JP2021142124A - Medical processing device - Google Patents

Abstract

To improve use feelings for a user.SOLUTION: A medical processing device includes a reception unit and a display control unit. The reception unit receives input of an operator for operating a bed device or a rack device included in a diagnostic device through an input screen displayed in a display unit. The display control unit determines whether to call attention by changing part of the input screen or to call attention by popping up a new display frame on the basis of the contents of the input received by the reception unit.SELECTED DRAWING: Figure 1

Description

Embodiments disclosed herein and in the drawings relate to medical processing equipment.

Conventionally, when the user's operation is analyzed, the possibility of an operation error is determined for an operation deviating from the original processing flow based on past error information, and the possibility of an operation error is determined to be high, the user The technology related to the display device that calls attention to is disclosed. However, there is no disclosure of a technique for suitably diverting it to a display device of a medical image diagnostic device such as an X-ray CT (Computed Tomography) device, and the user may find it annoying to call attention or it is not easy to use. There was a case that it became.

Japanese Unexamined Patent Publication No. 2015-207251 International Publication No. 2017/195544 Japanese Unexamined Patent Publication No. 2016-181167

The problem to be solved by the present invention is to improve the usability of the user. However, the problems to be solved by the embodiments disclosed in the present specification and the drawings are not limited to the above problems. It is also possible to position the problem corresponding to each effect of each configuration shown in the embodiment described later as another problem.

The medical processing device of the embodiment includes a reception unit and a display control unit. The reception unit receives the input of the operator who operates the bed device or the gantry device included in the diagnostic device via the input screen displayed on the display unit. Based on the content of the input received by the reception unit, the display control unit calls attention by changing a part of the input screen, or pops up a new display frame to call attention. To determine.

The block diagram of the X-ray CT apparatus of an embodiment. The figure for demonstrating the display control function. The figure which shows an example of the data stored in a memory. The figure which shows an example of the information contained in a reference workflow. The figure which shows an example of the information included in the operation history. The figure which shows an example of the information contained in the display message. The figure which shows an example of the information contained in the display message. The figure which shows an example of the image displayed on the display when performing electrocardiography using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display when performing electrocardiography using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display when the chest CT image is performed using the X-ray CT apparatus. The figure which shows an example of the image displayed on the display when the chest CT image is performed using the X-ray CT apparatus. The figure which shows an example of the image displayed on the display when the breath-holding guidance is performed using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display when the breath-holding guidance is performed using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display 42 at the time of adjusting a scan shooting range using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display 42 at the time of adjusting a scan shooting range using an X-ray CT apparatus. The figure which shows an example of the image displayed on the display 42 at the time of adjusting a scan shooting range using an X-ray CT apparatus. The figure which shows an example of the image which is displayed on the display at the time of notifying that the input contents have been reset. The figure which shows an example of the image which is displayed on the display at the time of notifying that the input contents have been reset. The figure which shows an example of the screen which is displayed on the display when the input setting and the output setting are not the same. FIG. 5 is a flowchart showing an example of a flow of display processing performed when an input interface receives an operator's input in an X-ray CT apparatus. A flowchart showing an example of the flow of message image display processing by the message display control function. A flowchart showing another example of the flow of message image display processing by the message display control function.

Hereinafter, the medical processing apparatus of the embodiment will be described with reference to the drawings. Medical processing equipment includes, for example, X-ray CT (Computed Tomography) equipment, PET (Positron Emission Tomography) -CT equipment, nuclear medicine diagnostic equipment, magnetic resonance imaging equipment, and X-ray fluoroscopy equipment. Etc., which is a device capable of generating medical image data, or a device included in them. Hereinafter, an example of a specific embodiment will be described assuming that the medical processing device is an X-ray CT device which is an example of a medical diagnostic device.

FIG. 1 is a block diagram of the X-ray CT apparatus 1 of the embodiment. The X-ray CT device 1 includes, for example, a gantry device 10, a sleeper device 30, and a console device 40. In FIG. 1, for convenience of explanation, both a view of the gantry device 10 from the Z-axis direction and a view from the X-axis direction are shown, but in reality, the gantry device 10 is one. In the embodiment, the rotation axis of the rotation frame 17 in the non-tilt state or the longitudinal direction of the top plate 33 of the sleeper device 30 is orthogonal to the Z-axis direction and the Z-axis direction, and the axis horizontal to the floor surface is the X-axis. The direction orthogonal to the Z-axis direction and the direction perpendicular to the floor surface is defined as the Y-axis direction, respectively.

The gantry device 10 includes, for example, an X-ray tube 11, a wedge 12, a collimator 13, an X-ray high voltage device 14, an X-ray detector 15, and a data acquisition system (hereinafter, DAS: Data Acquisition System) 16. , A rotating frame 17, a control device 18, and a camera 19.

The X-ray tube 11 generates X-rays by irradiating thermoelectrons from the cathode (filament) toward the anode (target) by applying a high voltage from the X-ray high voltage device 14. The X-ray tube 11 includes a vacuum tube. For example, the X-ray tube 11 is a rotating anode type X-ray tube that generates X-rays by irradiating a rotating anode with thermoelectrons.

The wedge 12 is a filter for adjusting the X-ray dose applied to the subject P from the X-ray tube 11. The wedge 12 attenuates the X-rays passing through itself so that the distribution of the X-ray dose radiated from the X-ray tube 11 to the subject P becomes a predetermined distribution. The wedge 12 is also called a wedge filter or a bow-tie filter. The wedge 12 is made of aluminum processed so as to have a predetermined target angle and a predetermined thickness, for example.

The collimator 13 is a mechanism for narrowing down the irradiation range of X-rays transmitted through the wedge 12. The collimator 13 narrows down the X-ray irradiation range by forming a slit, for example, by combining a plurality of lead plates. The collimator 13 is sometimes called an X-ray diaphragm. The narrowing range of the collimator 13 may be mechanically driveable.

The X-ray high voltage device 14 includes, for example, a high voltage generator and an X-ray control device. The high voltage generator has an electric circuit including a transformer, a rectifier, and the like, and generates a high voltage applied to the X-ray tube 11. The X-ray control device controls the output voltage of the high voltage generator according to the X-ray dose to be generated in the X-ray tube 11. The high voltage generator may be one that boosts the voltage by the transformer described above, or may be one that boosts the voltage by an inverter. The X-ray high-voltage device 14 may be provided on the rotating frame 17, or may be provided on the side of the fixed frame (not shown) of the gantry device 10.

The X-ray detector 15 detects the intensity of X-rays generated by the X-ray tube 11 and passed through the subject P to be incident. The X-ray detector 15 outputs an electric signal (or an optical signal or the like) according to the intensity of the detected X-ray to the DAS 16. The X-ray detector 15 has, for example, a plurality of X-ray detection element sequences. Each of the plurality of X-ray detection element sequences is an array of a plurality of X-ray detection elements in the channel direction along an arc centered on the focal point of the X-ray tube 11. The plurality of X-ray detection element sequences are arranged in the slice direction (column direction, row direction).

The X-ray detector 15 is, for example, an indirect detector having a grid, a scintillator array, and an optical sensor array. The scintillator array has a plurality of scintillators. Each scintillator has a scintillator crystal. The scintillator crystal emits an amount of light according to the intensity of the incident X-rays. The grid is arranged on the surface of the scintillator array where X-rays are incident, and has an X-ray shielding plate having a function of absorbing scattered X-rays. The grid may also be called a collimator (one-dimensional collimator or two-dimensional collimator). The optical sensor array includes, for example, an optical sensor such as a photomultiplier tube (PMT). The optical sensor array outputs an electric signal according to the amount of light emitted by the scintillator. The X-ray detector 15 may be a direct conversion type detector having a semiconductor element that converts incident X-rays into an electric signal.

The DAS 16 has, for example, an amplifier, an integrator, and an A / D converter. The amplifier performs amplification processing on the electric signal output by each X-ray detection element of the X-ray detector 15. The integrator integrates the amplified electrical signal over the view period (described later). The A / D converter converts an electric signal indicating the integration result into a digital signal. The DAS 16 outputs the detection data based on the digital signal to the console device 40. The detection data is a digital value of the X-ray intensity identified by the channel number, the column number, and the view number indicating the collected view of the X-ray detection element of the generator. The view number is a number that changes according to the rotation of the rotation frame 17, for example, a number that is incremented according to the rotation of the rotation frame 17. Therefore, the view number is information indicating the rotation angle of the X-ray tube 11. The view period is a period within a period from the rotation angle corresponding to a certain view number to the rotation angle corresponding to the next view number. The DAS 16 may detect the switching of the view by a timing signal input from the control device 18, may be detected by an internal timer, or may be detected by a signal acquired from a sensor (not shown). .. When X-rays are continuously exposed by the X-ray tube 11 in the case of performing a full scan, the DAS 16 collects the detection data group for the entire circumference (360 degrees). When X-rays are continuously exposed by the X-ray tube 11 in the case of performing a half scan, the DAS 16 collects detection data for a half circumference (180 degrees).

The rotating frame 17 is an annular member that supports the X-ray tube 11, the wedge 12, the collimator 13, and the X-ray detector 15 so as to face each other. The rotating frame 17 is rotatably supported by the fixed frame around the subject P introduced inside. The rotating frame 17 further supports the DAS 16. The detection data output by the DAS 16 has a photodiode provided in a non-rotating portion (for example, a fixed frame) of the gantry device 10 by optical communication from a transmitter having a light emitting diode (LED) provided in the rotating frame 17. It is transmitted to the receiver and transferred to the console device 40 by the receiver. The method of transmitting the detection data from the rotating frame 17 to the non-rotating portion is not limited to the method using the above-mentioned optical communication, and any non-contact type transmitting method may be adopted. The rotating frame 17 is not limited to an annular member as long as it can support and rotate an X-ray tube 11 or the like, and may be a member such as an arm.

The X-ray CT apparatus 1 is, for example, a Rotate / Rotate-Type X-ray CT apparatus (third) in which both the X-ray tube 11 and the X-ray detector 15 are supported by the rotating frame 17 and rotate around the subject P. Generation CT), but not limited to this, in Stationary / Rotate-Type in which a plurality of X-ray detection elements arranged in an annular shape are fixed to a fixed frame and the X-ray tube 11 rotates around the subject P. It may be an X-ray CT apparatus (4th generation CT).

The control device 18 includes, for example, a processing circuit having a processor such as a CPU (Central Processing Unit) and a drive mechanism including a motor, an actuator, and the like. The control device 18 receives an input signal from the input interface 43 attached to the console device 40 or the gantry device 10 and controls the operation of the gantry device 10 and the sleeper device 30. For example, the control device 18 rotates the rotating frame 17 and tilts the gantry device 10. When tilting the gantry device 10, the control device 18 rotates the rotating frame 17 around an axis parallel to the Z-axis direction based on the tilt angle (tilt angle) input to the input interface 43. The control device 18 grasps the rotation angle of the rotation frame 17 by the output of a sensor (not shown) or the like. Further, the control device 18 provides the scan control function 55 with the rotation angle of the rotation frame 17 at any time. The control device 18 may be provided in the gantry device 10 or in the console device 40.

The camera 19 acquires information on the position of the subject P on the top plate 33 by taking an image of the subject P placed on the top plate 33. The image acquired by the camera 19 is referred to by the processing circuit 50 in order to specify the lying position, for example, at the time of positioning shooting.

The bed device 30 is a device on which the subject P to be scanned is placed, moved, and introduced into the rotating frame 17 of the gantry device 10. The sleeper device 30 includes, for example, a base 31, a sleeper drive device 32, a top plate 33, and a support frame 34. The base 31 includes a housing that movably supports the support frame 34 in the vertical direction (Y-axis direction). The sleeper drive device 32 includes a motor and an actuator. The bed driving device 32 moves the top plate 33 on which the subject P is placed along the support frame 34 in the longitudinal direction (Z-axis direction) of the top plate 33. The top plate 33 is a plate-shaped member on which the subject P is placed. The top plate 33 can be manually operated by an operator (for example, a doctor, a professional engineer, etc.) or mechanically connected to the bed drive device 32. The operator appropriately switches between manually operating the top plate 33 and operating the machine.

The sleeper drive device 32 may move not only the top plate 33 but also the support frame 34 in the longitudinal direction of the top plate 33. Further, contrary to the above, the gantry device 10 may be movable in the Z-axis direction, and the rotation frame 17 may be controlled to come around the subject P by the movement of the gantry device 10. Further, both the gantry device 10 and the top plate 33 may be movable. Further, the X-ray CT device 1 may be a device in which the subject P is scanned in a standing position or a sitting position. In this case, the X-ray CT device 1 has a subject support mechanism instead of the sleeper device 30, and the gantry device 10 rotates the rotating frame 17 about an axial direction perpendicular to the floor surface.

The console device 40 has, for example, a memory 41, a display 42, an input interface 43, a network connection circuit 44, and a processing circuit 50. In the embodiment, the console device 40 will be described as a separate body from the gantry device 10, but the gantry device 10 may include a part or all of each component of the console device 40.

The memory 41 is realized by, for example, a RAM (Random Access Memory), a semiconductor memory element such as a flash memory, a hard disk, an optical disk, or the like. The memory 41 stores, for example, detection data, projection data, reconstructed image data, CT image data, information on the subject P, imaging conditions, and the like. These data may be stored in an external memory with which the X-ray CT apparatus 1 can communicate, instead of the memory 41 (or in addition to the memory 41). The external memory is controlled by the cloud server, for example, when the cloud server that manages the external memory receives a read / write request.

The display 42 displays various information. For example, the display 42 displays a medical image (CT image) generated by the processing circuit, a GUI (Graphical User Interface) image that accepts various operations by the operator, and the like. The display 42 is, for example, a liquid crystal display, a CRT (Cathode Ray Tube), an organic EL (Electroluminescence) display, or the like. The display 42 may be provided on the gantry device 10. The display 42 may be a desktop type or a display device (for example, a tablet terminal) capable of wirelessly communicating with the main body of the console device 40. The display 42 is an example of a “display unit”.

The input interface 43 receives various input operations by the operator and outputs an electric signal indicating the contents of the received input operations to the processing circuit 50. For example, the input interface 43 includes collection conditions for collecting detection data or projection data (described later), reconstruction conditions for reconstructing a CT image, image processing conditions for generating a post-processed image from a CT image, and the like. Accepts input operations. For example, the input interface 43 is realized by a mouse, a keyboard, a touch panel, a drag ball, a switch, a button, a joystick, a camera, an infrared sensor, a microphone, and the like. The input interface 43 may be provided on the gantry device 10. Further, the input interface 43 may be realized by a display device (for example, a tablet terminal) capable of wireless communication with the main body of the console device 40. In this specification, the input interface is not limited to the one provided with physical operating parts such as a mouse and a keyboard. For example, an example of an input interface includes an electric signal processing circuit that receives an electric signal corresponding to an input operation from an external input device provided separately from the device and outputs the electric signal to a control circuit.

The network connection circuit 44 includes, for example, a network card having a printed circuit board, a wireless communication module, and the like. The network connection circuit 44 implements an information communication protocol according to the form of the network to be connected.

The processing circuit 50 controls the overall operation of the X-ray CT device 1, the operation of the gantry device 10, and the operation of the sleeper device 30. The processing circuit 50 executes, for example, a system control function 51, a pre-processing function 52, a reconstruction processing function 53, an image processing function 54, a scan control function 55, a display control function 56, a learning function 57, an additional function 58, and the like. These components are realized, for example, by the hardware processor executing a program (software) stored in the memory 41. The hardware processor is, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), an application specific integrated circuit (ASIC), and a programmable logic device (for example, a simple programmable logic device (Simple Programmable Logic)). It means a circuit such as a Device (SPLD) or a Complex Programmable Logic Device (CPLD) or a Field Programmable Gate Array (FPGA). Instead of storing the program in the memory 41, the program may be configured to be directly embedded in the circuit of the hardware processor. In this case, the hardware processor realizes the function by reading and executing the program embedded in the circuit. The hardware processor is not limited to being configured as a single circuit, and may be configured as one hardware processor by combining a plurality of independent circuits to realize each function. Further, a plurality of components may be integrated into one hardware processor to realize each function.

Each component of the console device 40 or the processing circuit 50 may be distributed and implemented by a plurality of hardware. The processing circuit 50 may be realized not by the configuration of the console device 40 but by a processing device capable of communicating with the console device 40. The processing device is, for example, a workstation connected to one X-ray CT device, or a device connected to a plurality of X-ray CT devices and collectively executing processing equivalent to the processing circuit 50 described below ( For example, a cloud server).

The system control function 51 controls various functions of the processing circuit 50 based on the input operation received by the input interface 43.

The pre-processing function 52 performs pre-processing such as logarithmic conversion processing, offset correction processing, sensitivity correction processing between channels, and beam hardening correction on the detection data output by DAS 16 to generate projection data.

The reconstruction processing function 53 generates CT image data by performing reconstruction processing on the projection data generated by the preprocessing function 52 by a filter correction back projection method, a successive approximation reconstruction method, or the like. The CT image data is stored in the memory 41.

The image processing function 54 converts CT image data into three-dimensional image data or cross-sectional image data of an arbitrary cross section by a known method based on the input operation received by the input interface 43. The conversion to the three-dimensional image data may be performed by the preprocessing function 52.

The scan control function 55 controls the collection process of the detection data in the gantry device 10 by instructing the X-ray high voltage device 14, the DAS 16, the control device 18, and the bed drive device 32. The scan control function 55 controls the operation of each part when taking a picture of collecting the positioning image and taking a picture of an image used for diagnosis.

The display control function 56 displays various images (captured image, positioning image, input operation result received by the input interface 43, etc.) on the display 42. Further, the display control function 56 displays a message prompting the review of the input contents when there is a possibility that the input operation received by the input interface 43 is incorrect. It is desirable that the screen display by the display control function 56 is such that a message or an image is displayed in or near the input frame so that the number of operations by the operator is reduced. Further, in the screen display by the display control function 56, it is desirable to display a message prompting the review of the input contents refraining from displaying the pop-up message so that the number of operations by the operator is reduced. The details of the message display by the display control function 56 will be described later.

The learning function 57 acquires the control result by the display control function 56, the input operation received by the input interface 43, the control result of the gantry device 10 and the bed device 30 (for example, whether or not a diagnostic image has been taken). , Learn their relationships. The learning result by the learning function 57 is reflected in, for example, a condition for causing the display control function 56 to display a message prompting the user to review the input contents. The learning result is appropriately reflected in the reference workflow 41-1 of the memory 41 described later.

The additional function 58 adds a condition for causing the display control function 56 to display a message prompting the review of the input content based on the learning result of the learning function 57. The conditions to be added are reflected in the reference workflow 41-1 of the memory 41 described later.

With the above configuration, the X-ray CT apparatus 1 scans the subject P in a scanning mode such as a helical scan, a conventional scan, and a step-and-shoot. The helical scan is a mode in which the rotating frame 17 is rotated while the top plate 33 is moved to spirally scan the subject P. The conventional scan is a mode in which the rotating frame 17 is rotated while the top plate 33 is stationary to scan the subject P in a circular orbit. The step-and-shoot is a mode in which the position of the top plate 33 is moved at regular intervals to perform a conventional scan in a plurality of scan areas.

FIG. 2 is a diagram for explaining the display control function 56. The display control function 56 includes, for example, a reception function 56-1, a determination function 56-2, and a message display control function 56-3.

Among the input operations received by the input interface 43, the reception function 56-1 inputs the input of the operator who operates the bed device 30 or the gantry device 10 and the input of the operator regarding the shooting conditions, which is displayed on the display 42. Accept via screen. The one having both the input interface 43 and the reception function 56-1 is an example of the "reception unit".

The determination function 56-2 determines whether or not there is a possibility of an operation error in the input contents of the operator received by the reception function 56-1. The determination function 56-2 is an example of the "determination unit".

The determination function 56-2 evaluates the degree to which the input content deviates from the predetermined standard workflow, and when the evaluated degree is equal to or higher than the standard, there is a possibility of an operation error. Is determined. When the judgment function 56-2 evaluates with a multi-step status such as the degree of possibility of operation error (for example, "high possibility", "medium possibility", "low possibility", etc. Which status it corresponds to) may be determined.

The message display control function 56-3 supports the operation input of the bed device 30 and the gantry device 10 on the display 42 when it is determined that there is a possibility of an operation error based on the determination result of the determination function 56-2. Display an image containing a message to do so. The message display control function 56-3 is an example of a “display control unit”.

The message display control function 56-3 uses the display frame already displayed by the display 42 to call attention based on the content of the input determined by the determination function 56-2 that there is a possibility of an operation error. The image is displayed on the display 42, or a new display frame is popped up to display the image for calling attention on the display 42. The message display control function 56-3 calls attention by changing a part of the input screen based on the content of the input received by the reception function 56-1, or pops up a new display frame to be careful. Decide whether to arouse. The message display control function 56-3 determines the alert to be executed according to the possibility of an operation error determined by the determination function 56-2.

FIG. 3 is a diagram showing an example of data stored in the memory 41. The memory 41 includes, for example, a reference workflow 41-1, an operation history 41-2, a display message 41-3, and the like.

The reference workflow 41-1 includes information on the input order of standard settings for the bed device 30 and the pedestal device 10 and the setting conditions. The reference workflow 41-1 may be a set of threshold values for the determination function 56-2 to determine whether or not the operation input related to the bed device 30 and the gantry device 10 is an input error, or the bed device 30. And the recommended condition (optimal value) of the operation input regarding the gantry device 10.

FIG. 4 is a diagram showing an example of information included in the reference workflow 41-1. The reference workflow 41-1 includes, for example, information on the gender, age, and body shape of the subject P, and information on the imaging conditions (tube current, tube voltage, etc.) of the diagnostic image.

The operation history 41-2 indicates whether or not the input interface 43 has accepted the re-input after the content of the input received by the input interface 43, the display result of the message display control function 56-3, and the display by the message display control function 56-3. Information such as the result, the content of the input, and the shooting result is included. The operation history 41-2 is information referred to when the learning function 57 performs the learning process.

FIG. 5 is a diagram showing an example of information included in the operation history 41-2. Similar to the reference workflow 41-1, the operation history 41-2 includes information on the gender, age, and body shape of the subject P, and information on the imaging conditions (tube current, tube voltage, etc.) of the diagnostic image. Further, in the operation history 41-2, information on whether the shooting result (for example, the content of the input received by the input interface 43 was used as it is for shooting the diagnostic image or whether the input was corrected, and the re-examination of the diagnostic image are performed. Information such as whether or not the image was taken) and the determination result by the determination function 56-2 are included.

The display message 41-3 includes a display condition of an image to be displayed on the display 42, a display mode, a message image to be displayed, and the like when it is determined that there is a possibility of an operation error.

6 and 7 are diagrams showing an example of the information included in the display message 41-3. FIG. 6 is an example of setting information for a message image displayed around the input frame displayed on the display 42.

When the message image is displayed in the input frame, the message display control function 56-3 is in a state where the input frame is selected (for example, when the character input cursor is in the input frame or when the mouse is on-mouse). ) Displays a message image. When the message image is displayed in the input frame, the message display control function 56-3 may hide the message image after a predetermined time (for example, about 5 [sec] after the selection state is released) has elapsed.

When, for example, the determination function 56-2 determines that the message display control function 56-3 has a high possibility of an operation error, the message display control function 56-3 refers to the display message 41-3 and warns in the corresponding input frame. Display the icon. Further, when the determination function 56-2 determines that the possibility of an operation error is moderate, the message display control function 56-3 corresponds to the message display control function 56-3 with reference to the display message 41-3. Display a caution icon in the input box. Further, when the message display control function 56-3 is determined by the determination function 56-2 that the possibility of an operation error is low, for example, the message display control function 56-3 refers to the display message 41-3 and is within the corresponding input frame. Check to display the OK icon.

The message display control function 56-3 may display a message image using the image itself of the input frame. In that case, the display mode may be changed depending on whether the input frame is an input type or a selection type such as a pull-down menu. FIG. 7 is an example of setting information of the display mode of the input frame itself displayed on the display 42.

When the message display control function 56-3 determines, for example, that the determination function 56-2 has a high possibility of an operation error, the message display control function 56-3 refers to the display message 41-3 and turns the corresponding input frame red. change. When the message display control function 56-3 determines that there is a high possibility of an operation error by the determination function 56-2, if the input frame is a selection type, the corresponding input frame is changed to red, and the input frame is further changed to red. Display an animation that blinks the border of. Further, the message display control function 56-3 changes the corresponding input frame to red if the input frame is an input type when it is determined by the determination function 56-2 that there is a high possibility of an operation error. Display an animation that vibrates the border of the input frame.

Further, the message display control function 56-3 is different from the case where it is determined that the possibility of an operation error is high when the determination function 56-2 determines that the possibility of an operation error is moderate. The message image of the display mode is displayed. For example, when the message display control function 56-3 determines that the possibility of an operation error is moderate by the determination function 56-2, the message display control function 56-3 refers to the display message 41-3 and turns the corresponding input frame in yellow. Change to. When the judgment function 56-2 determines that the possibility of an operation error is moderate, the message display control function 56-3 changes the corresponding input frame to yellow if the input frame is a selection type, and further inputs. Display an animation that blinks the border of the frame for 2 seconds. Further, when the judgment function 56-2 determines that the possibility of an operation error is moderate, the message display control function 56-3 changes the corresponding input frame to yellow if the input frame is an input type. Furthermore, an animation that vibrates the border of the input frame is displayed.

Further, in the message display control function 56-3, when it is determined by the determination function 56-2 that the possibility of an operation error is low, it is determined that there is a high possibility of an operation error, or the operation error occurs. Display a message image in a display mode different from the case where it is determined that there is a moderate possibility. For example, the message display control function 56-3 does not need to attract the attention of the operator when it is determined by the determination function 56-2 that the possibility of an operation error is low, so that the display message 41-3 is displayed. Refer to it and do not change the display of the image of the corresponding input frame.

[Display example 1]
8 and 9 are diagrams showing an example of an image displayed on the display 42 when electrocardiography (electrocardiographic synchronous imaging) is performed using the X-ray CT apparatus 1. Electrocardiography is an image that predicts the heartbeat pattern of subject P by acquiring an electrocardiogram of subject P and reconstructs an image that is less affected by the heartbeat (an image that appears to have stopped moving the heart). The method. In the case of electrocardiography, the image processing function 54 irradiates X-rays only at the moment when the movement of the heart seems to have stopped to acquire an image, or irradiates X-rays over time to obtain a specified heart rate. Only the image at the moment when the minute (hereinafter referred to as the captured heart rate) is stopped is extracted, and the data is stitched together to reconstruct the image. Therefore, the operator of the X-ray CT apparatus 1 needs to carefully set the imaging heart rate and the imaging parameters such as the scan rotation speed and the helical pitch.

The determination function 56-2 refers to the reference workflow 41-1 and compares the content input by the operator with the reference workflow for electrocardiography to see if there is a possibility of input error of each parameter. To judge. The message display control function 56-3 displays, for example, a message image on the display 42 that alerts the operator of the X-ray CT apparatus 1 about the input content based on the determination result when the determination is made by the determination function 56-2. ..

FIG. 8 is an example of the screen IM1 displayed on the display 42 when it is determined by the determination function 56-2 that the possibility of input error of each parameter is low. On the screen IM1, a scan protocol designation frame C1, input formats IF1 to IF4 for parameters that accept input and selection by the operator, a decision button B1, and the like are arranged. The scan protocol includes information such as imaging conditions for X-ray CT imaging, contrast conditions, image display methods, presence / absence of parameters for accepting input by an operator, and types of input formats.

FIG. 9 is an example of the screen IM1W displayed on the display 42 when it is determined by the determination function 56-2 that there is a possibility of parameter input error.

In the determination function 56-2, for example, the heart rate of the subject P is higher (faster) than the optimum value, the setting of the shooting heart rate of the input format IF3W is changed from 1 to 2, and the reference workflow 41-1 shoots. If there is no workflow with a heart rate setting of 2 (or low reliability), the possibility of an input error is judged to be moderate. This is because when the setting condition of the shooting heart rate of the input format IF3W shown in the figure deviates from the reference workflow 41-1, the shooting parameters such as the shooting heart rate, the scan rotation speed, and the helical pitch are appropriate. It may disappear. In addition, if the captured heart rate deviates significantly from the reference workflow 41-1, the exposure dose of the subject P may increase, the number of imagings may increase, and the image quality of the scanned image may deteriorate.

At this time, the message display control function 56-3 informs the operator by changing the color of the frame of the input format IF3W or vibrating the frame with reference to the display message 41-3 shown in FIG. Call attention. The message display control function 56-3 may further display a message MSG1 indicating the determination content by the determination function 56-2 in the vicinity of the input format IF3.

[Display example 2]
10 and 11 are diagrams showing an example of an image displayed on the display 42 when performing chest CT imaging using the X-ray CT apparatus 1. The determination function 56-2 refers to the reference workflow 41-1 and compares the content input by the operator with the reference workflow for chest CT imaging to see if there is a possibility of input error of each parameter. To judge.

FIG. 10 is an example of the screen IM2 displayed on the display 42 when it is determined by the determination function 56-2 that the possibility of input error of each parameter is low. On the screen IM2, a scan protocol designation frame C2, display frames PI1 to PI3 for displaying body characteristic data of subject P, input formats IF5 to IF6 for parameters that accept input and selection by an operator, a decision button B2, and the like are arranged. Has been done.

For example, the set value of the tube current of the input format IF5 is that the tube current is insufficient or excessive when the subject P is not a standard body shape (for example, is excessively thin or obese). Since the possibility is high, it is often changed as appropriate by the operator. The determination function 56-2 refers to the combination of parameters such as the body weight, body shape, scan image quality, and tube current of the subject included in the reference workflow 41-1, and the set value of the tube current of the input format IF5 is an input error. Determine if there is a possibility of.

FIG. 11 is an example of the screen IM2E displayed on the display 42 when it is determined by the determination function 56-2 that there is a possibility of a parameter input error.

In the determination function 56-2, for example, when the tube current input to the input format IF5E is larger than the reference workflow 41-1, the exposure dose of the subject P is likely to increase, so that there is a possibility of an input error. Judge as high.

The message display control function 56-3 displays a warning icon image IME in the input format IF5E with reference to the display message 41-3 shown in FIG. 6 to alert the operator.

[Display example 3]
12 and 13 are diagrams showing an example of an image displayed on the display 42 when breath-holding guidance is performed using the X-ray CT device 1. The determination function 56-2 refers to the reference workflow 41-1 and compares the content input by the operator with the reference workflow for breath-holding guidance, and is more preferable than the parameter input content (recommended content). ) Is present or not.

When the subject P needs to hold his / her breath when taking an image of the X-ray CT apparatus 1, the image may be displayed on a dedicated monitor that can confirm the timing of the breath holding while the subject P is placed on the top plate 33. Guidance is provided by voice guidance. When the subject P is young or old, the timing of breath holding may be delayed from the timing of guidance. Therefore, it may be necessary to adjust the imaging timing and the breath-holding timing (including the delay in the reaction of the subject P).

FIG. 12 is an example of the screen IM3 displayed on the display 42 when the determination function 56-2 determines that the possibility of parameter input error is low. On the screen IM3, display frames PI4 to PI5 for displaying the data of the subject P itself, an input format IF7 for parameters that accept input and selection by the operator, a decision button B3, and the like are arranged.

The input format IF7 is an input format that accepts settings for how much the breath-holding timing of the subject P is delayed from the guidance timing and how much the imaging timing and the guidance timing are shifted. The determination function 56-2 is based on the age of the subject P and the setting of how much the breath-holding timing of the subject P input in the input format IF7 is delayed from the guidance timing, and the reference workflow 41-1 If the input value of the input format IF7 deviates from the recommended value, it is determined that there is a possibility of an operation error. The message display control function 56-3 causes the display 42 to display a message regarding the recommended value when it is determined by the determination function 56-2 that there is a possibility of an operation error.

FIG. 13 is an example of the screen IM3W displayed on the display 42 when it is determined by the determination function 56-2 that there is a possibility of an input error.

The determination function 56-2 determines, for example, that the set number of seconds for shifting the shooting timing and the guidance timing input to the input format IF7W does not match the recommended set number of seconds "2 seconds". At this time, the message display control function 56-3 alerts the operator by changing the color of the frame of the input format IF7W or vibrating the frame with reference to the display message 41-3. .. The message display control function 56-3 may further display a message MSG2 indicating the determination content by the determination function 56-2 in the vicinity of the input format IF7W.

[Display example 4]
14 and 15 are diagrams showing an example of an image displayed on the display 42 when the scan imaging range is adjusted using the X-ray CT apparatus 1. The determination function 56-2 refers to the reference workflow 41-1 to determine whether or not the input content of the scan shooting range is appropriate, or whether or not there is a more suitable content (recommended content). Or something.

The determination function 56-2 is based on, for example, the image captured by the camera 19 and the input contents of parameters related to the lying position of the subject P, the photographing range, the movable information of various devices, and the like input by the operator. When it is determined that the shooting range is insufficient, the message display control function 56-3 is made to display a message to alert the operator. Further, the determination function 56-2 causes the message display control function 56-3 to display a message to alert the operator when it is determined that the shooting range is not insufficient but the shooting range is different from the recommended shooting range.

FIG. 14 is an example of the screen IM4 displayed on the display 42 when the determination function 56-2 determines that the possibility of parameter input error is low. On the screen IM4, a scan protocol designation frame C3, parameter input formats IF8 to IF10 for accepting input and selection by the operator, a decision button B4, and the like are arranged.

The input format IF10 is an input format that accepts the setting of the dynamic range of the image. The determination function 56-2 refers to the reference workflow 41-1 when it is determined that the shooting range is insufficient with the setting of the dynamic range input to the input format IF10, or when it is not insufficient but different from the recommended shooting range. If it is determined, the message display control function 56-3 is made to display a message to alert the operator.

FIG. 15 is an example of the screen IM4E displayed on the display 42 when it is determined by the determination function 56-2 that the shooting range is insufficient. In this case, a pop-up message MSG3 is displayed in order to strongly alert the operator that the dynamic range setting input to the input format IF10 needs to be changed. The pop-up message MSG4 is displayed as the frontmost window of the display 42 until the OK button B5 is pressed.

The determination function 56-2 also pops up when the input content of the operator clearly exceeds the threshold value (for example, if the numerical value is set, the number of digits is different, the required input item is blank, etc.). Display an expression message to alert the operator. The pop-up message, which is a new display frame, may be hidden after a lapse of a predetermined time.

FIG. 16 is a diagram showing an example of the image IM4E2 displayed on the display 42 when the scan imaging range is adjusted by using the X-ray CT apparatus 1. The image IM4E2 is a modification of the screen IM4E shown in FIG. When a pop-up message is displayed, the operator may find the operation of pressing the OK button B5 annoying, while the operation continues without correcting the input error only by displaying the error message as shown in FIG. There is a possibility that it will be done.

Therefore, the message display control function 56-3 cannot press the enter button B4 in addition to changing the color of the frame of the input format F10E and displaying the message MSG4 with reference to the display message 41-3. By doing so, the operator is strongly warned that it is necessary to change the setting of the dynamic range input to the input format IF10. These images for calling attention (images of a part of the changed input screen) and images for prompting correction of the input contents may be hidden after a lapse of a predetermined time.

[Display example 5]
17 and 18 are diagrams showing an example of an image displayed on the display 42 when notifying that the input contents have been reset. The determination function 56-2 determines whether or not it is necessary to notify that the input contents have been reset. The determination function 56-2 pops up in the message display control function 56-3 when the setting contents of items other than the specific input item for which the input has already been accepted are changed due to the input of the specific input item. Display the message of the expression to call attention.

FIG. 17 is an example of the screen IM5 displayed on the display 42 when the input of the parameter has already been accepted. For example, when the input formats IF11 to IF12 displayed on the screen IM5 are changed or the values entered in the input format are reset according to the type of the scan protocol specified in the scan protocol designation frame C4, a message is displayed. The control function 56-3 displays a pop-up message to alert the operator.

FIG. 18 is an example of the screen IM5W displayed on the display 42 when the parameter input is reset. When the value already entered in the input format is reset due to the change in the type of scan protocol specified in the scan protocol specification frame C4, the message display control function 56-3 operates by displaying the pop-up message MSG5. Attention to the person.

Further, when the determination function 56-2 is set for high image quality in the shooting settings, but there is a contradiction in the settings, for example, the setting for standard image quality is set in the reconstruction setting. It is determined that there is a possibility of an input error.

Also, if you perform an operation such as adding a shooting phase, the default value may be entered in the input format. The determination function 56-2 determines that the possibility of an input error is low if it is a daily operation that no input parameter is modified from the default setting (if it is reflected in the reference workflow 41-1). , It is judged that there is a high possibility of input error unless it is a daily operation that no input parameter is corrected from the default setting. Even in such a case, the message display control function 56-3 displays a message image for calling attention as to whether the default value can be used.

[Display example 6]
Further, the determination function 56-2 determines that there is a possibility of an input error when the input setting and the output setting are not aligned, and causes the message display control function 56-3 to display a message image to call attention. .. FIG. 19 is a diagram showing an example of the screen IM6W displayed on the display 42 when the input setting and the output setting are not aligned.

In the screen IM6W, the input frame F1 that accepts the setting related to the shooting condition, which is the input setting, accepts the input parameter in the case of high image quality. On the other hand, the input frame F2 that accepts the setting related to the reconstruction condition, which is the output setting, accepts the input parameter when the image quality is low, and the settings are not complete. Therefore, the determination function 56-2 determines that there is a possibility of an input error. The message display control function 56-3 displays, for example, a caution icon image IMW at a location where the settings are not complete (input format IF13W and input format IF15W in the illustrated example) to alert the operator. I do.

As shown in Display Example 1 to Display Example 6, the input format already displayed by the display 42 based on the content of the input determined by the message display control function 56-3 that there is a possibility of an operation error. By using the IF to display an icon image for alerting, changing the display mode of the input format IF itself, or displaying a new pop-up message image, the operator can display a pop-up message. It is possible to reduce the amount of operation of the input interface 43 as compared with the case where the attention is issued only by the image. Therefore, the usability of the operator of the X-ray CT apparatus 1 is improved.

Further, a warning displayed by the message display control function 56-3 for alerting using the input format IF displayed by the display 42 based on the content of the input determined that there is a possibility of an operation error. Change the level in multiple stages such as "Check OK", "Caution required", "Error", etc. to display an icon image according to the warning level near the input format IF, or change the color of the input format IF. By making changes, the operator can intuitively understand the input check result.

[Processing flow]
FIG. 20 is a flowchart showing an example of the flow of display processing performed when the input interface 43 receives the input of the operator in the X-ray CT apparatus 1.

First, the reception function 56-1 is received by the input interface 43 and receives the input contents of the operator (step S100). Next, the determination function 56-2 evaluates the degree to which the content of the input received in step S100 deviates from the predetermined reference workflow 41-1 (step S102). Next, the determination function 56-2 determines whether or not there is a possibility of an input error based on the evaluation result in step S102 (step S104). When the determination function 56-2 determines that there is a possibility of an input error, the message display control function 56-3 displays an image for alerting the operator with reference to the display message 41-3 (). Step S106). Step S106 will be described later with reference to FIGS. 21 and 22. When the determination function 56-2 determines that there is no possibility of an input error, the message display control function 56-3 refers to the display message 41-3 and tells the operator that the check result is OK (input). An image showing that there is no possibility of error or it is determined to be low) is displayed (step S108). The process of step S108 may be omitted. This is the end of the description of the processing of this flowchart.

FIG. 21 is a flowchart showing an example of the flow of the message image display process by the message display control function 56-3. The flowchart shown in FIG. 21 is a message image when the message display control function 56-3 controls to display a pop-up message when the determination function 56-2 determines that the possibility of an input error is extremely high. This is an example of the flow of display processing.

First, the determination function 56-2 determines whether or not there is an extremely high possibility of an input error (step S200). When it is determined that the possibility of an input error is extremely high, the message display control function 56-3 displays a pop-up message image (step S202). If the determination function 56-2 does not determine that the possibility of an input error is extremely high, the determination function 56-2 determines whether or not the possibility of an input error is high (step S204). When it is determined that the possibility of an input error is high, the message display control function 56-3 refers to the display message 41-3 and displays a message image when the possibility of an input error is high (step S206). .. When it is determined that the possibility of input error is not high (medium), the message display control function 56-3 refers to the display message 41-3, and the possibility of input error is medium. Message image is displayed (step S208). This is the end of the description of the processing of this flowchart.

FIG. 22 is a flowchart showing another example of the flow of the message image display process by the message display control function 56-3. The flowchart shown in FIG. 22 shows an example of the flow of the message image display process when the message display control function 56-3 controls not to display the pop-up type message.

First, the determination function 56-2 determines whether or not there is a high possibility of an input error (step S300). When it is determined that the possibility of an input error is high, the message display control function 56-3 refers to the display message 41-3 and displays a message image when the possibility of an input error is high (step S302). .. When it is determined that the possibility of input error is not high (medium), the message display control function 56-3 refers to the display message 41-3, and the possibility of input error is medium. Message image is displayed (step S304). This is the end of the description of the processing of this flowchart.

According to at least one embodiment described above, the input interface 43 that accepts the input of the operator and the determination function 56-2 that determines whether or not there is a possibility of an operation error in the contents of the received input. When it is determined that there is a possibility of an operation error, the display 42 is provided with a message display control function 56-3 for displaying an image including a message for assisting the operation input, and a message display control function 56-. In No. 3, based on the content of the input determined that there is a possibility of an operation error, an image for calling attention is displayed using the display frame already displayed by the display 42, or a new pop-up type is displayed. By switching whether to display the message of, it is possible to give necessary attention without unnecessarily increasing the number of operations of the operator of the X-ray CT apparatus 1.

Although some embodiments have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, as well as in the scope of the invention described in the claims and the equivalent scope thereof.

1 X-ray CT device 10 Stand device 17 Rotating frame 18 Control device 19 Camera 30 Sleeper device 31 Base 32 Sleeper drive device 33 Top plate 34 Support frame 40 Console device 50 Processing circuit 56 Display control function 56-2 Judgment function 56-3 Message display control function 57 Learning function 58 Additional function

Claims (14)

A reception unit that accepts the input of the operator who operates the bed device or the gantry device included in the diagnostic device via the input screen displayed on the display unit.
Display control that determines whether to call attention by changing a part of the input screen or to pop up a new display frame to call attention based on the content of the input received by the reception unit. Department and
A medical processing device. Further provided with a determination unit for determining the possibility of an operation error regarding the content of the input.
The display control unit determines the alert to be executed according to the possibility of the operation error.
The medical processing device according to claim 1. The determination unit evaluates the degree to which the content of the input deviates from the reference workflow, and determines that there is a possibility of an operation error when the evaluated degree is equal to or higher than the reference.
The medical processing device according to claim 2. The determination unit pops up the new display frame when the setting contents of items other than the first input item are changed due to the input of the first input item received by the reception unit. An image for calling attention is displayed on the display unit.
The medical processing device according to claim 3. A part of the modified image of the input screen and the new display frame are hidden after a lapse of a predetermined time.
The medical processing device according to claim 3 or 4. When performing electrocardiography, the determination unit evaluates the degree of deviation from the workflow in which the setting of the imaging heart rate is the standard among the contents of the input, and when the evaluated degree is equal to or higher than the standard. , Judge that there is a possibility of operation error,
The medical processing device according to any one of claims 2 to 5. The determination unit evaluates the degree of deviation from the workflow in which the setting of the tube current or the tube voltage is the reference based on the body shape of the subject among the contents of the input, and the evaluated degree is equal to or higher than the reference. In some cases, it is determined that there is a possibility of operation error.
The medical processing device according to any one of claims 2 to 5. When the subject is made to hold his / her breath, the determination unit may make an operation error if the setting of the adjustment time of the imaging start timing from the breath holding guide deviates from the recommended value in the input contents. It is determined that there is, and the display control unit is made to display a message regarding the recommended value.
The medical processing device according to any one of claims 2 to 5. The determination unit determines whether or not the imaging range is insufficient among the contents of the input based on the lying position and posture of the subject, and if it is determined that the imaging range is insufficient, there is a possibility of an operation error. Judge that there is,
The medical processing device according to any one of claims 2 to 5. When the setting content of an item other than the first input item is changed due to the input of the first input item received by the reception unit, the display control unit has the setting content of the display unit. Display the image for calling attention at the display location of the item for which the change has occurred.
The medical processing device according to any one of claims 1 to 9. A reception unit that accepts the input of the operator who operates the bed device or the gantry device included in the diagnostic device via the input screen displayed on the display unit.
Based on the content of the input received by the reception unit, a part of the input screen is changed to call attention, or an image for prompting correction of the content of the input is displayed on the display unit. And the display control unit that decides whether to call attention
A medical processing device. Further provided with a determination unit for determining the possibility of an operation error regarding the content of the input.
The display control unit determines the alert to be executed according to the possibility of the operation error.
The medical processing device according to claim 11. A part of the changed image of the input screen and the image for prompting the correction of the content of the input are hidden after a lapse of a predetermined time.
The medical processing device according to claim 11 or 12. The display control unit
When an image for prompting correction of the input content is displayed and the input content is not corrected, the screen for proceeding with the diagnostic process by the diagnostic device is not displayed.
The medical processing device according to any one of claims 11 to 13.

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