image; a voice recognition unit that recognizes a numerical value corresponding to the user's voice based on the collected user's voice regarding the numerical value; a control unit that controls the imaging system in accordance with a position corresponding to the recognized numerical value among the plurality of numerical values; An X-ray diagnostic apparatus comprising:

2. The X-ray aperture has a plurality of aperture blades, The control unit controls the X-ray aperture so as to move at least one of the plurality of aperture blades to a position corresponding to the recognized numerical value.

2. The X-ray diagnostic apparatus according to claim 1.

3. The X-ray aperture has two aperture blades facing each other as the plurality of aperture blades, The voice recognition unit recognizes one of the two aperture blades based on the voice, The control unit controls the X-ray aperture so as to move the one aperture blade to a position corresponding to the recognized numerical value.

3. The X-ray diagnostic apparatus according to claim 2.

4. The X-ray aperture has two aperture blades facing each other as the plurality of aperture blades, the voice recognition unit recognizes the two aperture blades based on the voice, The control unit controls the X-ray aperture so as to symmetrically move the two aperture blades to positions corresponding to the recognized numerical values.

4. The X-ray diagnostic apparatus according to claim 3.

5. the voice recognition unit recognizes a numerical value indicating a center position of the X-ray irradiation range based on the voice; the control unit controls the X-ray aperture to independently move the plurality of aperture blades so that a position corresponding to the recognized numerical value becomes a center position of the irradiation range.

4. The X-ray diagnostic apparatus according to claim 3.

6. The X-ray aperture has a plurality of aperture blades, The display unit is A plurality of scales respectively corresponding to the plurality of numerical values; a number and a scale corresponding to a current position of one of the plurality of aperture blades; Show more 2. The X-ray diagnostic apparatus according to claim 1.

7. The user's voice is relative to the current aperture blade position.

3. The X-ray diagnostic apparatus according to claim 2.

8. The control unit controls the bed to move to a position corresponding to the recognized numerical value.

2. The X-ray diagnostic apparatus according to claim 1.

9. the voice recognition unit recognizes a numerical value that is a center position of the X-ray irradiation range based on the voice; The control unit controls the bed so that a position corresponding to the recognized numerical value becomes a center position of the irradiation range.

9. The X-ray diagnostic apparatus according to claim 8.

10. The user's voice includes a relative value to a current bed position.

9. The X-ray diagnostic apparatus according to claim 8.

11. a setting unit that sets a region of interest in the X-ray image based on the recognized numerical value; an image processing unit that performs a predetermined image processing on the region of interest; Further equipped with The display unit displays the X-ray image on which the image processing has been performed.

2. The X-ray diagnostic apparatus according to claim 1.

12. The setting unit is If the recognized numerical value corresponds to one coordinate, a predetermined range centered on the one coordinate is set as the region of interest; When the recognized numerical value corresponds to two coordinates, a rectangle having a diagonal line connecting the two coordinates is set as the region of interest; The image processing unit generates an enlarged image by enlarging the region of interest as the predetermined image processing, The display unit displays the enlarged image.

12. The X-ray diagnostic apparatus according to claim 11.

13. The setting unit is If the recognized numerical value corresponds to one coordinate, a predetermined range centered on the one coordinate is set as the region of interest; When the recognized numerical value corresponds to two coordinates, a rectangle having a diagonal line connecting the two coordinates is set as the region of interest; the image processing unit changes parameters of image processing applied to the region of interest to parameters different from parameters of image processing for an area outside the region of interest in the X-ray image, and executes the predetermined image processing.

12. The X-ray diagnostic apparatus according to claim 11.

14. When a predetermined time has elapsed since the plurality of numerical values ​​were displayed on the display unit, the control unit makes the plurality of numerical values ​​on the display unit non-display.

14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

15. the display unit further displays a plurality of scales respectively corresponding to the plurality of numerical values, the voice recognition unit recognizes a numerical value that does not correspond to the scale based on the voice; 14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

16. The display unit is A plurality of scales respectively corresponding to the plurality of numerical values; A plurality of scale lines corresponding to the plurality of scales; Show more 14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

17. The display unit displays the plurality of numerical values ​​outside the X-ray image.

14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

18. The voice recognition unit further recognizes the voice of the user, The display unit displays the recognized voice of the user and / or the recognized numerical value.

14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

19. The display unit is and highlighting the recognized numerical value on a plurality of scales corresponding to the plurality of numerical values, respectively.

14. An X-ray diagnostic apparatus according to any one of claims 1 to 13.

20. generating an X-ray image by X-ray photography of the subject using an imaging system having an X-ray tube that generates X-rays, an X-ray aperture that narrows an irradiation range of the X-rays, an X-ray detector that detects the X-rays, and a bed on which the subject is placed and on which the subject is irradiated with the X-rays; displaying a plurality of numerical values ​​indicating positions in the X-ray image together with the X-ray image; Recognizing a number corresponding to the voice based on the collected user voice related to the number; controlling the imaging system according to a position corresponding to the recognized numerical value among the plurality of numerical values; An X-ray photography control method comprising:

Images