Medical diagnostic apparatus, control method for medical diagnostic apparatus, and control program for medical diagnostic apparatus

Abstract

To provide a medical diagnostic apparatus that controls the height of a bed on the basis of a subject analysis using an image with the subject.SOLUTION: A medical diagnostic apparatus comprises a processor. The processor acquires a subject image that is an image of a subject placed on a bed, acquires subject analysis information by analyzing the acquired subject image, and executes processing for controlling the height of the bed on the basis of the subject analysis information.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a medical diagnostic apparatus, a control method thereof, and a control program thereof.

Background Art

[0002] In medical diagnostic apparatuses such as X-ray CT apparatuses and MRI apparatuses, a method has been disclosed in which a height at which it is easy to get on and off is calculated according to the height of a subject, and the height of a hospital bed is changed based on the calculation result (Patent Documents 1, 2, etc.).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Depending on the build, condition, age, etc. of the subject, there are differences in the height at which it is easy to get on and off the hospital bed. However, in the prior art, the state of the subject has not been analyzed using an image of the subject, and the height of the hospital bed of the medical diagnostic apparatus has not been controlled based on the analysis result.

[0005] The present disclosure has been made in view of the above points, and an object thereof is to provide a medical diagnostic apparatus, a control method thereof, and a control program thereof that control the height of a hospital bed based on an analysis result of a subject using an image of the subject.

Means for Solving the Problems

[0006] The medical diagnostic device according to the first aspect of the present disclosure includes a processor, and the processor acquires a subject image which is an image of a subject placed on a hospital bed, analyzes the acquired subject image to obtain subject analysis information, and based on the subject analysis information, executes a process of controlling the height of the hospital bed.

[0007] The medical diagnostic device according to the second aspect of the present disclosure is the medical diagnostic device according to the first aspect, wherein the subject image is a plurality of optical images obtained by imaging the subject from a plurality of directions, and the processor analyzes the plurality of optical images to obtain the subject analysis information for each of the optical images, and based on the plurality of subject analysis information, controls the height of the hospital bed.

[0008] The medical diagnostic device according to the third aspect of the present disclosure is the medical diagnostic device according to the first aspect or the second aspect, wherein the subject analysis information includes information regarding the physical characteristics of the subject.

[0009] The medical diagnostic device according to the fourth aspect of the present disclosure is the medical diagnostic device according to any one of the first aspect to the third aspect, wherein the subject analysis information includes information regarding a support member for supporting the subject that is being used for the subject.

[0010] The medical diagnostic device according to the fifth aspect of the present disclosure is the medical diagnostic device according to the fourth aspect, and when the processor recognizes that the subject is placed on a conveyance tool different from the medical diagnostic device as information regarding the support member, the processor executes a process of controlling the height of the hospital bed to match the height of the conveyance tool.

[0011] The medical diagnostic device according to the sixth aspect of the present disclosure is the medical diagnostic device according to any one of the first aspect to the fifth aspect, and the processor executes a process of controlling the height of the hospital bed at least either when the subject gets on the hospital bed or when the subject gets off the hospital bed.

[0012] The medical diagnostic apparatus according to the seventh aspect of the present disclosure is the medical diagnostic apparatus according to the sixth aspect, wherein the processor controls the examination of the subject, and based on the progress information of the examination, determines when the subject gets on the stretcher and when the subject gets off the stretcher, and executes a process of controlling the height of the stretcher.

[0013] The medical diagnostic apparatus according to the eighth aspect of the present disclosure is the medical diagnostic apparatus according to the first to seventh aspects, wherein the processor has a readjustment mode that enables the height of the stretcher to be readjusted after automatically controlling the height of the stretcher.

[0014] The medical diagnostic apparatus according to the ninth aspect of the present disclosure is the medical diagnostic apparatus according to the eighth aspect, wherein the processor further acquires an optical image of an operator operating the height of the stretcher, and in the readjustment mode, recognizes the gesture of the operator from the acquired optical image, and executes a process of readjusting the height of the stretcher based on the gesture.

[0015] The medical diagnostic apparatus according to the tenth aspect of the present disclosure is the medical diagnostic apparatus according to the eighth aspect, wherein the processor further acquires the voice of an operator operating the height of the stretcher, and in the readjustment mode, recognizes the acquired voice, and executes a process of readjusting the height of the stretcher based on the voice.

[0016] The medical diagnostic apparatus according to the eleventh aspect of the present disclosure is the medical diagnostic apparatus according to the eighth aspect, wherein the processor executes a process of readjusting the height of the stretcher based on an operation of changing the height of the stretcher in the readjustment mode.

[0017] The medical diagnostic apparatus according to the twelfth aspect of the present disclosure is the medical diagnostic apparatus according to the eighth aspect, wherein the processor executes a process of readjusting the height of the stretcher by applying a preset offset value in the readjustment mode.

[0018] The medical diagnostic device according to the 13th aspect of the present disclosure is the medical diagnostic device according to the 1st aspect, wherein the processor executes a process of controlling the height of the hospital bed based on information at the time of a past examination of the subject.

[0019] The medical diagnostic device according to the 14th aspect of the present disclosure is the medical diagnostic device according to the 13th aspect, wherein the processor analyzes an optical image of the subject taken as the subject image and a past diagnostic image obtained at the time of a past examination of the subject to obtain the subject analysis information, and executes a process of controlling the height of the hospital bed based on the subject analysis information obtained by the analysis of the optical image and the past diagnostic image.

[0020] The medical diagnostic device according to the 15th aspect of the present disclosure is the medical diagnostic device according to the 13th aspect, wherein the processor executes a process of controlling the height of the hospital bed based on information on the height of the hospital bed at the time of a past examination of the subject.

[0021] A method for controlling a medical diagnostic device according to the 16th aspect of the present disclosure is that a processor acquires a subject image which is an image of a subject placed on a hospital bed, analyzes the acquired subject image to obtain subject analysis information, and executes a process of controlling the height of the hospital bed based on the subject analysis information.

[0022] A control program for a medical diagnostic device according to the 17th aspect of the present disclosure causes a computer to acquire a subject image which is an image of a subject placed on a hospital bed, analyze the acquired subject image to obtain subject analysis information, and execute a process of controlling the height of the hospital bed based on the subject analysis information.

Advantages of the Invention

[0023] According to the present disclosure, it is possible to provide a medical diagnostic device, a method for controlling a medical diagnostic device, and a control program for a medical diagnostic device that control the height of a hospital bed based on an analysis result of a subject using an image in which the subject is shown.

Brief Description of the Drawings

[0024]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0025] Hereinafter, an example of an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, the same or equivalent components and parts are given the same reference numerals. Also, the dimensional ratios in the drawings are exaggerated for the convenience of explanation and may be different from the actual ratios.

[0026] FIG. 1 is a diagram showing a schematic configuration of a medical diagnostic device according to the present embodiment. In the present embodiment, the configuration of one embodiment of an X-ray CT device is shown as the medical diagnostic device. Note that the medical diagnostic device of the present disclosure is not limited to an X-ray CT device and can be applied to other medical diagnostic devices as long as it is a device in which the hospital bed moves up and down.

[0027] The medical diagnostic device according to the present embodiment includes a scanner 1, a hospital bed 3, and a console 4.

[0028] Scanner 1 is the part that performs CT scans. Scanner 1 includes a gantry 11, a rotating plate 12 having an opening in the central part and rotatably supported by the gantry 11, an X-ray tube device 13 fixed to the rotating plate 12, a collimator 14 provided at the X-ray radiation port part of the X-ray tube device 13, an X-ray detector 15 disposed facing the X-ray tube device 13 with the opening of the rotating plate 12 in between, and a rotating plate drive device 17 provided on the gantry 11. Further, the rotating plate 12 of the scanner 1 includes a collimator control device 18 that controls the collimator 14 to change the X-ray irradiation field, a rotating plate drive control device 19 that performs drive control of the rotating plate drive device 17, an X-ray high voltage generator 20 that supplies power for X-ray generation to the X-ray tube device 13 and controls X-ray generation conditions, a data collection device 16 that collects the output of the X-ray detector 15, and a data transmission device 21 that transmits the data collected by the data collection device 16. Note that the supply of power and control signals to each unit provided on the rotating plate 12 and the extraction of data from each unit provided on the rotating plate 12 are performed via a slip ring (not shown) provided between the gantry 1 and the rotating plate 12.

[0029] The examination table 3 moves the subject between the imaging preparation position and the imaging position. The subject is placed on the top plate 31. It has a vertical movement mechanism and a front-back movement mechanism of the top plate 31, which are not shown in the figure. And on the examination table 3, an examination table control device 32, a top plate vertical movement control device 33, and a top plate front-back movement control device 34 are provided to control the operations of the vertical movement mechanism and the front-back movement mechanism of the top plate 31.

[0030] The console 4 controls a medical diagnostic device that is an X-ray CT device. The console 4 includes a CPU (Central Processing Unit) 41, a ROM (Read Only Memory) 42, a RAM (Random Access Memory) 43, and a storage 44. Further, the console 4 may further include an input unit 45 and a display unit 46.

[0031] One example of the processor, the CPU 41, is a central processing unit that executes various programs and controls each part. That is, the CPU 41 reads a program from the ROM 42 or the storage 44 and executes the program using the RAM 43 as a work area. The CPU 41 performs control of each of the above configurations and various arithmetic processes according to the program recorded in the ROM 42 or the storage 44. In the present embodiment, the ROM 42 or the storage 44 stores a control program for the medical diagnostic apparatus that controls the height of the examination table 3 of the medical diagnostic apparatus.

[0032] The ROM 42 stores various programs and various data. The RAM 43 temporarily stores a program or data as a work area. The storage 14 is composed of a storage device such as an HDD (Hard Disk Drive), an SSD (Solid State Drive), or a flash memory, and stores various programs including an operating system and various data.

[0033] The input unit 45 includes a pointing device such as a mouse and a keyboard, and is used to perform various inputs. The input unit 45 includes a table operation unit that operates the height of the table 3.

[0034] The display unit 46 is, for example, a liquid crystal display, and displays various information. The display unit 46 may adopt a touch panel method and function as the input unit 45.

[0035] In the present embodiment, the console 4 is connected to the hospital information system 5 of the hospital where the X-ray CT apparatus is installed. The hospital information system 5 includes a patient information management system 51 and an examination reservation system 52.

[0036] The patient information management system 51 is a database of personal information, medical treatment data, examination image data, examination data, medication data, etc. of patients who have received medical treatment at the hospital in the past. The patient's personal information includes personal identification information such as name, ID, date of birth, age, gender, etc., as well as physical information such as height and weight, and past examination dates. These personal information are input into the system when the subject visits the hospital as a patient and receives medical treatment. Note that the height and weight of the patient are collected by the patient's self-report on the questionnaire or by actual measurement, and are input into the patient information management system 51. In addition, medical treatment data, examination image data, examination data, and medication data are input into the patient information management system each time the patient receives medical treatment, and an in-hospital patient database is created.

[0037] The examination reservation system 52 creates the examination schedule for that day based on the information stored or written in the patient information management system for each system of the medical diagnostic devices equipped in the hospital, and distributes the created examination schedule to each system as data. The examination schedule includes the order of patients who will receive the examination on that day in the medical diagnostic device, and the personal identification information and physical information of each patient. Note that the content of the examination reservation system 52 is sequentially updated according to the progress of the medical treatment on that day, and the updated data is transmitted to each system every time it is updated.

[0038] The console 4 uses the optical image captured by the imaging device 6 to control the height of the top plate 31 of the hospital bed 3. The imaging device 6 is installed in the room where the medical diagnostic device is installed, and is provided at a position where it can capture the posture of the subject receiving the examination. The position where the imaging device 6 is installed is preferably a position where there is no object blocking the view between the subject and the device, such as the ceiling or wall of the room, or the gantry 11 of the scanner 1. Also, the number of imaging devices 6 may be one, but a plurality of them may be installed so that the posture of the subject can be captured from different directions. The control process of the hospital bed 3 using the optical image captured by the imaging device 6 by the console 4 will be described in detail later.

[0039] When executing the control program of the above medical diagnostic apparatus, the console 4 realizes various functions by using the above hardware resources. The functional configuration realized by the console 4 will be described.

[0040] Figure 2 is a block diagram showing an example of the functional configuration of the console 4.

[0041] As shown in Figure 2, the console 4 has, as a functional configuration, a bed control unit 401, an acquisition unit 402, an image analysis unit 403, and an examination control unit 404. Each functional configuration is realized by the CPU 41 reading out and executing the control program of the medical diagnostic apparatus stored in the ROM 42 or the storage 44.

[0042] The bed control unit 401 generates a control signal for controlling the height of the top plate 31 of the bed 3. The control signal generated by the bed control unit 401 is sent to the bed control device 32 of the bed 3. The bed control device 32 changes the height of the top plate 31 based on the control signal. When the subject is placed on the bed 3, the bed control unit 401 changes the height of the top plate 31 of the bed 3 to a height appropriate for the examination by the scanner 1.

[0043] The acquisition unit 402 acquires a subject image that is an image of the subject taken. The subject image is an optical image obtained by the imaging device 6 imaging the subject, but the subject image may further be a past diagnostic image obtained at the time of the subject's past examination. The past diagnostic image may be an image obtained by a CT examination, an MRI examination, or the like. The acquisition unit 402 may acquire the past diagnostic image of the subject from, for example, the patient information management system 51.

[0044] The image analysis unit 403 analyzes the subject image acquired by the acquisition unit 402 to obtain subject analysis information. The image analysis unit 403 determines whether a subject is shown in the optical image captured by the imaging device 6. If the subject is shown, it obtains subject analysis information. The image analysis unit 403 may determine whether a subject is shown in the optical image captured by the imaging device 6, for example, by recognizing whether a face other than a pre-registered hospital staff is recognized, whether it is recognized that an examination gown is worn, or whether a person confirmed by an engineer is recognized. Also, the image analysis unit 403 may recognize a person who seems to be a subject using the result of machine learning performed in advance.

[0045] The subject analysis information includes information regarding physical characteristics such as height, weight, waist height, foot length, physical condition, etc. For example, the image analysis unit 403 estimates the physical condition of the subject based on the subject's face color, walking gait (if the stride is narrow, it is estimated that the physical condition is poor), posture (if the waist is bent, it is estimated that the physical condition is poor), etc. Also, the subject analysis information includes information regarding a support member used for supporting the subject, for example. The support member is, for example, a gait belt, a cane, a wheelchair, a stretcher, etc. The image analysis unit 403 may obtain subject analysis information from the subject image using a learned model generated by, for example, performing machine learning in advance using the subject image. Obtaining subject analysis information from the subject image using a learned model means inputting the subject image into the learned model and obtaining subject analysis information based on the output from the learned model.

[0046] The bed control unit 401 controls the height of the top plate 31 of the bed 3 so that the subject can easily get on the top plate 31, using the subject analysis information obtained by analyzing the subject image by the image analysis unit 403. The bed control unit 401 controls the height of the top plate 31, for example, based on the height of the subject's body, the height of the waist, and the length of the legs. Also, when the subject is using a support member, for example, the bed control unit 401 may control the height of the top plate 31 to be lower than the height based on the height of the subject's body, the height of the waist, and the length of the legs. Further, when the weight of the subject is heavier than a specified ratio with respect to the standard value, for example, the bed control unit 401 may control the height of the top plate 31 to be lower than the height based on the height of the subject's body, the height of the waist, and the length of the legs. Also, when the age of the subject is equal to or greater than a predetermined value, for example, the bed control unit 401 may control the height of the top plate 31 to be lower than the height based on the height of the subject's body, the height of the waist, and the length of the legs. Further, when the physical condition of the subject seems to be poor, for example, the bed control unit 401 may control the height of the top plate 31 to be lower than the height based on the height of the subject's body, the height of the waist, and the length of the legs.

[0047] By the bed control unit 401 controlling the height of the top plate 31 of the bed 3 using the subject analysis information, the medical diagnostic apparatus can set the height of the top plate 31 so that the subject can easily get on it.

[0048] When a plurality of imaging devices 6 are installed, the image analysis unit 403 may obtain subject analysis information using a plurality of subject images captured by each imaging device 6. In this case, the bed control unit 401 may control the height of the top plate 31 of the bed 3 based on the reliability of the subject analysis information obtained by analyzing each subject image. For example, when comparing the subject analysis information obtained by analyzing the subject image captured by the imaging device 6 installed on the ceiling with the image analysis unit 403 and the subject analysis information obtained by analyzing the subject image captured by the imaging device 6 installed on the wall with the image analysis unit 403, if the reliability of the subject analysis information obtained from the subject image captured by the imaging device 6 installed on the wall is higher, the bed control unit 401 may use the subject analysis information obtained from the subject image captured by the imaging device 6 installed on the wall to control the height of the top plate 31 of the bed 3. Note that even if subject analysis information is obtained from subject images captured by the same imaging device 6, the reliability value may vary depending on the situation of the subject. For example, the reliability value of the subject analysis information may vary depending on whether the subject is standing, sitting, or lying down. Therefore, by controlling the height of the top plate 31 of the bed 3 based on the reliability value of the subject analysis information, the image analysis unit 403 can perform appropriate control of the height of the top plate 31 of the bed 3 according to the situation of the subject.

[0049] As a result of the image analysis unit 403 analyzing the subject image, if the subject analysis information includes that the subject is sitting in a wheelchair, the bed control unit 401 may use the subject analysis information obtained from the subject image captured by the imaging device 6 installed on the wall to control the height of the top plate 31 of the bed 3. When the subject is sitting in a wheelchair, it is difficult to recognize the length of the subject's feet and the height of the waist in the optical image captured by the imaging device 6 installed on the ceiling. Therefore, when the subject is sitting in a wheelchair, the image analysis unit 403 may obtain subject analysis information using the subject image captured by the imaging device 6 installed at a position where imaging can be performed from the side, such as a wall or a pedestal 11.

[0050] If the subject analysis information includes that the subject is placed on a carrier (e.g., a stretcher) different from the medical diagnostic apparatus as a result of the subject image being analyzed by the image analysis unit 403, the bed control unit 401 may control the height of the top plate 31 of the bed 3 to match the height of the carrier.

[0051] The examination control unit 404 controls the examination of the subject by the medical diagnostic apparatus. When the examination control unit 404 determines to start a predetermined examination based on the progress information of the examination in the medical diagnostic apparatus, it moves the bed 3 into the turntable 12. Further, when the examination control unit 404 determines to end a predetermined examination based on the progress information of the examination in the medical diagnostic apparatus, it moves the bed 3 out of the turntable 12.

[0052] The bed control unit 401 determines the timing when the inspection is completed, that is, the timing when the bed 3 moves outside the turntable 12 and the subject gets off the bed, and controls the height of the top plate 31 of the bed 3 so that the subject can easily get off the bed 3. Whether the inspection is completed may be determined by the inspection control unit 404 based on the progress information of the inspection, or the image analysis unit 403 may determine from the optical image captured by the imaging device 6 that the subject has come out outside the turntable 12 while lying on the bed, or the bed control unit 401 may detect and determine the weight of the object placed on the bed 3. The bed control unit 401 detects the weight of the object placed on the bed 3, and if the weight of the object placed on the bed 3 is about the weight of a person, it determines that a person is placed on the bed 3. When the weight of the object placed on the bed 3 is about the weight of a human (for example, 50 to 80 kilograms) and the bed 3 comes out from the turntable 12, the inspection control unit 404 determines that the inspection of the subject is completed. In this case, the bed control unit 401 controls the height of the top plate 31 of the bed 3. On the other hand, if the bed control unit 401 detects that the weight of the object on the bed 3 is light, the inspection control unit 404 determines that it is before the inspection of the subject is started. In that case, the bed control unit 401 controls the height of the top plate 31 of the bed 3 so that the subject can easily get on the bed 3. Also, depending on the content of the inspection using the medical diagnostic device, there may be a case where the bed 3 is taken out of the gantry 11 once during the inspection and the subject gets off the bed 3. In that case, the bed control unit 401 may control the height of the top plate 31 of the bed 3 when the bed 3 moves outside the turntable 12 even during the inspection, not at the end of the inspection.

[0053] Even if the bed control unit 401 controls the height of the top plate 31 of the bed 3 according to the subject using the subject analysis information, there may actually be a possibility that the height does not match the subject. Therefore, the bed control unit 401 may have a readjustment mode that allows the height of the top plate 31 of the bed 3 to be readjusted after automatically controlling the height of the top plate 31 of the bed 3.

[0054] When the bed control unit 401 detects a predetermined operation of the operator, it enters the readjustment mode triggered thereby. Examples of the detection of the predetermined operation include detection of a predetermined gesture of the operator from an optical image captured by the imaging device 6, detection of a predetermined voice command of the operator by a microphone installed at a predetermined location, detection of the operation of a height operation unit by which the operator operates the height of the bed 3, and the like. The microphone may be installed independently or may be installed integrally with the imaging device 6. The voice command may be acquired by the acquisition unit 402. Further, the height operation unit for operating the height of the bed 3 may be provided, for example, as the input unit 46, and may be a foot switch, a hand switch, a switch provided beside the bed 3, a virtual switch projected on the wall surface, or the like.

[0055] When the bed control unit 401 enters the readjustment mode, it readjusts the height of the top plate 31 of the bed 3 based on a predetermined operation of the operator. Examples of the predetermined operation include a predetermined gesture operation of the operator. The gesture may be, for example, one indicating upward or downward with a finger, and while the gesture continues, the bed control unit 401 moves the top plate 31 of the bed 3 in the direction of the gesture. Further, examples of the predetermined operation include a predetermined voice command of the operator. The voice command may be, for example, "○ centimeters higher" or "○ centimeters lower", or may be "a little higher" or "a little lower". The bed control unit 401 moves the top plate 31 of the bed 3 based on the voice command. Further, examples of the predetermined operation include the operation of the height operation unit by the operator. The bed control unit 401 moves the top plate 31 of the bed 3 according to the operation of the height operation unit. Further, when the bed control unit 401 enters the readjustment mode, it may change the height of the top plate 31 of the bed 3 by applying a predetermined offset value. Further, when a non-specific voice command such as "a little higher" or "a little lower" is input, the bed control unit 401 may change the height of the top plate 31 of the bed 3 by the amount of the predetermined offset value.

[0056] The bed control unit 401 may control the height of the top plate 31 of the bed 3 based on the past data of the subject. The past data of the subject is stored, for example, in the patient information management system 51 and acquired by the acquisition unit 402.

[0057] FIG. 3 is a diagram showing an example of the past data of the subject. As shown in FIG. 3, the past data of the subject records the patient ID, name, gender, height, weight, and examination date for identifying the subject. The values of height and weight may be values based on the subject's self-report, measured values, or values in the subject analysis information. Also, as shown in FIG. 3, for each past examination of the subject, the past data of the subject records the height value when getting on the bed 3, the height value when getting off the bed 3, and the height values when getting on and off the bed 3 when readjusted in the readjustment mode. The bed control unit 401 identifies the target subject from the image captured by the imaging device 6 or the information recorded in the examination reservation system 52. If the data of the subject exists in the past data of the subject, the bed control unit 401 may control the height of the top plate 31 of the bed 3 based on that data. If the height value of the bed 3 when readjusted in the readjustment mode in the most recent examination is recorded, the bed control unit 401 may set the height of the top plate 31 of the bed 3 to the value when readjusted in the readjustment mode.

[0058] Also, the bed control unit 401 may control the height of the top plate 31 of the bed 3 based on the past diagnostic images obtained in the past examinations of the subject as the past data of the subject. In this case, the image analysis unit 403 analyzes the past diagnostic images of the subject to obtain subject analysis information, and the bed control unit 401 may control the height of the top plate 31 of the bed 3 based on the subject analysis information. Here, the subject analysis information obtained by analyzing the past diagnostic images may include the positions of the lower limbs and pelvis of the subject.

[0059] In the above description, the case where the bed control unit 401 is included in the console 4 is shown. However, the present disclosure is not limited to such an example. The function of the bed control unit 401 may be included in the base processor built into the gantry 11 by the base processor built into the gantry 11 reading and executing the control program of the medical diagnostic device. By reading and executing the control program of the medical diagnostic device, the processor exchanges information with the console 4 to control the height of the top plate 31 of the bed 3.

[0060] Next, the operation of the console 4 will be described.

[0061] FIG. 4 is a flowchart showing the control flow of the medical diagnostic device by the console 4. The CPU 41 reads the control program of the medical diagnostic device from the ROM 42 or the storage 44, expands it in the RAM 43, and executes it, thereby performing the control process of the medical diagnostic device. The flowchart shown in FIG. 4 is executed when the subject is examined by the medical diagnostic device, that is, before the subject gets on the bed 3.

[0062] In step S101, the CPU 41 acquires the optical image captured by the imaging device 6 as the subject image.

[0063] Subsequent to step S101, in step S102, the CPU 41 analyzes the subject image to obtain subject analysis information.

[0064] Subsequent to step S102, in step S103, the CPU 41 controls the height of the top plate 31 of the bed 3 based on the subject analysis information so that the subject can easily get on the bed 3.

[0065] Subsequent to step S103, in step S104, the CPU 41 determines whether a predetermined trigger has been detected. If a predetermined trigger has been detected (step S104; Yes), in step S105, the CPU 41 enters the height readjustment mode and adjusts the height of the top plate 31 of the hospital bed 3 based on an operation from the operator. On the other hand, if a predetermined trigger has not been detected (step S104; No), the CPU 41 ends the series of processes.

[0066] FIG. 5 is a flowchart showing the flow of control of the medical diagnostic apparatus by the console 4. The control process of the medical diagnostic apparatus is performed by the CPU 41 reading out the control program of the medical diagnostic apparatus from the ROM 42 or the storage 44 and expanding and executing it in the RAM 43. The flowchart shown in FIG. 5 is executed when an examination in the medical diagnostic apparatus is being performed.

[0067] In step S111, the CPU 41 waits until the examination in the medical diagnostic apparatus ends. When the examination in the medical diagnostic apparatus ends (step S111; Yes), in step S112, the CPU 41 controls the height of the top plate 31 of the hospital bed 3 so that the subject can easily get off the hospital bed 3 based on the subject analysis information.

[0068] As described above, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings, but the technical scope of the present disclosure is not limited to such examples. It is obvious that a person having ordinary knowledge in the technical field of the present disclosure can come up with various modification examples or correction examples within the scope of the technical idea described in the claims, and it is naturally understood that these modification examples or correction examples also belong to the technical scope of the present disclosure.

[0069] Also, the effects described in the above embodiments are illustrative or exemplary and are not limited to those described in the above embodiments. That is, the technology according to the present disclosure may exhibit other effects apparent to those having ordinary knowledge in the technical field of the present disclosure from the description in the above embodiments, together with or instead of the effects described in the above embodiments.

[0070] In addition, in each of the above embodiments, the control process of the medical diagnostic device in which the CPU reads and executes software (program) may be executed by various processors other than the CPU. Examples of the processor in this case include a PLD (Programmable Logic Device) whose circuit configuration can be changed after manufacture, such as an FPGA (Field-Programmable Gate Array), and a dedicated electric circuit which is a processor having a circuit configuration dedicated to executing a specific process, such as an ASIC (Application Specific Integrated Circuit). Further, the control process of the medical diagnostic device may be executed by one of these various processors, or may be executed by a combination of two or more processors of the same type or different types (for example, a plurality of FPGAs, and a combination of a CPU and an FPGA, etc.). More specifically, the hardware structure of these various processors is an electric circuit combining circuit elements such as semiconductor elements.

[0071] Also, in each of the above embodiments, the mode in which the control program of the medical diagnostic device is pre-stored (installed) in the ROM or the storage has been described, but it is not limited thereto. The program may be provided in a form recorded on a non-transitory recording medium such as a CD-ROM (Compact Disk Read Only Memory), a DVD-ROM (Digital Versatile Disk Read Only Memory), and a USB (Universal Serial Bus) memory. Further, the program may be in a form downloaded from an external device via a network.

Description of Symbols

[0072] 1 Scanner 11 Stand 12 Rotating Plate 13 X-ray Tube Device 14 Collimator 15 X-ray Detector 17 Rotating Plate Driving Device 18 Collimator Control Device 19 Rotating Plate Driving Control Device 20 X-ray High Voltage Generator 21 Data Transmission Device 3 Bed 31 Top Plate 32 Bed Control Device 33 Top Plate Vertical Movement Control Device 34 Top Plate Forward and Backward Movement Control Device 4 Console 5 Hospital Information System

Claims

1. A processor is provided. The processor, Acquire a subject image, which is an image of a subject placed on a bed; Analyzing the acquired subject image to acquire subject analysis information; The height of the bed is controlled based on the subject analysis information. A medical diagnostic device that performs the processing.

2. the subject images are a plurality of optical images obtained by imaging the subject from a plurality of directions, The processor analyzes the optical images to obtain the subject analysis information for each of the optical images, and executes a process of controlling a height of the bed based on the subject analysis information.

2. The medical diagnostic device of claim 1.

3. The medical diagnostic apparatus of claim 1 , wherein the subject analysis information includes information regarding physical characteristics of the subject.

4. The medical diagnostic apparatus according to claim 1 , wherein the subject analysis information includes information regarding a support member used for supporting the subject.

5. 5. The medical diagnostic apparatus according to claim 4, wherein when the processor recognizes that the subject is placed on a transport device separate from the medical diagnostic apparatus as information regarding the support member, the processor executes a process of controlling the height of the bed to match the height of the transport device.

6. The medical diagnostic apparatus according to claim 1 , wherein the processor executes a process for controlling the height of the bed at least when the subject gets on the bed or when the subject gets off the bed.

7. 7. The medical diagnostic apparatus according to claim 6, wherein the processor controls an examination of a subject, and executes a process of controlling a height of the bed by determining, based on progress information of the examination, when the subject gets on the bed and when the subject gets off the bed.

8. 2. The medical diagnostic apparatus of claim 1, wherein the processor has a readjustment mode that allows the bed height to be readjusted after the bed height has been automatically controlled.

9. 9. The medical diagnostic apparatus according to claim 8, wherein the processor further acquires an optical image of an operator manipulating a height of a bed, and in the readjustment mode, recognizes a gesture of the operator from the acquired optical image and executes a process of readjusting the height of the bed based on the gesture.

10. 9. The medical diagnostic device according to claim 8, wherein the processor further acquires a voice of an operator operating a height of a bed, and in the readjustment mode, recognizes the acquired voice and executes a process of readjusting the height of the bed based on the voice.

11. The medical diagnostic apparatus according to claim 8 , wherein the processor, in the readjustment mode, executes a process of readjusting the height of the bed based on an operation for changing the height of the bed.

12. The medical diagnostic apparatus according to claim 8 , wherein the processor, in the readjustment mode, executes a process of readjusting the height of the bed by applying a preset offset value.

13. The medical diagnostic apparatus according to claim 1 , wherein the processor executes a process of controlling a height of the bed based on information from a past examination of the subject.

14. 14. The medical diagnostic apparatus according to claim 13, wherein the processor analyzes, as the subject images, optical images of the subject and past diagnostic images obtained during a past examination of the subject, to obtain the subject analysis information, and executes a process of controlling a height of the bed based on the subject analysis information obtained by analyzing the optical images and the past diagnostic images.

15. The medical diagnostic apparatus according to claim 13 , wherein the processor executes a process for controlling a height of the bed based on information on a height of the bed during a previous examination of the subject.

16. The processor: Acquire a subject image, which is an image of a subject placed on a bed; Analyzing the acquired subject image to obtain subject analysis information; The height of the bed is controlled based on the subject analysis information. A method for controlling a medical diagnostic device that executes processing.

17. On the computer, Acquire a subject image, which is an image of a subject placed on a bed; Analyzing the acquired subject image to obtain subject analysis information; The height of the bed is controlled based on the subject analysis information. A control program for a medical diagnostic device that executes processing.

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