Medical image capture system, capture control device, medical image capture method and program

Abstract

To provide an imaging control device or the like capable of reducing a burden on a patient while positioning efficiently in taking radiograph.SOLUTION: A medical imaging system 10A comprises: an acquisition unit which acquires imaging order information including information on positioning; a determination unit which determines whether the acquired imaging order information meets a predetermined condition; and a reporting unit which reports imaging support information 9a before the start of the positioning in a case where the imaging order information meets the predetermined condition.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a medical image capturing system, an imaging control device, a medical image capturing method, and a program. [Background technology]

[0002] Conventionally, in the medical field, examinations are performed based on radiation images obtained by radiation photography. In radiation photography, the patient is positioned based on the imaging direction and other information in the input order information. In order to avoid failure in radiation photography, it is important to position the patient appropriately.

[0003] Here, radiation imaging is imaging in which a three-dimensional subject image is projected onto a two-dimensional plane. The distance between the subject and the detector in radiation imaging varies depending on the subject's position. Therefore, a part of the subject may be imaged in an enlarged manner depending on the imaging direction. Therefore, the imaging direction during radiation imaging is often basically determined for each imaging part.

[0004] Patent Document 1 discloses a radiography device that determines the orientation of a subject. The radiography device determines the orientation of the subject based on a visible image of the subject acquired by an image acquisition means. Next, when the radiography device determines that the orientation of the subject differs from the protocol, it issues a warning and prohibits radiography of the subject. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] International Publication No. 2019-208006 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in conventional technology, after the patient positioning is completed, it is judged whether the subject's positioning is correct or not according to the protocol. Therefore, when it is judged that the patient's orientation should be changed, there is a problem that it wastes a lot of time and increases the burden on the patient. In particular, when radiography is performed in a non-standard shooting direction, the radiologist may mistakenly position the patient in the standard shooting direction.

[0007] Therefore, an object of the present invention is to provide a medical image capturing system, an imaging control device, a medical image capturing method, and a program that can efficiently perform positioning and reduce the burden on a patient in radiation imaging. [Means for solving the problem]

[0008] The medical image capturing system according to the present invention comprises: an acquisition unit for acquiring imaging order information including information regarding a positioning of a patient; Whether or not the information on the positioning of the patient included in the acquired imaging order information corresponds to the information on the positioning of the patient stored in advance. Based on the above, the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently radiographed. A determination unit for determining Based on the determination result of the determination unit, before starting positioning of the patient and drawing attention to the fact that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently used for radiography. A notification unit that notifies the user of shooting support information; Equipped with. Further, the medical image capturing system according to the present invention comprises: Patient an acquisition unit that acquires imaging order information including information regarding positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; If the photographing order information satisfies the predetermined condition, The patient a notification unit that notifies the imaging support information before starting positioning; A setting unit that enables the predetermined condition to be set, The setting unit can set, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. Further, the medical image capturing system according to the present invention comprises: Patient an acquisition unit that acquires imaging order information including information regarding positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; If the photographing order information satisfies the predetermined condition, The patient a notification unit that notifies the imaging support information before starting positioning; a storage unit that stores information on the photographing direction and notification necessity information on whether or not to notify the photographing support information in association with each other; a determination unit that determines notification necessity information corresponding to the information of the photographing direction stored in the storage unit based on the information of the photographing direction acquired as the photographing order information by the acquisition unit, The determination unit determines whether the predetermined condition is satisfied based on the specified notification necessity information, When a predetermined condition is satisfied, the notification unit notifies the photographing support information based on the specified notification necessity information.

[0009] The imaging control device according to the present invention comprises: an acquisition unit for acquiring imaging order information including information regarding a positioning of a patient; Whether or not the information on the positioning of the patient included in the acquired imaging order information corresponds to the information on the positioning of the patient stored in advance. Based on the above, the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently radiographed. A determination unit for determining Based on the determination result of the determination unit, before starting positioning of the patient and drawing attention to the fact that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently used for radiography. A notification unit that notifies the user of shooting support information; Equipped with. Further, the imaging control device according to the present invention comprises: Patient an acquisition unit that acquires imaging order information including information regarding positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; When the photographing order information satisfies the predetermined condition, The patient a notification unit that notifies the imaging support information before starting positioning; A setting unit that enables the predetermined condition to be set, The setting unit can set, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other.

[0010] The medical image capturing method according to the present invention comprises: acquiring imaging order information including information regarding a positioning of a patient; Whether or not the information on the positioning of the patient included in the acquired radiography order information corresponds to the information on the positioning of the patient stored in advance. Based on the above, the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently radiographed. A determination step of determining The aforementioned judgment of Based on the results, before starting patient positioning and drawing attention to the fact that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently used for radiography. a notification step of notifying the photographing support information; has.

[0011] The program according to the present invention comprises: Computer, an acquisition unit for acquiring imaging order information including information regarding the positioning of a patient; Whether or not the information on the positioning of the patient included in the acquired imaging order information corresponds to the information on the positioning of the patient stored in advance. Based on the above, the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently radiographed. A determination unit for determining Based on the determination result of the determination unit, before starting positioning of the patient and drawing attention to the fact that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently used for radiography. A notification unit that notifies the user of shooting support information; Function as. In addition, the program according to the present invention is Computer, Patient an acquisition unit that acquires imaging order information including information regarding positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; When the photographing order information satisfies the predetermined condition, The patient a notification unit that notifies the imaging support information before starting positioning; A setting unit that can set the predetermined condition, The setting unit can set, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. Effect of the Invention

[0012] According to the present invention, since the imaging support information is notified to the user before the start of positioning of the patient, the user can prevent positioning errors according to the imaging direction, etc. [Brief description of the drawings]

[0013] [Figure 1] 1 is a diagram showing a schematic configuration of a medical image capturing system according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a block diagram of an imaging control device according to the present embodiment. [Diagram 3] FIG. 13 is a diagram showing a list of representative imaging regions according to the present embodiment, imaging directions that can be specified for each imaging region, normal imaging directions, and reasons for each imaging direction. [Figure 4] 13 is a diagram showing an example of a setting screen for setting notification necessity information or the like indicating whether or not to notify imaging support information according to an imaging part and an imaging direction according to the present embodiment. FIG. [Diagram 5] 5 is a diagram showing an example of a configuration of a table stored in a storage unit according to the embodiment; FIG. [Figure 6] 5 is a flowchart showing an example of the operation of the imaging control device when capturing a radiation image of a subject according to the present embodiment. [Figure 7] 5 is a diagram showing an example of the configuration of an imaging screen displayed on a display unit of the imaging control device according to the present embodiment. FIG. [Figure 8]11 is a diagram showing an example of shooting support information displayed on a shooting screen of a display unit according to the embodiment. FIG. [Figure 9] FIG. 13 is a diagram showing an example of the configuration of an imaging screen displayed on the display unit when an imaging region included in order information according to another embodiment 1 is an imaging region that is imaged very infrequently. [Figure 10] FIG. 11 is a diagram showing an example of imaging support information displayed in an examination list on a display unit according to another embodiment 1. [Figure 11] FIG. 11 is a diagram showing an example of a shooting screen displayed on a display unit during double focus shooting according to another embodiment 2. [Figure 12] FIG. 11 is a diagram showing a schematic configuration of a medical image capturing system according to another embodiment 3. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.

[0015] [Example of configuration of medical imaging system 10A] FIG. 1 is a diagram showing a schematic configuration of a medical image capturing system 10A. The medical image capturing system 10A includes a radiographic image capturing device 1, an image capturing control device 2, a radiation generating device 3, an image management device 4, and an HIS / RIS 5. In the following, the radiographic image capturing device may be referred to as the image capturing device 1, and the radiation generating device may be referred to as the generator 3. HIS is an abbreviation for Hospital Information System, which is a hospital information system. RIS is an abbreviation for Radiology Information System, which is a radiology department information system. In this embodiment, the image capturing device 1 and the generator 3 are placed in an image capturing room. The image capturing control device 2, the image management device 4, and the HIS / RIS 5 are placed in an examination room.

[0016] The photographing device 1, the photographing control device 2, the generating device 3, and the image management device 4 are connected to each other so as to be able to communicate with each other via a network N. Examples of the network N include a LAN, a WAN, and the Internet. LAN is an abbreviation for Local Area Network. WAN is an abbreviation for Wide Area Network. The communication method of the network N may be wired or wireless.

[0017] The generating device 3 includes a generator 31 , a switch 32 and a radiation source 33 .

[0018] The generator 31 applies a voltage according to preset imaging conditions to a radiation source 33 including, for example, a tube, based on the operation of the switch 32. The generator 31 may have an operation unit that accepts input of radiation irradiation conditions and the like.

[0019] When a voltage is applied from the generator 31 to the radiation source 33, the radiation source 33 generates radiation R with a dose corresponding to the applied voltage. The radiation R is, for example, an X-ray.

[0020] The generating device 3 generates radiation R in a manner corresponding to the type of radiation image, for example, a still image or a dynamic image. Specifically, in the case of a still image, the generating device 3 irradiates radiation R only once per pressing of the switch 32. In the case of a dynamic image, the generating device 3 irradiates pulsed radiation R repeatedly multiple times per predetermined time per pressing of the switch 32, for example.

[0021] The imaging device 1 generates digital image data showing the imaging region of the subject. For example, a portable FPD is used as the imaging device 1. FPD is an abbreviation for Flat Panel Detector.

[0022] Although not shown, the imaging device 1 includes, for example, an imaging element, a sensor board, a scanning unit, a readout unit, a control unit, and a communication unit. The imaging element generates an electric charge according to the radiation dose when exposed to radiation R. The sensor board has switch elements arranged two-dimensionally (in a matrix) and stores and releases electric charge. The scanning unit switches each switch element on / off. The readout unit reads out the amount of electric charge released from each pixel as a signal value. The control unit generates a radiographic image from the multiple signal values ​​read out by the readout unit. The communication unit transmits data on the generated radiographic image and various signals to other devices such as the imaging control device 2, and receives various information and signals from other devices.

[0023] The imaging device 1 accumulates and releases electric charges and reads out signal values ​​in synchronization with the timing of irradiation of radiation R from the generating device 3. The imaging device 1 generates image data of a still image or image data of a dynamic image based on the read signal values, etc. The imaging device 1 outputs the generated image data to the imaging control device 2. The imaging device 1 may be configured integrally with the generating device 3.

[0024] The imaging control device 2 sets imaging conditions for the imaging device 1 and the generator 3, and controls the reading operation of the radiation image captured by the imaging device 1. The imaging control device 2 is also called a console, and is configured by, for example, a personal computer. When the imaging direction of the order information (imaging order information) is different from the normal imaging direction, the imaging control device 2 notifies the imaging support information 9a before starting the positioning of the patient. In other words, when the imaging direction of the order information is a less frequently used imaging direction, the imaging control device 2 notifies the imaging support information 9a before starting the positioning of the patient. Here, the imaging support information 9a is information for supporting the positioning of the patient by a user such as a radiologist during imaging. Specifically, the imaging support information 9a is information for calling the user's attention that the imaging direction of the order information is different from the normal imaging direction.

[0025] The imaging conditions include, for example, patient conditions related to the subject S, irradiation conditions related to the irradiation of radiation R, and image reading conditions related to the image reading of the imaging device 1. The patient conditions include, for example, the imaging part, imaging direction, and physique. The irradiation conditions include, for example, tube voltage (kV), tube current (mA), irradiation time (ms), and current-time product (mAs value). The image reading conditions include, for example, image size and frame rate. The imaging control device 2 may automatically set the imaging conditions based on order information acquired from the HIS / RIS 5, etc. Alternatively, the imaging control device 2 may allow a user, such as a radiologist, to manually set the imaging conditions by operating the operation unit 21.

[0026] The display device 26 is connected to the imaging control device 2. The display device 26 is connected to the imaging control device 2 using an interface such as HDMI (registered trademark). HDMI is an abbreviation for High-Definition Multimedia Interface. The communication method may be wired or wireless. The display device 26 is arranged in the imaging room so that the user in the imaging room can see it. The display device 26 is, for example, configured with a general-purpose monitor such as a liquid crystal display, as described later. For example, the same image as the image displayed on the display unit 22 of the imaging control device 2 can be displayed on the screen of the display device 26. Specifically, in addition to the imaging screen, the screen of the display device 26 displays imaging support information 9a for calling the user's attention when the imaging direction of the order information is different from the normal imaging direction. This allows the user in the imaging room to recognize that the imaging direction specified in the current order information is a rare imaging direction that is used infrequently. In this embodiment, the display device 26 functions as an external device that displays the imaging support information 9a output from the imaging control device 2 and as an imaging device. In the medical image capturing system 10A, the display device 26 may not be provided depending on the equipment, space, and the like of the facility.

[0027] The image management device 4 manages the image data generated by the imaging device 1. The image management device 4 is an image archiving and communication system, an image diagnosis workstation, etc. The image archiving and communication system is sometimes called PACS. PACS is an abbreviation for Picture Archiving and Communication System.

[0028] The HIS / RIS 5 receives order information regarding radiography of a patient from, for example, a doctor, and transmits the received order information to the radiography control device 2. The order information includes various information such as the patient's ID, the body part to be radiographed, the radiography direction, and the physique.

[0029] [Block diagram of imaging control device 2] FIG. 2 is a block diagram of the imaging control device 2. The imaging control device 2 includes a control unit 20, an operation unit 21, a display unit 22, a storage unit 23, and a communication unit 24. The control unit 20, the operation unit 21, the display unit 22, the storage unit 23, and the communication unit 24 are connected to each other so as to be able to communicate with each other via a bus 25, for example.

[0030] The control unit 20 includes at least a processor such as a CPU and a memory such as a RAM. The CPU loads various programs stored in the storage unit 23 into the RAM and executes the programs to realize various functions. CPU is an abbreviation for Central Processing Unit. RAM is an abbreviation for Random Access Memory. The CPU may be configured with a single processor or multiple processors.

[0031] In this embodiment, the control unit 20 functions as an acquisition unit, a determination unit, a setting unit, a specification unit, and a notification unit. The functions of the acquisition unit, the determination unit, the setting unit, the specification unit, and the notification unit are realized by the processor of the control unit 20 executing a program stored in the storage unit 23 or the like.

[0032] The acquisition unit acquires radiography order information including information on the positioning of the patient. The information on positioning includes the radiography part and the radiography direction included in the order information. The information on the radiography direction is the irradiation direction of the radiation R in a predetermined radiography direction. Specifically, when one side of the subject S is brought into contact with the radiography device 1, the direction from the other side of the subject S to the one side in the radiography direction coincides with the irradiation direction of the radiation R. The determination unit determines whether the acquired photographing order information satisfies a predetermined condition. The setting unit can set, as a predetermined condition, information on the shooting direction and notification necessity information on whether or not to notify the shooting support information 9a in association with each other. The information on the shooting direction and the notification necessity information on whether or not to notify the shooting support information 9a are stored in the storage unit 23 as a table 23a. The specifying unit specifies notification necessity information corresponding to the information on the imaging direction stored in the table 23a, based on the information on the imaging direction of the acquired imaging order information. The determination unit determines that a predetermined condition is satisfied when the identified notification necessity information is information indicating that the shooting support information 9a is to be notified (ON). When the photographing order information satisfies a predetermined condition, the notification unit notifies the photographing support information 9a before starting positioning.

[0033] The operation unit 21 accepts instructions according to various input operations from the user, converts the accepted instructions into operation signals, and outputs the operation signals to the control unit 20. The operation unit 21 includes, for example, a mouse, a keyboard, a switch, a button, and the like. The operation unit 21 may be, for example, a touch panel integrally combined with a display. The operation unit 21 may be, for example, a user interface that accepts voice input from a microphone or the like. The operation unit 21 of this embodiment accepts settings of notification necessity information of the shooting support information 9a according to the shooting direction, etc., and the shooting support information 9a according to the notification necessity information, etc.

[0034] The display unit 22 displays a radiographic image based on image data received from the imaging device 1, and a GUI for receiving various input operations from the user. GUI is an abbreviation for Graphical User Interface. The display unit 22 is, for example, a display such as a liquid crystal display or an organic EL display. EL is an abbreviation for Electro Luminescence. The display unit 22 of this embodiment displays imaging support information 9a, etc., on the imaging screen to alert the user when the imaging direction of the order information is different from normal.

[0035] The storage unit 23 stores, for example, system programs, application programs, and various data. The storage unit 23 includes any storage module including, for example, an HDD, an SSD, a ROM, and a RAM. HDD is an abbreviation for Hard Disk Drive. SSD is an abbreviation for Solid State Drive. ROM is an abbreviation for Read Only Memory. The storage unit 23 of this embodiment stores a table 23a in which the shooting direction is associated with notification necessity information indicating whether to notify the user of the shooting support information 9a depending on the shooting direction.

[0036] The communication unit 24 includes, for example, a communication module including a NIC, a receiver, and a transmitter. NIC is an abbreviation for Network Interface Card. The communication unit 24 communicates various data such as image data between the photographing device 1 and the image management device 4 via the network N.

[0037] The imaging control device 2 may be configured not to include the operation unit 21 and the display unit 22. In this case, the imaging control device 2 may receive a control signal from an operation unit provided in an external device connected via the communication unit 24. The imaging control device 2 may also output an image signal to a display unit provided in the external device to display a radiation image or the like. The external device may be an image management device 4 or the like, or may be another device.

[0038] [General shooting directions for typical areas to be photographed] Next, a general imaging direction in a typical imaging region will be described. FIG. 3 shows a list of typical imaging regions, imaging directions that can be specified for the imaging regions, normal imaging directions, and reasons for the imaging directions.

[0039] First, the terminology used in the drawings regarding the imaging directions will be explained. AP is an abbreviation of Anterior-Posterior. AP radiography is performed by bringing the back side of the patient's body into contact with the radiography device 1 so that radiation passes from the front to the back of the patient. PA is an abbreviation of Posterior-Anterior. PA imaging is performed by bringing the abdominal side of the patient's body into contact with the imaging device 1 so that radiation passes from the back to the front of the patient. LR is an abbreviation for Left-Right. In LR imaging, the right side of the patient's body is brought into contact with the imaging device 1 and radiation is emitted from the left side of the patient to the right side. RL is an abbreviation for Right-Left. In RL imaging, the left side of the patient's body is brought into contact with the imaging device 1 and radiation is emitted from the right side to the left side of the patient. Routine is general imaging at the site.

[0040] As shown in Figure 3, when the imaging area is "chest in a frontal upright position", two imaging directions, "AP" and "PA", can be specified. However, when the imaging area is "chest in a frontal upright position", "PA" is generally specified as the imaging direction. The reason for specifying "PA" is to prevent magnified imaging of the heart. Also, in a survey of the specification rates of PA and AP for "chest in a frontal upright position" at multiple hospitals, it was confirmed that "PA" is overwhelmingly specified as the imaging direction.

[0041] For other imaging regions, the imaging direction is usually fixed in order to accurately capture radiographic images and reduce the burden on the patient during positioning. For example, when the imaging region is "chest frontal sitting position," "AP" is specified as the imaging direction. The reason "AP" is specified is that, for example, imaging in a wheelchair is difficult with "PA."

[0042] However, depending on the pathological condition of the patient, an imaging direction that is used infrequently may be specified on rare occasions. For example, when the imaging part is "chest, frontal, upright position," "AP" may be specified as the imaging direction. In such a case, a user such as a radiologist in charge may overlook the imaging direction ordered by the doctor and take an image in an imaging direction different from the order. This is because the user sees the input imaging direction and assumes that the ordered imaging direction is "PA," which is frequently used and is a normal imaging direction. In particular, when a user is busy, etc., the user is likely to misinterpret the imaging direction.

[0043] Therefore, in this embodiment, when an order is input specifying a specific shooting direction that is different from the normal shooting direction, a notification to that effect is provided before starting positioning of the patient to alert the user that the shooting direction is different from the normal shooting direction. In addition, when the imaging part is "side of the head" or the like, the two directions "LR" and "RL" are generally designated, and there are cases where routine imaging is not determined. In this embodiment, for such imaging parts, control may be performed not to call the user's attention using the imaging support information 9a. Also, control may be performed to notify the user of the imaging support information 9a when either of the above two directions is designated.

[0044] [Example of configuration of setting screen 70] FIG. 4 shows an example of a setting screen 70 for setting notification necessity information, etc., which indicates whether or not to notify the imaging support information 9a according to the imaging part and imaging direction. The control unit 20 causes the display unit 22 to display a setting screen 70 that enables setting of information on the shooting direction and notification necessity information on whether to notify the shooting support information 9a in association with each other. The setting screen 70 may be displayed in response to, for example, a user's selection of a setting button or the like displayed on the display unit 22.

[0045] The setting screen 70 is provided with a part setting section 71, a direction setting section 72, and a notification necessity setting section 73. The part setting section 71 has an input field for inputting an imaging part. The direction setting section 72 has an input field for inputting an imaging direction. The notification necessity setting section 73 has an input field for inputting ON or OFF of notification necessity information for indicating whether or not to notify the imaging support information 9a.

[0046] Specifically, when "chest standing position" is input in the part setting section 71 and "AP" is input in the direction setting section 72, the user inputs "ON" as the notification of the photographing support information 9a. This is because "AP" in the "chest standing position" is used infrequently and is different from the normal photographing direction, so a warning to the user is necessary. On the other hand, when "chest standing position" is input in the part setting section 71 and "PA" is input in the direction setting section 72, the user inputs "OFF" as the notification of the photographing support information 9a. This is because "PA" in the "chest standing position" is used frequently and is routine photographing, so a warning to the user is not necessary.

[0047] All possible combinations of imaging parts and imaging directions may be input in advance to the part setting unit 71 and the direction setting unit 72. In this case, the user inputs notification of imaging support information 9a corresponding to the imaging part and imaging direction from the notification necessity setting unit 73. Note that notification (ON or OFF) of the imaging support information 9a may be input in advance to the notification necessity setting unit 73 using statistics on the imaging frequency of the imaging direction or the like. For example, in the case of an imaging direction with a high imaging frequency, OFF is set in advance to the notification necessity setting unit 73. In the case of an imaging direction with a low imaging frequency, ON is set in advance to the notification necessity setting unit 73. At least one of the notification of the imaging part, imaging direction, and imaging support information 9a may be a pull-down type in which the user selects a specific item from a plurality of items prepared in advance. Also, the user may directly input character information such as the imaging direction.

[0048] [Example of table 23a] Next, a description will be given of the table 23a that reflects various pieces of information set on the setting screen 70. Fig. 5 shows an example of the configuration of the table 23a stored in the storage unit 23. In the table 23a, the shooting part, the shooting direction, the notification of the notification information, and the shooting support information 9a are associated with each other. The shooting part, the shooting direction, the notification of the notification information, and the shooting support information 9a in the table 23a can be configured by the input information set in the setting screen 70 described above. Note that, when the notification of the notification information is ON, the setting screen 70 may be configured to input and select a sentence that constitutes the shooting support information 9a. For example, in the setting screen 70, a plurality of fixed phrases that constitute the shooting support information 9a may be prepared in advance, and the user may be allowed to select a specific sentence.

[0049] Specifically, when the imaging part is "chest upright position", the imaging direction is "AP", and the notification of the notification necessity information is "ON", the imaging support information 9a below is associated and stored. The imaging support information 9a is, for example, a sentence to alert the user, such as "The imaging direction is different from usual. Please pay attention to the imaging direction." On the other hand, when the imaging part is "chest upright position", the imaging direction is "PA", and the notification of the notification necessity information is "OFF", the imaging support information 9a is not associated.

[0050] The notification of the imaging support information 9a may be set using a machine learning model (trained model) without using the setting screen 70 and the table 23a. The machine learning model may be, for example, a regression model such as polynomial regression, multiple regression, support vector regression, or random forest regression. The machine learning model may also be another model such as a neural network. The machine learning model is a model trained based on certain training data. The training data is a data set in which information including an imaging direction different from the normal imaging direction of each imaging part is used as input data, and imaging support information 9a output in the case of an imaging direction different from the normal imaging direction is used as correct output data. As a result, when an imaging direction different from the normal imaging direction of an imaging part is input, the machine learning model outputs imaging support information 9a corresponding to the imaging direction as estimated data.

[0051] [Example of operation of the imaging control device 2] FIG. 6 is a flowchart showing an example of the operation of the imaging control device 2 when capturing a radiographic image of the subject S.

[0052] Order information input by a doctor or the like is transmitted from the HIS / RIS 5 to the imaging control device 2. The communication unit 24 of the imaging control device 2 receives the order information. The user selects predetermined order information from the examination list displayed on the screen of the display unit 22 by operating the operation unit 21. The control unit 20 acquires the order information selected by the user (step S1).

[0053] When the control unit 20 acquires the predetermined order information, it causes the display unit 22 to display the photographing screen 80 (step S2).

[0054] FIG. 7 shows an example of the configuration of a shooting screen 80 displayed on the display unit 22 of the shooting control device 2. As shown in FIG. The imaging screen 80 is provided with an imaging selection section 81, a condition setting section 82, an image display area 83, a patient information display section 84, and an output button 85. The imaging selection section 81 displays, for example, order information selected in the examination list. The order information includes, for example, imaging details such as the imaging part and imaging direction, and thumbnail images showing the captured radiographic images. In FIG. 7, since the radiographic images have not yet been captured, no thumbnail images are displayed in the imaging selection section 81. The condition setting section 82 is provided with, for example, a button for setting imaging conditions for the radiographic images, a button for adjusting the captured radiographic images, and the like. The image display area 83 displays the radiographic images captured by the imaging device 1 based on the set imaging conditions, and the like.

[0055] When step S2 is completed, the process branches to step S3 and step S6. In this embodiment, the process from step S3 to step S5 and the process from step S6 are performed in parallel. Note that the process from step S3 to step S6 may be performed in serial order.

[0056] First, the process of step S3 will be described. The control unit 20 acquires the imaging region and imaging direction included in the order information selected by the imaging selection unit 81 (step S3). The patient enters the imaging room when called by a user, for example, a radiologist. At this stage, the patient has not yet started being positioned. The timing of the patient's entry is not limited to after the processing of step S3, and may be before the processing of step S3 as long as the patient's waiting time is not long.

[0057] The control unit 20 specifies notification availability information on whether or not to notify the imaging support information 9a based on the acquired imaging part and imaging direction (step S4). For example, the control unit 20 refers to the table 23a and acquires notification availability information on whether or not to notify the imaging support information 9a associated with the imaging part and imaging direction.

[0058] The control unit 20 judges whether the acquired notification availability information is ON or not (step S5). That is, the control unit 20 judges whether a predetermined condition for displaying the shooting support information 9a is satisfied or not. If the acquired notification availability information is not ON, that is, if the control unit 20 judges that the notification availability information is OFF, the control unit 20 proceeds to step S8. On the other hand, if the control unit 20 judges that the notification of the acquired notification availability information is ON, the control unit 20 proceeds to step S7.

[0059] Next, step S6 branched from step S2 will be described. When predetermined order information is selected by the photography selection unit 81 or the like, the control unit 20 sets photography conditions for each of the photography device 1 and the generation device 3 (step S6). The photography conditions include image reading conditions to be set for the photography device 1 and irradiation conditions to be set for the generation device 3. For example, the control unit 20 sets image reading conditions for the photography device 1 based on the body part to be photographed, the photography direction, etc. of the selected order information. The control unit 20 also sets irradiation conditions for the generation device 3 based on the body part to be photographed, the photography direction, etc. of the selected order information.

[0060] The imaging conditions may be set manually by the user. Specifically, the control unit 20 may set the image reading conditions received by the user through an input operation of the condition setting unit 82 to the imaging device 1. The control unit 20 may set the radiation irradiation conditions received by the user through an input operation of the operation panel of the generation device 3 to the generation device 3. When step S6 is completed, the process proceeds to step S7. Depending on conditions such as the patient's physique, the imaging conditions may be set after notification of imaging support information 9a (described later) and immediately before imaging.

[0061] After the photographing conditions are set and the notification availability information is ON, the control unit 20 notifies the photographing support information 9a (step S7). For example, the control unit 20 refers to the table 23a and acquires the photographing support information 9a associated with the photographing part, the photographing direction, and the notification availability information. Before starting positioning, the control unit 20 displays the acquired photographing support information 9a on the photographing screen 80 of the display unit 22. Note that, in practice, the control unit 20 can display the photographing support information 9a on the photographing screen 80 of the display unit 22 immediately after transitioning to the photographing screen 80. After checking the photographing support information 9a on the photographing screen 80, the user starts positioning the patient. Note that the photographing support information 9a may be displayed on the screen of the display device 26 in the photographing room, in addition to the display unit 22.

[0062] FIG. 8 shows an example of the shooting support information 9a displayed on the shooting screen 80 of the display unit 22. As shown in FIG. When the notification availability information is ON, the control unit 20 displays the photographing support information 9a in a part of the image display area 83. That is, when the photographing direction of the order information is different from the normal photographing direction, the control unit 20 displays the photographing support information 9a on the display unit 22 before starting positioning of the patient.

[0063] Specifically, when order information is input in which the imaging part is "chest upright position" and the imaging direction is "LR", the following imaging support information 9a is displayed on the imaging screen 80. The imaging support information 9a is, for example, a sentence saying "[Chest L→R] This is an unusual imaging direction. Please pay attention to the imaging direction." This allows the user to recognize that an unusual imaging direction has been input as order information before starting positioning of the patient.

[0064] 8, the photographing support information 9a is displayed in the lower left part of the photographing screen 80, but the display position is not limited to this. In addition to displaying the photographing support information 9a in the image display area 83, the photographing support information 9a may function as photographing support information 9b by changing the display of the order information of the photographing selection unit 81. For example, the photographing support information 9b is displayed by changing the color and size of the characters "Chest L→R" in the order information of the photographing selection unit 81 from those of the order information of normal photographing. The photographing support information 9b may be displayed with a font, brightness, etc., different from those of the order information of normal photographing. Furthermore, the shooting support information 9a may be something other than a display on the display unit 22. For example, the shooting control device 2 may be provided with a speaker that functions as a notification unit. The control unit 20 may output, as the shooting support information 9a, a sound effect or voice indicating that the shooting direction is different from a normal shooting direction from the speaker. The shooting support information 9a may be notified by either the display unit 22 or the speaker.

[0065] In this embodiment, the patient is positioned after the imaging support information 9a is displayed. By visually checking the imaging support information 9a displayed on the imaging screen 80, the user can determine the correct positioning according to the imaging direction of the order information. Specifically, when order information is input in which the imaging part is "chest upright position" and the imaging direction is "LR", positioning is performed as follows. The user guides the patient between the radiation source 33 of the generating device 3 and the imaging device 1 so that the right side of the patient, who is the subject S, faces the imaging device 1. When the photographing support information 9a is not displayed (step S5: NO), the photographing direction is normal, so that normal positioning is performed.

[0066] The control unit 20 determines whether or not the user has turned on the switch 32 (step S8). If the control unit 20 determines that the user has not turned on the switch 32, the process returns to step S8. In this case, the control unit 20 waits until the switch 32 is turned on. On the other hand, if the control unit 20 determines that the user has turned on the switch 32, the process proceeds to step S9. When the shooting support information 9a is displayed on the shooting screen 80, for example, a confirmation button may be provided for the user to respond as to whether or not he or she has confirmed the shooting support information 9a. In this case, the control unit 20 may proceed to the next operation, for example, turning on the switch 32, when the user selects the confirmation button.

[0067] The control unit 20 controls the imaging device 1, the generating device 3, etc. to capture a radiographic image of the subject S (step S9). The generating device 3 irradiates radiation R to the imaging region of the subject S. The imaging device 1 detects the radiation R that has passed through the subject S from the generating device 3, and generates image data showing the imaging region based on the detected radiation R. The imaging device 1 transmits the generated image data to the imaging control device 2. The control unit 20 of the imaging control device 2 displays a radiographic image based on the image data received from the imaging device 1 in the image display area 83 of the imaging screen 80.

[0068] The control unit 20 adds patient information, examination information, etc. to image data based on the final radiographic image and outputs the image data to the image management device 4 (step S10). The examination information includes, for example, an examination ID, examination date, imaging area, imaging direction, etc. The final radiographic image may include, for example, predetermined image adjustments. Through this series of steps, the radiography control process for the patient's radiographic image is completed. When radiography is completed, the patient is guided by the user to leave the radiography room.

[0069] According to this embodiment, before starting positioning of the patient, the imaging support information 9a indicating that the imaging direction of the order information is different from the normal imaging direction is displayed on the imaging screen 80. This allows the user to recognize that an imaging direction different from the normal imaging direction has been input as the order information before starting positioning of the patient. As a result, it is possible to reliably prevent mistakes in the imaging direction during positioning, and it is possible to shorten the work time compared to performing positioning again. Furthermore, it is possible to reduce the burden on the patient compared to performing re-positioning.

[0070] In addition, in the conventional technology, when the imaging direction in the order information is different from the normal imaging direction, the user may mistake the imaging direction for the normal imaging direction. When radiography is performed with incorrect positioning, re-imaging with correct positioning according to the imaging direction in the order information is required. In this case, there is a problem that the radiation dose of the patient increases. In contrast, according to the present embodiment, even if the imaging direction in the order information is different from the normal imaging direction, the user can confirm that the imaging direction is a less frequent one by the imaging support information 9a. As a result, by performing radiography with correct positioning, re-imaging can be reduced, and the radiation dose of the patient can be reduced.

[0071] [Another embodiment 1] Next, a case where the imaging site of the input order information is a site with a very low imaging frequency will be described. Note that the description will focus on the differences from the above embodiment, and the description of the points in common with the above embodiment will be omitted. In addition, in the description of another embodiment 1, the parts in common with the above embodiment will be described with the same reference numerals.

[0072] FIG. 9 shows an example of the configuration of an imaging screen 80 displayed on the display unit 22 when the imaging region included in the order information is an imaging region that is imaged very infrequently. When the imaging site included in the order information is an imaging site that is very infrequently photographed, the control unit 20 displays the imaging support information 9a on the imaging screen 80. Specifically, when the order information 81a in which the imaging site that is infrequently photographed is "abdominal lateral surface" is input, the following imaging support information 9a is displayed on the imaging screen 80. The imaging support information 9a is, for example, a sentence that reads, "[Abdominal lateral surface] is a procedure that is rarely photographed. Pay attention to positioning." In addition, as the imaging support information 9a, the color, font, size, brightness, etc. of the characters of "abdominal lateral surface" in the order information 81a selected by the imaging selection unit 81 may be displayed differently from other order information. In other words, the characters of "abdominal lateral surface" in the selected order information 81a may be highlighted to be more noticeable than the characters of other order information.

[0073] Whether or not the region corresponds to a region that is photographed very infrequently may be determined as follows. The control unit 20 acquires the imaging ratio of each imaging site based on the imaging site of the radiation image captured in the past. The imaging ratio of each imaging site may be set for each facility, each radiologist, or each requesting department. Next, the control unit 20 acquires the imaging ratio of the imaging site of the calculated order information, and judges whether the imaging ratio of the acquired imaging site is equal to or less than a preset threshold. Next, the control unit 20 judges the imaging site that is equal to or less than the threshold as an imaging site with a low frequency, and displays the imaging support information 9a described above on the imaging screen 80. Note that it may be judged whether the imaging site of the order information is low in frequency by using a trained model capable of estimating an imaging site with a low frequency obtained by machine learning.

[0074] Next, a description will be given of a case where the imaging support information 9c is displayed on the examination list 100. When the imaging part of the order information is a low-frequency imaging part, the control unit 20 displays the imaging support information 9c on the examination list 100 in addition to the imaging screen 80.

[0075] 10 shows an example of the imaging support information 9c displayed in the examination list 100 of the display unit 22. The examination list 100 displays a list of imaging order information for which examinations are pending. The examination list 100 displays at least patient information 101 including a patient ID and the like, imaging body part information 102, and imaging count information 103 in association with each other. In this embodiment, an imaging body part that is imaged very infrequently in the examination list 100 is set as order information 105.

[0076] The control unit 20 displays the photographing support information 9c at a position adjacent to the patient ID of the order information 105 including the region to be photographed very infrequently. The photographing support information 9c is, for example, an icon indicating a caution mark. The photographing support information 9c may be characters or the like other than an icon. The order information 105 may be highlighted relative to other order information by changing the color, size, or brightness of the icon and characters. The photographing support information 9c may also output a voice or sound effect from a speaker indicating that the region to be photographed in the order information 105 is very infrequently photographed.

[0077] [Another embodiment 2] Next, there are cases where a technician in charge of capturing a radiation image and a technician in charge of adjusting the captured radiation image work using the same imaging control device 2. Such imaging is also called double focus imaging.

[0078] FIG. 11 shows an example of a shooting screen 80 displayed on the display unit 22 during double focus shooting. For example, three pieces of radiography order information for the same patient are displayed in the radiography selection section 81 of the radiography screen 80. Of these, radiation imaging has been completed for order information 81b in which the radiography part is "chest upright position" and the radiography direction is "AP". The radiographic image for which imaging has been completed is displayed in the image display area 83 of the radiography screen 80. Furthermore, thumbnail images of the radiographic images that have been captured are displayed in the order information 81b of the radiography selection section 81.

[0079] When a shooting direction different from the normal shooting direction is specified, the shooting support information 9a is displayed on the shooting screen 80 of the display unit 22 as described above. Therefore, the shooting technician can recognize that the current shooting direction is different from the normal shooting direction. On the other hand, the adjustment technician is in charge of image adjustment, so there are cases where he or she cannot confirm the shooting support information 9a on the shooting screen 80 at the time of shooting. Therefore, as shown in FIG. 11, the control unit 20 causes the shooting support information 9a to continue to be displayed in the image display area 83 even during image adjustment after the radiographic image is shot. In this case, the control unit 20 may hide the shooting support information 9a after a predetermined time has elapsed since the transition to image adjustment. As another method, the control unit 20 may hide the shooting support information 9a when a click on the window of the shooting support information 9a or the like is received.

[0080] Furthermore, in the case of double focus photography, the following problem also occurs. On the photography screen 80, the adjustment engineer may be performing image adjustment of the previous order information. Therefore, even if the photography direction of the next order information 81c is different from the normal photography direction, the photography support information 9a cannot be displayed on the photography screen 80. Therefore, the control unit 20 displays photography support information 9d, which indicates that attention should be paid to the photography direction of the next order information 81c, in the display area 86 above the photography selection unit 81. The photography support information 9d is, for example, the phrase "Pay attention to the photography direction."

[0081] [Other embodiment 3] A medical image capturing system 10B according to another embodiment 3 controls display and non-display of the capturing support information 9a using a detection result of the movement of a patient who has entered the capturing room. In addition, in another embodiment 3, differences from the medical image capturing system 10A of the above embodiment will be mainly described, and a description of points in common with the above embodiment will be omitted. In addition, in the description of another embodiment 3, parts in common with the above embodiment will be described with the same reference numerals.

[0082] FIG. 12 is a diagram showing a schematic configuration of a medical image capturing system 10B. The medical image capturing system 10B includes a radiation image capturing device 1, an imaging control device 2, a radiation generating device 3, an image management device 4, an HIS / RIS 5, and a detection unit 6.

[0083] The detection unit 6 is disposed in the imaging room, for example, at a position adjacent to the radiation source 33 of the generator 3. The detection unit 6 is connected to the imaging control device 2 and the like via a network N. The detection unit 6 detects the movement of the patient who has entered the imaging room, and supplies the detected detection signal to the imaging control device 2. For the detection unit 6, for example, an optical camera or a motion sensor is used. Specifically, the detection unit 6 detects the movement of the patient when moving from entering the examination room to the imaging position, the movement when changing the positioning, and the like. The control unit 20 of the imaging control device 2 obtains information on the movement of the patient based on the detection result of the detection unit 6. This allows the control unit 20 to recognize whether the state is before the start of positioning or the state when the positioning is being changed.

[0084] The control unit 20 displays the imaging support information 9a on the imaging screen 80, etc., after the previous radiation imaging is completed and transition is made to the imaging screen 80 of the next radiation image. In this case, the control unit 20 may display the imaging support information 9a on the imaging screen 80, etc., after confirming whether positioning has not yet started based on the detection result of the detection unit 6. This allows the control unit 20 to call the user's attention that the imaging direction of the order information is different from the normal imaging direction before the patient positioning starts. Furthermore, when the control unit 20 determines that the positioning is being changed based on the detection result of the detection unit 6, it may hide the imaging support information 9a on the imaging screen 80, etc. This is because, after the patient positioning starts, the imaging support information 9a for calling attention to positioning is often not needed. [Explanation of symbols]

[0085] 10A, 10B Medical imaging system 20 Control section 23 Memory section 23a Table 26 Display device (external device, photographing device)

Claims

1. an acquisition unit for acquiring imaging order information including information regarding a positioning of a patient; a determination unit that determines whether the positioning of the patient indicated by the information on the positioning of the patient included in the acquired radiography order information corresponds to information on the positioning of the patient stored in advance, and that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently photographed; a notification unit that notifies, before starting positioning of the patient based on a determination result of the determination unit, radiography support information for drawing attention that the positioning of the patient indicated by information on the positioning of the patient included in the radiography order information is a positioning with a statistically low frequency of radiography; and A medical imaging system comprising:

2. The radiography order information includes information on a radiography direction of a radiography part. The medical imaging system according to claim 1 .

3. The imaging support information is information for calling attention to the imaging direction of the imaging part.

3. A medical imaging system according to claim 1.

4. A setting unit that enables the information regarding the positioning of the patient to be set in advance is provided.

3. A medical imaging system according to claim 1.

5. The setting unit can set, as the information, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other.

5. The medical imaging system according to claim 4.

6. The information on the imaging direction is an X-ray irradiation direction in a predetermined imaging direction. The medical imaging system according to claim 2 .

7. a storage unit that stores information on the photographing direction and notification necessity information on whether or not to notify the photographing support information in association with each other; and a determination unit that determines notification necessity information corresponding to the information on the photographing direction stored in the storage unit based on the information on the photographing direction acquired as the photographing order information by the acquisition unit.

3. A medical imaging system according to claim 1.

8. An acquisition unit that acquires radiography order information including information regarding a patient's positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; a notification unit that notifies imaging support information before starting positioning of the patient when the imaging order information satisfies the predetermined condition; A setting unit that enables the predetermined condition to be set, the setting unit is capable of setting, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. Medical imaging system.

9. An acquisition unit that acquires radiography order information including information regarding a patient's positioning; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; a notification unit that notifies imaging support information before starting positioning of the patient when the imaging order information satisfies the predetermined condition; a storage unit that stores information on the photographing direction and notification necessity information on whether or not to notify the photographing support information in association with each other; a determination unit that determines notification necessity information corresponding to the information of the photographing direction stored in the storage unit based on the information of the photographing direction acquired as the photographing order information by the acquisition unit, The determination unit determines whether the predetermined condition is satisfied based on the specified notification necessity information, The notification unit notifies the photographing support information based on the specified notification necessity information when a predetermined condition is satisfied. Medical imaging system.

10. an acquisition unit for acquiring imaging order information including information regarding a positioning of a patient; a determination unit that determines whether the positioning of the patient indicated by the information on the positioning of the patient included in the acquired radiography order information corresponds to information on the positioning of the patient stored in advance, and that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently photographed; a notification unit that notifies, before starting positioning of the patient based on a determination result of the determination unit, radiography support information for drawing attention that the positioning of the patient indicated by information on the positioning of the patient included in the radiography order information is a positioning with a statistically low frequency of radiography; and An imaging control device comprising:

11. The notification unit outputs the shooting support information to an external device. The imaging control device according to claim 10.

12. The external device is a photographing device. The imaging control device according to claim 11.

13. A setting unit that allows the information regarding the positioning of a patient to be stored in advance to be set, The setting unit can set, as the information, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. The imaging control device according to claim 11 or 12.

14. The photographing order information includes photographing direction information, The information on the imaging direction is a radiation irradiation direction in a predetermined imaging direction. The imaging control device according to claim 11 or 12.

15. An acquisition unit for acquiring radiography order information including information regarding a positioning of a patient; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; a notification unit that notifies imaging support information before starting positioning of the patient when the imaging order information satisfies the predetermined condition; A setting unit that enables the predetermined condition to be set, the setting unit is capable of setting, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. Shooting control device.

16. acquiring imaging order information including information regarding a positioning of a patient; a determining step of determining whether the positioning of the patient indicated by the information on the positioning of the patient included in the acquired radiography order information corresponds to information on the positioning of the patient stored in advance, that the positioning of the patient is a positioning that is statistically infrequently photographed; a notification step of notifying, before starting positioning of the patient based on a result of the determination, radiography support information for calling attention to the fact that the positioning of the patient indicated by information on the positioning of the patient included in the radiography order information is a positioning with a statistically low frequency of radiography; A medical image capturing method comprising the steps of:

17. Computer, an acquisition unit for acquiring imaging order information including information regarding the positioning of a patient; a determination unit that determines whether the positioning of the patient indicated by the information on the positioning of the patient included in the acquired radiography order information corresponds to information on the positioning of the patient stored in advance, and that the positioning of the patient indicated by the information on the positioning of the patient included in the radiography order information is a positioning that is statistically infrequently photographed; a notification unit that notifies, before starting positioning of the patient based on a determination result of the determination unit, imaging support information for drawing attention that the positioning of the patient indicated by information on the positioning of the patient included in the imaging order information is a positioning with a statistically low imaging frequency; A program that functions as a

18. The notification unit outputs the shooting support information to an external device.

18. The program according to claim 17.

19. The external device is a photographing device.

20. The program of claim 18.

20. A setting unit that allows the information regarding the positioning of a patient to be stored in advance to be set, The setting unit can set, as the information, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other.

20. A program according to claim 18 or 19.

21. The photographing order information is information on a photographing direction, The information on the imaging direction is a radiation irradiation direction in a predetermined imaging direction.

20. A program according to claim 18 or 19.

22. Computer, an acquisition unit for acquiring imaging order information including information regarding the positioning of a patient; a determination unit that determines whether the acquired photographing order information satisfies a predetermined condition; a notification unit that notifies imaging support information before starting positioning of the patient when the imaging order information satisfies the predetermined condition; A setting unit that can set the predetermined condition, the setting unit is capable of setting, as the predetermined condition, information on a shooting direction and notification necessity information on whether or not to notify the shooting support information in association with each other. program.

Images