Medical diagnostic device, method for controlling medical diagnostic device, and program product

Abstract

The present invention provides a medical diagnostic apparatus, a method for controlling the medical diagnostic apparatus, and a program product, wherein the height of a bed is controlled on the basis of the analysis result of a subject using an image mapped with the subject. A medical diagnostic device is provided with a processor that executes: a process for acquiring a subject image, which is an image of a subject placed on a bed; analyzing the acquired subject image to acquire subject analysis information; and controlling the height of the bed on the basis of the subject analysis information.

Description

Technical Field

[0001] The present invention relates to a medical diagnostic device, a control method for the medical diagnostic device and a control program for the medical diagnostic device. Background Art

[0002] In medical diagnostic apparatuses such as X-ray CT apparatuses and MRI apparatuses, there is disclosed a method of calculating a height that is easy to get on and off based on the height of a subject and changing the height of a diagnostic bed based on the calculation result (Patent Documents 1, 2, etc.).

[0003] Patent Document 1: Japanese Patent Application Publication No. 2020-065920

[0004] Patent Document 2: Japanese Patent No. 5191809

[0005] The height of the diagnostic bed for easy access varies according to the physique, condition, age, etc. of the subject. However, in the prior art, there is no method for analyzing the condition of the subject using an image mapped with the subject and controlling the height of the diagnostic bed of the medical diagnosis device based on the analysis result. Summary of the invention

[0006] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a medical diagnostic apparatus, a control method of the medical diagnostic apparatus, and a control program of the medical diagnostic apparatus for controlling the height of a diagnostic bed based on an analysis result of a subject using an image onto which the subject is mapped.

[0007] A medical diagnostic apparatus according to a first aspect of the present invention includes a processor that performs the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; analyzing the acquired subject image to acquire subject analysis information; and controlling the height of the diagnostic bed based on the subject analysis information.

[0008] In the medical diagnostic device involved in the second embodiment of the present invention, in the medical diagnostic device involved in the first embodiment, the subject image is a plurality of optical images obtained by photographing the subject from a plurality of directions, and the processor performs the following processing: analyzing the plurality of optical images to obtain the subject analysis information for each of the optical images, and controlling the height of the diagnostic bed based on the plurality of subject analysis information.

[0009] A medical diagnostic apparatus according to a third aspect of the present invention is the medical diagnostic apparatus according to the first aspect or the second aspect, wherein the subject analysis information includes information related to physical characteristics of the subject.

[0010] A medical diagnostic apparatus according to a fourth aspect of the present invention is the medical diagnostic apparatus according to any one of the first to third aspects, wherein the subject analysis information includes information on a support member for supporting the subject.

[0011] The medical diagnostic device involved in the fifth aspect of the present invention is the medical diagnostic device involved in the fourth aspect, wherein the processor performs the following processing: if it is identified as information related to the supporting component that the subject is placed on a transport device different from the medical diagnostic device, the height of the diagnostic bed is controlled to correspond to the height of the transport device.

[0012] The medical diagnostic device according to the sixth aspect of the present invention is the medical diagnostic device according to any one of the first to fifth aspects, wherein the processor performs the following processing: controlling the height of the diagnostic bed in at least one of the following situations: when the subject is on the diagnostic bed or when the subject is under the diagnostic bed.

[0013] The medical diagnostic device involved in the 7th aspect of the present invention is the medical diagnostic device involved in the 6th aspect, wherein the processor performs the following processing: performs control related to the examination of the subject, and controls the height of the diagnostic bed by distinguishing when the subject is on the diagnostic bed and when the subject is below the diagnostic bed based on the progress information of the examination.

[0014] A medical diagnostic apparatus according to an eighth aspect of the present invention is the medical diagnostic apparatus according to any one of the first to seventh aspects, wherein the processor has a readjustment mode capable of readjusting the height of the diagnostic bed after automatically controlling the height of the diagnostic bed.

[0015] In the medical diagnostic device involved in the 9th embodiment of the present invention, in the medical diagnostic device involved in the 8th embodiment, the processor performs the following processing: acquiring an optical image of an operator who further operates the height of the diagnostic bed, in the readjustment mode, recognizing the operator's gesture through the acquired optical image, and readjusting the height of the diagnostic bed according to the gesture.

[0016] In the medical diagnostic device involved in the 10th embodiment of the present invention, in the medical diagnostic device involved in the 8th embodiment, the processor performs the following processing: obtaining the voice of the operator who further operates the height of the diagnostic bed, recognizing the obtained voice in the readjustment mode, and readjusting the height of the diagnostic bed according to the voice.

[0017] The medical diagnostic apparatus according to an eleventh aspect of the present invention is the medical diagnostic apparatus according to the eighth aspect, wherein the processor executes a process of readjusting the height of the diagnostic bed in accordance with an operation of changing the height of the diagnostic bed in the readjustment mode.

[0018] A medical diagnostic apparatus according to a twelfth aspect of the present invention is the medical diagnostic apparatus according to the eighth aspect, wherein the processor executes a process of readjusting the height of the diagnostic bed by applying a preset offset value in the readjustment mode.

[0019] A medical diagnostic apparatus according to a thirteenth aspect of the present invention is the medical diagnostic apparatus according to the first aspect, wherein the processor executes a process of controlling the height of the bed based on information on past examinations of the subject.

[0020] The medical diagnostic device involved in the 14th embodiment of the present invention is the medical diagnostic device involved in the 13th embodiment, wherein the processor performs the following processing: as the subject image, an optical image captured by the subject and a past diagnostic image obtained during a past examination of the subject are analyzed to obtain the subject analysis information; and the height of the diagnostic bed is controlled based on the subject analysis information obtained by analyzing the optical image and the past diagnostic image.

[0021] A medical diagnostic apparatus according to a fifteenth aspect of the present invention is the medical diagnostic apparatus according to the thirteenth aspect, wherein the processor executes a process of controlling the height of the diagnostic couch based on information on the height of the diagnostic couch during a past examination of the subject.

[0022] In the control method of the medical diagnostic device involved in the 16th embodiment of the present invention, the processor performs the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; analyzing the acquired subject image to obtain subject analysis information; and controlling the height of the diagnostic bed based on the subject analysis information.

[0023] The control program of the medical diagnostic device involved in the 17th embodiment of the present invention causes the computer to perform the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; analyzing the acquired subject image to obtain subject analysis information; and controlling the height of the diagnostic bed based on the subject analysis information.

[0024] Effects of the Invention

[0025] According to the present invention, it is possible to provide a medical diagnostic apparatus, a control method of the medical diagnostic apparatus, and a control program of the medical diagnostic apparatus for controlling the height of a diagnostic bed based on an analysis result of a subject using an image onto which the subject is mapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a diagram showing a schematic configuration of a medical diagnostic device according to an embodiment of the inventive technique.

[0027] Figure 2 This is a block diagram showing an example of the functional structure of a console.

[0028] Figure 3 This is a diagram showing an example of past data of a subject.

[0029] Figure 4 This is a flowchart showing the flow of control of the medical diagnostic apparatus by the console.

[0030] Figure 5 This is a flowchart showing the flow of control of the medical diagnostic apparatus by the console.

[0031] Explanation of symbols

[0032] 1-scanner, 11-gantry, 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 generating device, 21-data transmission device, 3-diagnostic bed, 31-top plate, 32-diagnostic bed control device, 33-top plate up and down movement control device, 34-top plate forward and backward movement control device, 4-control console, 5-hospital information system. DETAILED DESCRIPTION

[0033] Hereinafter, an example of an embodiment of the present invention will be described with reference to the accompanying drawings. In addition, in each of the drawings, the same reference symbols are used for the same or equivalent components and parts. Furthermore, the dimensional ratios of the drawings may be exaggerated for the sake of explanation and may be different from the actual ratios.

[0034] Figure 1 1 is a diagram showing a schematic structure of a medical diagnostic device according to the present embodiment. In the present embodiment, a structure of an embodiment of an X-ray CT device is shown as a medical diagnostic device. In addition, the medical diagnostic device of the present invention is not limited to an X-ray CT device, and can also be applied to other medical diagnostic devices as long as the device is a device that moves the examination bed up and down.

[0035] The medical diagnostic apparatus according to the present embodiment includes a scanner 1 , a diagnostic bed 3 , and a console 4 .

[0036] The scanner 1 is a part that performs CT scanning. The scanner 1 includes: a gantry (frame) 11; a rotating plate 12 having an opening in the center portion and supported rotatably 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 portion of the X-ray tube device 13; an X-ray detector 15 disposed opposite to the X-ray tube device 13 with the opening of the rotating plate 12 sandwiched therebetween; and a rotating plate driving device 17 provided on the gantry 11. In addition, 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 driving control device 19 that controls the driving of the rotating plate driving device 17; an X-ray high voltage generator 20 that supplies power for generating X-rays to the X-ray tube device 13 and controls the X-ray generating 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. In addition, supply of electric power and control signals to each unit provided on the rotating plate 12 and 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 .

[0037] The diagnostic bed 3 moves the subject between the imaging preparation position and the imaging position. The subject is placed on the top plate 31. The top plate 31 has an up-and-down moving mechanism and a forward-and-backward moving mechanism (not shown). In order to control the movement of the up-and-down moving mechanism and the forward-and-backward moving mechanism of the top plate 31, the diagnostic bed 3 is provided with a diagnostic bed control device 32, a top plate up-and-down moving control device 33, and a top plate forward-and-backward moving control device 34.

[0038] The console 4 controls the medical diagnostic apparatus as an X-ray CT apparatus and includes a CPU (Central Processing Unit) 41 , a ROM (Read Only Memory) 42 , a RAM (Random Access Memory) 43 , and a memory 44 . The console 4 may also include an input unit 45 and a display unit 46 .

[0039] The CPU 41, as an example of a processor, is a central processing unit that executes various programs or controls various parts. That is, the CPU 41 reads the program from the ROM 42 or the memory 44, and executes the program using the RAM 43 as a work area. The CPU 41 controls the above-mentioned structures and performs various calculations according to the program recorded in the ROM 42 or the memory 44. In this embodiment, a control program of the medical diagnosis device for controlling the height of the diagnostic bed 3 of the medical diagnosis device is stored in the ROM 42 or the memory 44.

[0040] The ROM 42 stores various programs and various data. The RAM 43 temporarily stores programs and data as a work area. The memory 44 is composed of a storage device such as a HDD (Hard Disk Drive), an SSD (Solid State Drive) or a flash memory, and stores various programs including an operating system and various data.

[0041] The input unit 45 includes a pointing device such as a mouse and a keyboard, and is used for various inputs. The input unit 45 includes a bed operating unit for operating the height of the bed 3 .

[0042] The display unit 46 is, for example, a liquid crystal display, and displays various information. The display unit 46 may also function as the input unit 45 by using a touch panel.

[0043] In this embodiment, the console 4 is connected to a hospital information system 5 of a hospital where an X-ray CT apparatus is installed. The hospital information system 5 includes a patient information management system 51 and a test reservation system 52 .

[0044] The patient information management system 51 is a system that databases the personal information, diagnosis and treatment data, examination image data, examination data, medication data, etc. of patients who have received medical treatment in the hospital in the past. In addition to personal information such as name, ID, date of birth, age, and gender, the patient's personal information also includes physical information such as height and weight, and past medical examination dates. These personal information are entered into the system when the subject visits the hospital as a patient and receives medical treatment. In addition, the patient's height and weight are collected by self-declaration or actual measurement on the questionnaire, and entered into the patient information management system 51. In addition, the diagnosis and treatment data, examination image data, examination data, and medication data are entered into the patient information management system each time the patient is diagnosed and treated, and an in-hospital patient database is created.

[0045] The examination reservation system 52 creates a daily examination schedule for each system of the medical diagnostic apparatus equipped in the hospital based on the information stored or written in the patient information management system, and distributes the created examination schedule as data to each system. The examination schedule includes the order of patients who receive the examination of the day in the medical diagnostic apparatus and the personal specific information and physical information of each patient. In addition, the content of the examination reservation system 52 is updated sequentially according to the progress of the diagnosis and treatment of the day, and the updated data is sent to each system each time it is updated.

[0046] The console 4 uses the optical image captured by the camera 6 to control the height of the top plate 31 of the diagnostic bed 3. The camera 6 is installed in a room where a medical diagnostic device is installed, and is installed at a position where the posture of the subject being examined can be captured. The position where the camera 6 is installed is preferably a position where there is no obstruction between the subject and the ceiling or wall of the room, or the stand 11 of the scanner 1. In addition, the number of camera devices 6 can be one, but in order to be able to capture the posture of the subject from different directions, multiple cameras can also be installed. The control processing of the diagnostic bed 3 based on the optical image captured by the camera 6 using the console 4 will be described in detail later.

[0047] When executing the control program of the medical diagnosis device, the console 4 uses the hardware resources to realize various functions. The functional structure realized by the console 4 is described below.

[0048] Figure 2 4 is a block diagram showing an example of the functional configuration of the console 4 .

[0049] like Figure 2 As shown, the console 4 includes a bed control unit 401, an acquisition unit 402, an image analysis unit 403, and an examination control unit 404 as functional components. Each functional component is implemented by the CPU 41 reading and executing a control program for the medical diagnostic apparatus stored in the ROM 42 or the memory 44.

[0050] 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. If 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 suitable for examination in the scanner 1.

[0051] The acquisition unit 402 acquires an image of the subject, that is, a subject image. The subject image is an optical image obtained by photographing the subject by the imaging device 6, but the subject image may also be a past diagnostic image obtained during a past examination of the subject. The past diagnostic image may be an image obtained by a CT examination, an MRI examination, etc. The acquisition unit 402 may acquire the past diagnostic image of the subject from, for example, the patient information management system 51.

[0052] 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 the subject is reflected in the optical image captured by the camera 6, and if the subject is reflected, obtains the subject analysis information. The image analysis unit 403 can also determine whether the subject is reflected in the optical image captured by the camera 6 by, for example, recognizing whether the face other than the hospital staff registered in advance is recognized, whether the person wearing the inspection uniform is recognized, and whether the person whose identity is confirmed by the engineer is recognized. In addition, the image analysis unit 403 can also use the results of machine learning performed in advance to identify the person of the subject.

[0053] The subject analysis information includes, for example, information related to physical characteristics such as height, weight, waist height, leg length, and physical condition. For example, the image analysis unit 403 estimates the physical condition of the subject based on the subject's complexion, gait (if the stride is narrow, the physical condition is estimated to be worse), posture (if the waist is bent, the physical condition is estimated to be poor), etc. In addition, the subject analysis information includes, for example, information related to the support component used to support the subject. The support component is, for example, plaster, crutches, wheelchairs, stretchers, etc. The image analysis unit 403 can obtain the subject analysis information from the subject image using a learned model generated by pre-machine learning using the subject image. Obtaining the subject analysis information from the subject image using the learned model means that the subject image is input into the learned model and the subject analysis information is obtained through the output from the learned model.

[0054] The bed control unit 401 controls the height of the top board 31 of the bed 3 using the subject analysis information obtained by the analysis of the subject image by the image analysis unit 403 so that the subject can easily sit on the top board 31. The bed control unit 401 controls the height of the top board 31, for example, based on the height, waist height, and leg length of the subject. In addition, the bed control unit 401 can control the height of the top board 31 to be lower than the height based on the height, waist height, and leg length of the subject when the subject uses a support member. In addition, the bed control unit 401 can also control the height of the top board 31 to be lower than the height based on the height, waist height, and leg length of the subject if the subject's weight is heavier than a prescribed ratio relative to a standard value. In addition, the bed control unit 401 can control the height of the top board 31 to be lower than the height based on the height, waist height, and leg length of the subject if the subject's age is greater than a prescribed value. Furthermore, the bed control unit 401 may control the height of the table top 31 so that, if the physical condition of the subject is not good, the height is lower than a height based on the height, waist height, and leg length of the subject.

[0055] The bed control unit 401 controls the height of the top board 31 of the bed 3 using the subject analysis information, whereby the medical diagnostic apparatus can set the height of the top board 31 to a height at which the subject can easily sit.

[0056] In the case where a plurality of imaging devices 6 are provided, the image analysis unit 403 can obtain the subject analysis information using a plurality of subject images captured by each imaging device 6. In this case, the bed control unit 401 can control the height of the top plate 31 of the bed 3 according to the accuracy of the subject analysis information obtained based on the analysis of each subject image. For example, the subject analysis information obtained by analyzing the subject image captured by the imaging device 6 installed on the ceiling by the image analysis unit 403 is compared with the subject analysis information obtained by analyzing the subject image captured by the imaging device 6 installed on the wall by the image analysis unit 403. If the accuracy of the subject analysis information obtained from the subject image captured by the imaging device 6 installed on the wall is high, the bed control unit 401 can control the height of the top plate 31 of the bed 3 using the subject analysis information obtained from the subject image captured by the imaging device 6 installed on the wall. In addition, even if the subject analysis information is obtained from the subject image captured by the same camera 6, the accuracy value may be different depending on the condition of the subject. For example, the accuracy value of the subject analysis information may be different when the subject is in a standing position, a sitting position, or a lying position. Therefore, the image analysis unit 403 controls the height of the top plate 31 of the diagnostic bed 3 according to the accuracy value of the subject analysis information, thereby making it possible to control the height of the top plate 31 of the diagnostic bed 3 appropriately according to the condition of the subject.

[0057] If the result of the image analysis unit 403 analyzing the subject image includes that the subject is sitting in a wheelchair in the subject analysis information, the bed control unit 401 can use the subject analysis information obtained from the subject image captured by the camera 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 camera 6 installed on the ceiling. Therefore, the image analysis unit 403 can also obtain the subject analysis information by using the subject image captured by the camera 6 installed at a position where it can be captured from the side of the wall, the stand 11, etc. when the subject is sitting in the wheelchair.

[0058] If the result of analyzing the subject image by the image analysis unit 403 includes in the subject analysis information that the subject is placed on a transport device (e.g., a stretcher) different from the medical diagnostic apparatus, the bed control unit 401 can control the height of the top plate 31 of the bed 3 to correspond to the height of the transport device.

[0059] The examination control unit 404 controls the examination of the subject by the medical diagnosis device. If the examination control unit 404 determines that the prescribed examination has started based on the progress information of the examination in the medical diagnosis device, it will move the diagnostic bed 3 to the middle of the rotating plate 12. In addition, if the examination control unit 404 determines that the prescribed examination has ended based on the progress information of the examination in the medical diagnosis device, it will move the diagnostic bed 3 to the outside of the rotating plate 12.

[0060] The bed control unit 401 determines the time when the examination is finished, that is, the time when the bed 3 moves to the outside of the rotating plate 12 and the subject gets off the bed, and controls the height of the top plate 31 of the bed 3 in a way that makes it easy for the subject to get off the bed 3. Whether the examination is finished can be determined by the examination control unit 404 based on the progress information of the examination, or by the image analysis unit 403 judging that the subject moves out of the rotating plate 12 while lying on the bed based on the optical image captured by the camera 6, or by the bed control unit 401 detecting 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 when the weight of the object placed on the bed 3 is about the weight of a person, it is determined 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 person (e.g., 50 to 80 kg) and the bed 3 moves out of the rotating plate 12, the examination control unit 404 determines that the examination of the subject is finished. At this time, the bed control unit 401 controls the height of the top plate 31 of the bed 3. On the other hand, when the bed control unit 401 detects that the weight of the object of the bed 3 is light, the examination control unit 404 determines that it is before the examination of the subject starts. In this case, the bed control unit 401 controls the height of the top plate 31 of the bed 3 in such a way that the subject can easily sit on the bed 3. In addition, depending on the content of the examination using the medical diagnostic device, it is also possible that the bed 3 is pulled out of the stand 11 once during the examination and the subject is allowed to get off the bed 3. In this case, even if it is not at the end of the examination, the bed control unit 401 can control the height of the top plate 31 of the bed 3 during the examination when the bed 3 moves to the outside of the rotating plate 12.

[0061] Even if the bed control unit 401 uses the subject analysis information to control the height of the top board 31 of the bed 3 to match the subject, the height may not actually match the subject. Therefore, the bed control unit 401 may have a readjustment mode that can readjust the height of the top board 31 of the bed 3 after automatically controlling the height of the top board 31 of the bed 3.

[0062] The diagnostic bed control unit 401 enters the readjustment mode upon detection of a prescribed action by the operator. As detection of the prescribed action, for example, there is detection of a prescribed gesture of the operator having an optical image captured by the camera 6, detection of a prescribed voice command of the operator based on a microphone arranged at a prescribed position, detection of the operator operating a height operating unit for operating the height of the diagnostic bed 3, and the like. The microphone can be provided independently or integrally with the camera 6. The voice command can also be acquired by the acquisition unit 402. Furthermore, the height operating unit for operating the height of the diagnostic bed 3 can be provided as an input unit 45, for example, or can be a foot switch, a manual switch, a switch provided on the side of the diagnostic bed 3, a virtual switch projected onto the wall, and the like.

[0063] If the bed control unit 401 enters the readjustment mode, the height of the top plate 31 of the bed 3 is readjusted according to the operator's prescribed action. As a prescribed action, there is, for example, a prescribed gesture action of the operator. The gesture may be, for example, up or down, etc., with a finger, and while the gesture lasts, the bed control unit 401 moves the top plate 31 of the bed 3 in the direction of the gesture. In addition, as a prescribed action, there is, for example, a prescribed voice command of the operator. The voice command may be "more than ○ centimeters" or "less than ○ centimeters", etc., or "a little higher" or "a little lower". The bed control unit 401 moves the top plate 31 of the bed 3 according to the voice command. In addition, as a prescribed action, there is, for example, an operation of the height operating 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 operating unit. Furthermore, when the bed control unit 401 enters the readjustment mode, the height of the top plate 31 of the bed 3 may be changed by applying a predetermined offset value. Furthermore, when a non-specific voice command such as "a little higher" or "a little lower" is input to the bed control unit 401, the height of the top plate 31 of the bed 3 may be changed by only the amount of the predetermined offset value.

[0064] 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 in the patient information management system 51, for example, and is acquired by the acquisition unit 402.

[0065] Figure 3 is a diagram showing an example of past data of a subject. Figure 3 As shown in FIG. 1 , the patient ID, name, gender, height, weight, and examination date of the subject are recorded in the past data of the subject. The height and weight values ​​may be based on the self-reported values ​​of the subject, or may be the actual measured values, or may be the values ​​in the subject analysis information. Figure 3As shown, in the past data of the subject, the values ​​of the height of the subject when the subject is on the diagnostic bed 3, the values ​​of the height when the subject is down the diagnostic bed 3, the values ​​of the height when the subject is on the diagnostic bed 3 when readjusted by the readjustment mode, and the values ​​of the height when the subject is down the diagnostic bed 3 are recorded for each past examination of the subject. The diagnostic bed control unit 401 can identify the target subject from the image captured by the camera 6 or the information recorded in the examination reservation system 52, and as long as the data of the subject exists in the past data of the subject, the height of the top plate 31 of the diagnostic bed 3 can be controlled based on the data. As long as the value of the height of the diagnostic bed 3 when readjusted by the readjustment mode in the most recent examination is recorded, the diagnostic bed control unit 401 can set the height of the top plate 31 of the diagnostic bed 3 to the value when readjusted by the readjustment mode.

[0066] Furthermore, as the past data of the subject, the bed control unit 401 may also control the height of the top plate 31 of the bed 3 according to the past diagnostic images obtained in the past examination of the subject. At this time, the image analysis unit 403 may analyze the past diagnostic images of the subject to obtain the subject analysis information, and the bed control unit 401 may control the height of the top plate 31 of the bed 3 according to 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.

[0067] In addition, in the above description, the case where the bed control unit 401 is included in the console 4 is shown, but the present invention is not limited to this example. The function of the bed control unit 401 can also be included in the processor of the substrate built into the gantry 11 by reading and executing the control program of the medical diagnostic device. The processor sends and receives information with the console 4 by reading and executing the control program of the medical diagnostic device, and controls the height of the top plate 31 of the bed 3.

[0068] Next, the function of the console 4 will be described.

[0069] Figure 4 This is a flowchart showing the flow of control of the medical diagnostic apparatus by the console 4. The CPU 41 reads a control program of the medical diagnostic apparatus from the ROM 42 or the memory 44, expands it into the RAM 43 and executes it, thereby performing control processing of the medical diagnostic apparatus. Figure 4 The flowchart shown is executed when the subject is examined by the medical diagnostic apparatus, that is, before the subject gets on the diagnostic bed 3 .

[0070] In step S101 , the CPU 41 acquires an optical image captured by the imaging device 6 as a subject image.

[0071] After step S101 , in step S102 , the CPU 41 analyzes the subject image to obtain subject analysis information.

[0072] After 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 .

[0073] After step S103, in step S104, the CPU 41 determines whether a predetermined trigger is detected. If a predetermined trigger is detected (step S104; Yes), in step S105, the CPU 41 enters a height readjustment mode and adjusts the height of the top plate 31 of the diagnostic bed 3 according to the operation from the operator. On the other hand, if a predetermined trigger is not detected (step S104; No), the CPU 41 ends a series of processing.

[0074] Figure 5 This is a flowchart showing the flow of control of the medical diagnostic apparatus by the console 4. The CPU 41 reads a control program of the medical diagnostic apparatus from the ROM 42 or the memory 44, expands it into the RAM 43 and executes it, thereby performing control processing of the medical diagnostic apparatus. Figure 5 The flowchart shown is executed when performing an examination in a medical diagnostic apparatus.

[0075] In step S111, the CPU 41 waits until the examination in the medical diagnostic apparatus is completed. If the examination in the medical diagnostic apparatus is completed (step S111; Yes), in step S112, the CPU 41 controls the height of the top plate 31 of the diagnostic bed 3 according to the subject analysis information so that the subject can easily get off the diagnostic bed 3.

[0076] The embodiments of the present invention are described in detail with reference to the accompanying drawings, but the technical scope of the present invention is not limited to these examples. Anyone with common knowledge in the technical field of the present invention can think of various variations or modifications within the scope of the technical ideas recorded in the claims, and it should be understood that these variations or modifications naturally also belong to the technical scope of the present invention.

[0077] Furthermore, the effects described in the above embodiments are illustrative or exemplary effects and are not limited to the effects described in the above embodiments. That is, the technology involved in the present invention can obtain other effects that are obvious to a person with ordinary knowledge in the technical field of the present invention in addition to the effects described in the above embodiments, or according to the description in the above embodiments, instead of the effects described in the above embodiments.

[0078] In addition, in each of the above-mentioned embodiments, the control processing of the medical diagnostic device executed by the CPU reading the software (program) can also be executed by various processors other than the CPU. As the processor at this time, FPGA (Field-Programmable Gate Array) and other PLD (Programmable Logic Device) whose circuit structure can be changed after manufacturing and ASIC (Application Specific Integrated Circuit) and other processors with circuit structures specially designed to perform specific processing, that is, dedicated circuits, etc. can be exemplified. In addition, the control processing of the medical diagnostic device can be executed by one of these various processors, or by a combination of two or more processors of the same type or different types (for example, a combination of multiple FPGAs and a CPU and FPGA, etc.). In addition, more specifically, the hardware structure of these various processors is an electrical circuit that combines circuit elements such as semiconductor elements.

[0079] Furthermore, in the above-mentioned embodiments, the control program of the medical diagnostic device is pre-stored (installed) in a ROM or a memory, but the present invention is not limited thereto. The program can be provided in the form of 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. Furthermore, the program can also be downloaded from an external device via a network.

Claims

1. A medical diagnostic device comprising a processor, The processor performs the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; Analyzing the acquired subject image to acquire subject analysis information; and The height of the diagnostic bed is controlled based on the subject analysis information.

2. The medical diagnostic device according to claim 1, wherein: The subject image is a plurality of optical images obtained by photographing the subject from a plurality of directions. The processor performs a process of analyzing the plurality of optical images to obtain the subject analysis information for each of the optical images, and controlling the height of the diagnostic bed based on the plurality of subject analysis information.

3. The medical diagnostic device according to claim 1 or 2, wherein: The subject analysis information includes information related to physical characteristics of the subject.

4. The medical diagnostic device according to claim 1 or 2, wherein: The subject analysis information includes information on a support member for supporting the subject used for the subject.

5. The medical diagnostic device according to claim 4, wherein: The processor performs a process of controlling the height of the bed to correspond to the height of the transport tool when recognizing, as information on the support member, that the subject is placed on a transport tool different from the medical diagnostic apparatus.

6. The medical diagnostic device according to claim 1 or 2, wherein: The processor performs a process of controlling the height of the diagnostic couch at least one of when the subject is on the diagnostic couch and when the subject is off the diagnostic couch.

7. The medical diagnostic device according to claim 6, wherein: The processor performs the following processing: performing control related to the examination of the subject, determining when the subject is on the diagnostic bed and when the subject is off the diagnostic bed according to the progress information of the examination, and controlling the height of the diagnostic bed.

8. The medical diagnostic device according to claim 1 or 2, wherein: The processor has a readjustment mode capable of readjusting the height of the diagnostic couch after automatically controlling the height of the diagnostic couch.

9. The medical diagnostic device according to claim 8, wherein: The processor performs the following processing: acquiring an optical image of an operator who further operates the height of the diagnostic bed, recognizing a gesture of the operator through the acquired optical image in the readjustment mode, and readjusting the height of the diagnostic bed according to the gesture.

10. The medical diagnostic device according to claim 8, wherein: The processor performs the following processing: acquiring a voice of an operator who further operates the height of the diagnostic bed, recognizing the acquired voice in the readjustment mode, and readjusting the height of the diagnostic bed according to the voice.

11. The medical diagnostic device according to claim 8, wherein: The processor performs the following processing: in the readjustment mode, readjusting the height of the diagnostic bed according to an operation of changing the height of the diagnostic bed.

12. The medical diagnostic device according to claim 8, wherein: The processor performs the following processing: in the readjustment mode, readjusting the height of the diagnostic bed by applying a preset offset value.

13. The medical diagnostic device according to claim 1 or 2, wherein: The processor executes a process of controlling the height of the diagnostic bed based on information from a past examination of the subject.

14. The medical diagnostic device according to claim 13, wherein: The processor performs the following processing: analyzing an optical image captured of the subject and a past diagnostic image obtained during a past examination of the subject as the subject image to obtain the subject analysis information, and controlling the height of the diagnostic bed based on the subject analysis information obtained by analyzing the optical image and the past diagnostic image.

15. The medical diagnostic device according to claim 13, wherein: The processor executes a process of controlling the height of the diagnostic couch based on information on the height of the diagnostic couch during a past examination of the subject.

16. A method for controlling a medical diagnostic device, wherein: The processor performs the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; Analyzing the acquired subject image to obtain subject analysis information; and The height of the diagnostic bed is controlled based on the subject analysis information.

17. A program product, comprising a control program for a medical diagnostic apparatus, the control program causing a computer to execute the following processing: acquiring an image of a subject placed on a diagnostic bed, namely, a subject image; Analyzing the acquired subject image to obtain subject analysis information; and The height of the diagnostic bed is controlled based on the subject analysis information.

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