JP2014113209A - X-ray diagnostic apparatus and control program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus improving manipulative efficiency by simplifying operation by an operator: and to provide a control program.SOLUTION: An X-ray diagnostic apparatus includes a gaze point acquisition unit 211 and an object selection unit 212. The gaze point acquisition unit 211 acquires information on a gaze point of an operator. The object selection unit 212 selects a function to be executed and an object for the function to be executed on the basis of the information on the gaze point of the operator which is acquired by the gaze point acquisition unit 211.

Description

  Embodiments described herein relate generally to an X-ray diagnostic apparatus and a control program.

  Conventionally, in an X-ray diagnostic apparatus, buttons associated with each function are operated in order to execute various functions. For example, various functions such as image reproduction, enlargement, 3D image rotation, fluoroscopy, shooting, and image storage are executed by operating buttons (hardware and software) that are assigned to each function. Here, when there are a plurality of targets to which the function is applied, such a function is selected before the execution of the function.

  For example, when an image is displayed on each of a plurality of monitors, when applying a function such as image enlargement or image storage, the function is first applied to an image displayed on which monitor. After the selection is made, image enlargement, image saving, and the like are executed by operating each button. However, in the above-described prior art, the operation by the operator is complicated, and the efficiency of the procedure may be reduced.

JP 2012-179281 A

  The problem to be solved by the present invention is to provide an X-ray diagnostic apparatus and a control program that can simplify the operation by the operator and improve the efficiency of the procedure.

  The X-ray diagnostic apparatus according to one embodiment includes an acquisition unit and a selection unit. The acquisition unit acquires information on the operator's gaze point. The selection unit selects a function to be executed and a target of the function to be executed based on the operator's gaze information acquired by the acquisition unit.

FIG. 1 is a diagram illustrating an example of the configuration of the X-ray diagnostic apparatus according to the first embodiment. FIG. 2 is a diagram illustrating an example of a procedure using the X-ray diagnostic apparatus according to the first embodiment. FIG. 3 is a diagram illustrating an example of the configuration of the system control unit according to the first embodiment. FIG. 4 is a diagram for explaining an example of processing by the gazing point acquisition unit according to the first embodiment. FIG. 5 is a diagram illustrating an example of processing performed by the mouse cursor setting unit according to the first embodiment. FIG. 6 is a diagram illustrating an example of processing performed by the region selection unit according to the first embodiment. FIG. 7 is a diagram illustrating an example of processing performed by the function selection unit according to the first embodiment. FIG. 8 is a diagram illustrating an example of processing performed by the function selection unit according to the first embodiment. FIG. 9 is a diagram illustrating an example of processing using time information by the function selection unit according to the first embodiment. FIG. 10 is a diagram illustrating an example of processing performed by the operator identification unit according to the first embodiment. FIG. 11 is a flowchart illustrating a processing procedure performed by the X-ray diagnostic apparatus according to the first embodiment.

(First embodiment)
First, the configuration of the X-ray diagnostic apparatus 100 according to the first embodiment will be described. FIG. 1 is a diagram illustrating an example of a configuration of an X-ray diagnostic apparatus 100 according to the first embodiment. As shown in FIG. 1, the X-ray diagnostic apparatus 100 according to the first embodiment includes a high voltage generator 11, an X-ray tube 12, an X-ray diaphragm device 13, a top plate 14, and a C arm 15. And an X-ray detector 16. In addition, the X-ray diagnostic apparatus 100 according to the first embodiment includes a C-arm rotation / movement mechanism 17, a top board movement mechanism 18, a C-arm / top board mechanism control section 19, an aperture control section 20, and a system. A control unit 21, an input unit 22, and a display unit 23 are provided. The X-ray diagnostic apparatus 100 according to the first embodiment includes an image data generation unit 24, an image data storage unit 25, an image processing unit 26, and a line-of-sight recognition device 30.

  The high voltage generator 11 generates a high voltage under the control of the system control unit 21 and supplies the generated high voltage to the X-ray tube 12. The X-ray tube 12 generates X-rays using the high voltage supplied from the high voltage generator 11. The X-ray diaphragm 13 narrows the X-ray generated by the X-ray tube 12 under the control of the diaphragm controller 20 so as to selectively irradiate the region of interest of the subject P. For example, the X-ray diaphragm device 13 has four slidable diaphragm blades. The X-ray diaphragm 13 narrows down the X-rays generated by the X-ray tube 12 and irradiates the subject P under the control of the diaphragm controller 20 by sliding these diaphragm blades. The top 14 is a bed on which the subject P is placed, and is placed on a bed (not shown). The subject P is not included in the X-ray diagnostic apparatus 100.

  The X-ray detector 16 detects X-rays that have passed through the subject P. For example, the X-ray detector 16 has detection elements arranged in a matrix. Each detection element converts the X-rays that have passed through the subject P into electrical signals and accumulates them, and transmits the accumulated electrical signals to the image data generation unit 24.

  The C arm 15 holds the X-ray tube 12, the X-ray diaphragm device 13, and the X-ray detector 16. The X-ray tube 12 and the X-ray diaphragm 13 and the X-ray detector 16 are arranged so as to face each other with the subject P sandwiched by the C arm 15.

  The C-arm rotating / moving mechanism 17 is a mechanism for rotating and moving the C-arm 15, and the top board moving mechanism 18 is a mechanism for moving the top board 14. The C arm / top plate mechanism control unit 19 controls the C arm rotation / movement mechanism 17 and the top plate movement mechanism 18 under the control of the system control unit 21, thereby rotating and moving the C arm 15 and the top plate 14. Adjust the movement. The aperture control unit 20 controls the irradiation range of the X-rays irradiated to the subject P by adjusting the aperture of the aperture blades of the X-ray aperture device 13 under the control of the system control unit 21. .

  The image data generation unit 24 generates image data using the electrical signal converted from the X-rays by the X-ray detector 16, and stores the generated image data in the image data storage unit 25. For example, the image data generation unit 24 performs current / voltage conversion, A (Analog) / D (Digital) conversion, and parallel / serial conversion on the electrical signal received from the X-ray detector 16 to generate image data. To do.

  The image data storage unit 25 stores the image data generated by the image data generation unit 24. The image processing unit 26 performs various image processing on the image data stored in the image data storage unit 25. For example, the image processing unit 26 generates a captured image that is an X-ray transmission image of the subject using the captured data collected by exposing the subject P to X-rays. In addition, the image processing unit 26 generates a fluoroscopic image using fluoroscopic data collected at a lower dose than when photographing data is collected. Note that the fluoroscopic image is not always stored in the image data storage unit 25. In the present embodiment, the photographing data and the perspective data may be collectively referred to as image data. In the present embodiment, the captured image and the fluoroscopic image may be collectively described as an image.

  The input unit 22 receives various instructions from an operator such as a doctor or engineer who operates the X-ray diagnostic apparatus 100. For example, the input unit 22 includes a mouse, a keyboard, a button, a trackball, a joystick, an X-ray foot switch, and the like. The input unit 22 transfers the instruction received from the operator to the system control unit 21. For example, the input unit 22 has a plurality of buttons to which various functions (for example, image reproduction, enlargement, 3D image rotation, fluoroscopy, shooting, image storage, etc.) are assigned, and each button is pressed by the operator, for example. As a result, various instructions are accepted. The input unit 22 includes an X-ray foot switch that switches on / off of X-ray exposure related to fluoroscopy or radiography, and receives an X-ray exposure instruction.

  The display unit 23 displays a GUI (Graphical User Interface) for receiving an instruction from the operator, or an image such as a captured image or a fluoroscopic image. For example, the display unit 23 includes a plurality of monitors, and displays a captured image, a fluoroscopic image, and the like on each monitor. For example, each of the plurality of monitors of the display unit 23 is set as a fluoroscopic image dedicated monitor or a captured image dedicated monitor.

  The system control unit 21 controls the operation of the entire X-ray diagnostic apparatus 100. For example, the system control unit 21 controls the high voltage generator 11 in accordance with an operator instruction transferred from the input unit 22 and adjusts the voltage supplied to the X-ray tube 12, thereby irradiating the subject P. Controls X-ray dose and ON / OFF. Further, for example, the system control unit 21 controls the C arm / top plate mechanism control unit 19 in accordance with an instruction from the operator, and adjusts the rotation and movement of the C arm 15 and the movement of the top plate 14. Further, for example, the system control unit 21 controls the aperture control unit 20 in accordance with an instruction from the operator, and adjusts the aperture of the aperture blades of the X-ray aperture device 13 to irradiate the subject P. The X-ray irradiation range is controlled.

  Further, the system control unit 21 controls image data generation processing by the image data generation unit 24, image processing by the image processing unit 26, analysis processing, and the like according to an instruction from the operator. Further, the system control unit 21 performs control so that a GUI for receiving an instruction from the operator, an image stored in the image data storage unit 25 (for example, a captured image or a fluoroscopic image), and the like are displayed on the monitor of the display unit 23. To do.

  The line-of-sight recognition apparatus 30 acquires line-of-sight information of an operator such as a doctor or engineer who operates the X-ray diagnostic apparatus 100. Specifically, the line-of-sight recognition device 30 acquires information indicating where the operator's line of sight is directed on the X-ray diagnostic apparatus 100. For example, the line-of-sight recognition device 30 is a camera for photographing the operator. Details regarding the line-of-sight information will be described later.

  The example of the configuration of the X-ray diagnostic apparatus 100 according to the first embodiment has been described above. With this configuration, the X-ray diagnostic apparatus 100 can improve the efficiency of the procedure by simplifying the operation by the operator under the control of the system control unit 21 described in detail below. FIG. 2 is a diagram illustrating an example of a procedure using the X-ray diagnostic apparatus 100 according to the first embodiment. In the X-ray diagnostic apparatus 100 according to the first embodiment, for example, as shown in FIG. 2, a procedure such as intervention is performed while referring to a plurality of monitors by an operator.

  Here, the operator operates the catheter while stepping on the X-ray foot switch to cause the C-arm 15 to emit X-rays to the subject P and display a fluoroscopic image on the monitor. To do. Further, the operator enlarges or saves the image by operating the switches. In such a procedure, since the operator wants to use the function of the apparatus without moving the limbs as much as possible, a simpler operation system is desired.

  In a conventional X-ray diagnostic apparatus, when an image is enlarged or saved, a monitor on which an image to be operated is displayed is selected prior to the image, and the image displayed on the selected monitor is selected. Furthermore, it is required to select an image to be operated. Also, since X-ray footswitches are usually out of the field of view, the operator must search with their feet or visually confirm the correct switch, which is directly related to the procedure. There will be no extra behavior.

  Therefore, as shown in FIG. 2, the X-ray diagnostic apparatus 100 according to the first embodiment detects, for example, a gaze point that the operator gazes using a camera as the gaze recognition apparatus 30 and detects the gaze point that is detected. By executing the function based on the above, the operation at the time of executing the function provided in the X-ray diagnostic apparatus 100 is simplified, and the efficiency of the procedure is improved.

  FIG. 3 is a diagram illustrating an example of the configuration of the system control unit 21 according to the first embodiment. As illustrated in FIG. 3, for example, the system control unit 21 includes a gazing point acquisition unit 211, a target selection unit 212, a mouse cursor setting unit 213, a notification unit 214, and an operator identification unit 215. Various processes are executed based on the operator's line-of-sight information acquired by the recognition device 30.

  The gaze point acquisition unit 211 acquires information on the operator's gaze point. Specifically, the gazing point acquisition unit 211 acquires, as the gazing point information, the display unit 23, the image displayed on the display unit 23, the area in the image, or the information on which the holding device is gazed by the operator. . More specifically, the gazing point acquisition unit 211 includes a monitor provided in the display unit 23, an image displayed on the monitor, a region in the image, or a holding device that holds the X-ray detector 16 and the X-ray tube (for example, C Information on the gazing point that the operator gazes at (arm) is acquired.

  Hereinafter, an example of acquisition of a gaze point will be described. For example, the gazing point acquisition unit 211 detects the operator's line of sight (gaze direction) from the information acquired by the line-of-sight recognition device 30. At this time, the gazing point acquisition unit 211 also executes a process of detecting the position of the operator's eyes. The gazing point acquisition unit 211 detects the operator's viewpoint using the detected operator's line-of-sight direction and eye position. For example, the gaze point acquisition unit 211 detects a gaze point that is a point on which the operator gazes on the medical image displayed on the display surface of the display unit 23. Note that, as a gaze detection method and a viewpoint detection method by the gazing point acquisition unit 211, for example, a limbus that measures eye movement using a difference in light reflectance between the sclera (white eye) and the cornea (black eye). Any conventionally used method such as a tracking method (sclera reflection method) can be applied.

  Hereinafter, a case where a camera is used as the line-of-sight recognition device 30 will be described as an example. FIG. 4 is a diagram for explaining an example of processing by the gazing point acquisition unit 211 according to the first embodiment. Here, FIG. 4 shows a case where the display unit 23 includes five monitors from monitor A to monitor E, and the gazing point acquisition unit 211 acquires the gazing point on the monitor. Further, the x axis and the y axis shown in FIG. 4 are coordinate axes that constitute an orthogonal coordinate system stretched on the display surface of each monitor. These coordinates are arranged in a line-of-sight area detectable by the camera as the line-of-sight recognition device 30 and the gazing point acquisition unit 211. Information on these coordinates is stored in advance in a storage unit (not shown). Note that the coordinate information may be stored in the image data storage unit 25.

  For example, as shown in FIG. 4, the gazing point acquisition unit 211 detects the operator's line of sight from the operator's image captured by the camera as the line-of-sight recognition device 30, and detects the detected line of sight and the display surface of the monitor. The intersection 1 is calculated as line-of-sight information. For example, the gazing point acquisition unit 211 refers to the information on the coordinates stretched on the display surface of the monitor stored in the storage unit (not shown) or the image data storage unit 25, and uses the x-axis and y-axis. The coordinates of the intersection 1 of the line of sight and the display surface are calculated on the coordinate system of the stretched display surface. Then, the gazing point acquisition unit 211 acquires the information of the monitor B corresponding to the calculated coordinates of the intersection 1 on the coordinate system stretched by the x-axis and the y-axis from the coordinate information, and sends it to the target selection unit 212. Output.

  In the above-described example, the case where the monitor on which the operator's gazing point is obtained has been described. Next, a case where it is acquired which image displayed on the monitor has the gazing point will be described. In such a case, similarly to the above-described example, the gazing point acquisition unit 211 detects the operator's line of sight from the operator's image captured by the camera as the line-of-sight recognition device 30, and displays the detected line of sight and the monitor. The coordinates of intersection 1 with the surface are calculated. Then, the gazing point acquisition unit 211 acquires information on the pixel corresponding to the calculated coordinate in the pixel on the monitor B corresponding to the coordinate of the intersection 1 and acquires information on the image displayed on the acquired pixel. .

  Specifically, the gazing point acquisition unit 211 acquires information on the image displayed on the acquired pixel and information on the position (area) displayed on the acquired pixel in the image. For example, the gazing point acquisition unit 211 acquires the coordinates of the image at the position as the position of the image corresponding to the acquired pixel. Then, the gaze point acquisition unit 211 outputs the acquired coordinate information to the target selection unit 212.

  Next, a case where a gazing point in the holding device is acquired will be described. In the example of the monitor and the image described above, coordinate information for representing the intersection of the plane of the display surface of the display unit 23 (monitor) and the line of sight as point coordinates in an arbitrary two-dimensional coordinate system stretched on the display surface. The case where a gazing point is acquired by using it has been described. When acquiring the gaze point in the holding device, for example, coordinate information for representing the position of the operator's viewpoint acquired by the line-of-sight recognition device 30 in the position coordinate of the world coordinate system is used. In such a case, the position information of the holding device in the world coordinate system is included in advance in the coordinate information. This coordinate information is also stored in a storage unit (not shown) or the image data storage unit 25.

  For example, the gazing point acquisition unit 211 detects the operator's line of sight from the operator's image captured by the camera as the line-of-sight recognition device 30, and the intersection of the detected line of sight and the object having position coordinates in the world coordinate system The gazing point in the holding device is acquired depending on whether or not the position coordinates of the holding device are included in. That is, the gazing point acquisition unit 211 acquires the coordinates of the intersection point as a gazing point on the holding device when the intersection point between the detected line of sight and the object having position coordinates in the world coordinate system is the holding device.

  Returning to FIG. 3, the object selection unit 212 includes a monitor selection unit 212 a, a region selection unit 212 b, a holding device selection unit 212 c, and a function selection unit 212 d, and the operator acquired by the gaze point acquisition unit 211. The function to be executed and the target of the function to be executed are selected on the basis of the information of the gazing point. Specifically, the target selection unit 212 acquires the display unit 23, the image displayed on the display unit 23, the area in the image, or the information on the holding device acquired by the gazing point acquisition unit 211 as gazing point information. Based on the above, the function to be executed and the target of the function to be executed are selected.

  Hereinafter, an example in which the operation is simplified by using the gazing point acquired by the gazing point acquisition unit 211 will be described. First, as described above, in an X-ray diagnostic apparatus, when an image is enlarged or stored, it is required to select a monitor on which an image to be operated is displayed prior to that. However, in the X-ray diagnostic apparatus 100 according to the present embodiment, the above-described selection process can be omitted.

  In such a case, the operator only needs to look at the monitor on which the image to be enlarged or saved is displayed. That is, when the operator looks at the monitor on which the image is displayed, the gazing point acquisition unit 211 acquires the operator's gazing point, and acquires information on the monitor that the operator is viewing. The monitor selection unit 212a selects the monitor whose information is acquired by the gazing point acquisition unit 211 as the monitor to be operated. Thus, the operator need only operate the switch without performing an operation of selecting the monitor.

  Take an example. The operator can save the image displayed on the monitor as a map image simply by looking at the monitor on which the X-ray moving image is displayed and operating a switch assigned to save the map image. A map image is an image in which a specific frame is recorded as a still image among X-ray moving images. The map image is mainly used when the image is temporarily stored. On the other hand, a photo image is known as an image to be permanently stored.

  Thus, the X-ray diagnostic apparatus 100 according to the present embodiment can omit the monitor selection operation by the operator. In the above-described example, the case where the monitor image selected as the operation target is stored as a map image has been described, but this is merely an example. That is, various other functions can be executed on the monitor selected as the operation target.

  For example, the operator can move the mouse cursor to the monitor by looking at the monitor on which the GUI is to be operated. FIG. 5 is a diagram illustrating an example of processing performed by the mouse cursor setting unit 213 according to the first embodiment. As shown in FIG. 5, the display unit 23 includes a plurality of monitors. In such a case, one mouse cursor is used while moving between monitors. When the operator wants to operate the GUI, it is necessary to first find out which monitor the mouse cursor is on and move it to the monitor on which the GUI is to be operated.

  Therefore, in the X-ray diagnostic apparatus 100 according to the present embodiment, as shown in FIG. 5, the mouse cursor can be moved to the monitor simply by looking at the monitor on which the operator wants to operate the GUI. That is, as shown in FIG. 5, when the operator looks at the monitor C desiring to operate the GUI, the gazing point acquisition unit 211 acquires the gazing point of the operator, and the monitor C that the operator is viewing is displayed. Get information. The mouse cursor setting unit 213 moves the mouse cursor 2 into the monitor C acquired by the gazing point acquisition unit 211.

  Here, when moving the mouse cursor, the mouse cursor setting unit 213 moves the mouse cursor to the position that was last arranged in the destination monitor. That is, when the mouse cursor setting unit 213 moves the mouse cursor between monitors, the mouse cursor setting unit 213 acquires the coordinates at which the mouse cursor is finally placed and stores it in a storage unit (not shown). Then, when the mouse cursor setting unit 213 moves the mouse cursor again to the monitor before the movement, the mouse cursor setting unit 213 acquires information on the coordinates where the mouse cursor was last arranged from the storage unit, and moves the mouse cursor to the acquired coordinates. Let

  Note that the position where the mouse cursor was last placed is stored for each monitor, and the movement of the mouse cursor to the stored position is also applied when the operator selects a monitor using a switch or the like, for example. . That is, even when the operator manually selects a monitor, the mouse cursor setting unit 213 moves the mouse cursor to the last position on the monitor on the selected monitor, and at the end of the mouse cursor on the monitor before the movement. Remember the position. Thereby, the operation of searching for the mouse cursor and moving it to the monitor can be omitted.

  In the example described above, the case where the operator selects a monitor to be operated by looking at the monitor has been described. Next, a case where the image displayed on the selected monitor is viewed and the image is selected as an operation target will be described. FIG. 6 is a diagram illustrating an example of processing performed by the region selection unit 212b according to the first embodiment.

  For example, as shown in FIG. 6, the operator looks at the area where the image A <b> 1 is displayed, so that the gazing point acquisition unit 211 acquires the gazing point of the operator, and information ( Get coordinate information). The area selection unit 212b selects an area for which information has been acquired by the gazing point acquisition unit 211 as an operation target area. Thus, the operator only needs to operate the switch without performing an operation of selecting an area. Note that the operator's gazing point and the area are associated with each other and stored in a storage unit (not shown). That is, a storage unit (not shown) stores information on coordinates included in each area where an image or the like is displayed. Therefore, the area selection unit 212b refers to the coordinate information for each area stored in the storage unit (not shown), and the information on the area including the coordinates from the operator's coordinates acquired by the gazing point acquisition unit 211. To get.

  For example, the operator can rotate or enlarge the image A1 only by operating the switches to which the image rotation or enlargement is assigned while viewing the image A1. Here, if it is desired to perform the same operation on the image A2, the operator can set the image A2 as an operation target simply by looking at the image A2. That is, the operator can rotate or enlarge the image A2 simply by viewing the image A2 and operating the same switches.

  As described above, the X-ray diagnostic apparatus 100 according to the present embodiment can omit an area (image) selection operation by the operator. In the example described above, the case where the image selected as the operation target is rotated and enlarged has been described, but this is merely an example. That is, various other functions can be executed on the region (image) selected as the operation target.

  Here, the X-ray diagnostic apparatus 100 according to the present embodiment can also select a holding device such as a C-arm as an operation target. For example, when the operator looks at the C-arm 15 illustrated in FIG. 2, the gazing point acquisition unit 211 acquires the operator's gazing point, and acquires information on the holding device that the operator is viewing. The holding device selection unit 212c selects the holding device whose information has been acquired by the gazing point acquisition unit 211 as an operation target such as rotation or movement of the arm. Thus, for example, the operator only has to operate a switch assigned to rotation or movement without performing an operation of selecting the C-arm 15.

  Thereby, the operator can omit the procedure of selecting the holding device, and further, a single operation system can be applied to a plurality of holding devices (for example, C arm and Ω arm). The procedure for selecting different switches for the Ω arm and the Ω arm can also be omitted. For example, the operator sets the arm (for example, C arm) in which the target of the operation system is viewed by looking at the arm (for example, C arm) to be operated. And the operator can operate the arm (for example, C arm) by which the operation target was set by operating the operation system.

  As described above, the X-ray diagnostic apparatus 100 according to the present embodiment can be selected by looking at the holding device to be operated. In other words, the holding device that is not seen by the operator can be set not to be operated. As a result, even if the operator mistakenly operates the switch, the operation itself can be invalidated, the efficiency of the procedure can be further improved, and the safety can be improved.

  Next, a description will be given of a case where an operation target or a function is selected depending on the relationship of what is watched by the operator. Specifically, the input unit 22 causes the first target to execute the first function by receiving an operation by the operator. Then, the function selection unit 212d is executed by the input unit 22 according to the operation received from the operator based on the information regarding the function related to the operator's gaze information acquired by the gaze point acquisition unit 211. The first function for the first target is changed to the second function.

  FIG. 7 is a diagram illustrating an example of processing performed by the function selection unit 212d according to the first embodiment. FIG. 7 shows a case where the monitor A is a fluoroscopic image monitor and the monitor B is a captured image monitor. For example, as shown in FIG. 7A, when the operator looks at monitor A, which is a fluoroscopic image dedicated monitor, the function selection unit 212d changes the X-ray foot switch to a fluoroscopic X-ray foot switch. Here, when the operator steps on the X-ray foot switch, fluoroscopic X-rays are exposed.

  On the other hand, as shown in FIG. 7B, when the operator looks at monitor B, which is a captured image dedicated monitor, the function selection unit 212d changes the X-ray foot switch to an X-ray foot switch for imaging. Here, when the operator steps on the X-ray foot switch, X-rays for photographing are exposed. Thereby, the same switch can be used for both fluoroscopy and radiography without visually confirming the X-ray foot switch.

  Further, the X-ray diagnostic apparatus 100 according to the first embodiment can change the function based on information associated with an image. FIG. 8 is a diagram illustrating an example of processing performed by the function selection unit 212d according to the first embodiment. FIG. 8 shows a case where the image A1 is a perspective image and the image A2 is a captured image. For example, as shown in FIG. 8A, when the operator views an image A1 that is a fluoroscopic image, the function selection unit 212d changes the X-ray foot switch to a fluoroscopic X-ray foot switch. Here, when the operator steps on the X-ray foot switch, fluoroscopic X-rays are exposed.

  On the other hand, as shown in FIG. 8B, when the operator views an image A2 that is a captured image, the function selection unit 212d changes the X-ray foot switch to an X-ray foot switch for imaging. Here, when the operator steps on the X-ray foot switch, X-rays for photographing are exposed. Thereby, the same switch can be used for both fluoroscopy and radiography without visually confirming the X-ray foot switch.

  In the example described above, the case where the X-ray foot switch is switched between fluoroscopy and radiographing based on the functions related to the monitor and the image has been described, but this is only an example. For example, if the switch is outside the normal field of view, the effect can be obtained by applying it.

  Next, an example will be described in which processing is executed according to the time being watched by the operator. For example, when the operator's gazing point information acquired by the gazing point acquisition unit 211 is an area in the image, the function selection unit 212d measures the time when the operator's gazing point is located in the area in the image. Then, a predetermined function is executed on the area on condition that a predetermined time has elapsed.

  FIG. 9 is a diagram illustrating an example of processing using time information by the function selection unit 212d according to the first embodiment. FIG. 9 shows a case where the image is magnified on the condition that the operator gazes at the image and the gaze time has passed a predetermined time. For example, when the operator is observing the area R1 of the image A1 as shown in FIG. 9A, the function selection unit 212d displays the remaining time “0:00:20” in the monitor A. Display.

  Here, when the operator observes the region R1 of the image A1 continuously for, for example, 20 seconds or longer, the function selection unit 212d covers the region R1 over the entire region of the image A1, as shown in FIG. 9B. Display an enlarged image of. As a result, the operator can enlarge and display the region of interest without any operation. The function after a predetermined time has elapsed is not limited to image enlargement, and can be arbitrarily set by the operator. For example, you may set so that operation of the X-ray aperture apparatus 13 or an X-ray attenuation filter (not shown) may be performed.

  In addition, the X-ray diagnostic apparatus 100 according to the present embodiment can continuously execute a predetermined function while the operator is gazing. For example, it is possible to set to play a moving image while the operator is gazing. In such a case, when the operator gazes at the display area of the monitor that displays the moving image, the gazing point acquisition unit 211 acquires the gazing point. The function selection unit 212d reproduces the moving image based on the gazing point information acquired by the gazing point acquisition unit 211.

  Here, the gazing point acquisition unit 211 continuously acquires information on the operator's gazing point, and determines whether or not the gazing point is out of the display area of the monitor. The function selection unit 212d stops the reproduction of the moving image when the gaze point acquisition unit 211 determines that the operator's gaze point is out of the display area of the monitor. Thereby, the operator can reproduce a moving image without an operation. Furthermore, since the reproduction of the moving image is stopped while the line of sight is separated, when viewed again, it is possible to continue observation from the stopped position.

  As described above, in the X-ray diagnostic apparatus 100 according to the first embodiment, the gazing point acquisition unit 211 acquires the operator's gazing point, and each unit included in the target selection unit 212 selects an operation target. Here, in the X-ray diagnosis apparatus 100 according to the first embodiment, when an operation target is selected by each unit included in the target selection unit 212, the operator can be notified of the selected monitor or video. .

  Returning to FIG. 3, when an operation target is selected by each unit included in the target selection unit 212, the notification unit 214 notifies the operator of the operation target by light or sound, for example. For example, when the monitor to be operated is selected by the monitor selection unit 212a, the notification unit 214 notifies the selected monitor with light or the like. Similarly, when an operation target is selected by each unit included in the target selection unit 212, the notification unit 214 can notify the operator of all the selected operation targets.

  In the above-described embodiment, the case where there is one operator in front of the line-of-sight recognition device 30 has been described. Hereinafter, a case where an operator is identified from a plurality of humans will be described. Specifically, the operator identifying unit 215 identifies an operator from among a plurality of people in front of the line-of-sight recognition device 30. FIG. 10 is a diagram illustrating an example of processing performed by the operator identification unit 215 according to the first embodiment.

  For example, as shown in FIG. 10, the operator identifying unit 215 identifies a person standing at a predetermined position in front of the camera as the line-of-sight recognition device 30 as an operator. In FIG. 10, the position where the user U1 is set as a predetermined position, and the user U2 is replaced with the user U1, so that the operator identifying unit 215 identifies the user U2 as the operator. As a result, the line-of-sight recognition device 30 acquires line-of-sight information with the user U2 as an operator.

  Further, after the user U2 is replaced with the user U1, the operator may be identified by raising a hand. Furthermore, it is possible to set the person who has performed the predetermined gesture as the operator. In such a case, the operator identification unit 215 has a function of recognizing a predetermined gesture.

  Alternatively, user registration may be performed in advance, and the user U2 may be selected from the registered user list. Further, the operator may be switched to the user U2 by the face recognition function.

  Next, a processing procedure of the X-ray diagnostic apparatus 100 according to the first embodiment will be described with reference to FIG. FIG. 11 is a flowchart illustrating a processing procedure performed by the X-ray diagnostic apparatus 100 according to the first embodiment.

  In the gazing point mode, which is a mode for selecting an operation target and a function according to the gazing point of the operator, the sight line recognition device 30 acquires the sight line information of the operator (step S101). Then, the gazing point acquisition unit 211 detects the gazing point of the operator based on the line-of-sight information (step S102).

  After that, each unit included in the target selection unit 212 selects a target based on the gaze point (step S103). And if operation is performed by the operator, the X-ray diagnostic apparatus 100 will perform a function with respect to the selected object (step S104).

  As described above, according to the first embodiment, the gazing point acquisition unit 211 acquires information on the operator's gazing point. The target selection unit 212 selects a function to be executed and a target of the function to be executed based on the operator's gaze point information acquired by the gaze point acquisition unit 211. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment can omit the selection process by the operator, simplify the operation, and improve the efficiency of the procedure.

  Further, according to the first embodiment, the gazing point acquisition unit 211 pays attention to the display unit 23, the image displayed on the display unit 23, the area in the image, or the information on which the holding device is watched by the operator. Obtained as viewpoint information. Then, the target selection unit 212 is based on the display unit 23, the image displayed on the display unit 23, the area in the image, or the information on the holding device acquired by the gazing point acquisition unit 211 as gazing point information. The function to be executed and the target of the function to be executed are selected. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment can set the entire X-ray diagnostic apparatus 100 as a candidate for an operation target, and can simplify a wide range of operations.

  Further, according to the first embodiment, the input unit 22 causes the first target to execute the first function by receiving an operation by the operator. The object selection unit 212 is executed by the input unit 22 according to an operation received from the operator based on information related to the function related to the operator's gaze information acquired by the gaze point acquisition unit 211. The first function for one object is changed to the second function. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment can associate the operation targets with the same function, and can simplify the operation efficiently.

  Further, according to the first embodiment, when the display unit 23 has a plurality of monitors, the mouse cursor setting unit 213 indicates that the information of the operator's gaze point acquired by the gaze point acquisition unit 211 is the display unit 23. If the monitor is one of a plurality of monitors, the mouse cursor is moved into the monitor from which the gazing point information is acquired. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment makes it possible to save the operator from searching for the mouse cursor.

  Further, according to the first embodiment, when the mouse cursor setting unit 213 moves the mouse cursor, the mouse cursor setting unit 213 moves the mouse cursor to the position that was last arranged in the display screen of the movement destination. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment makes it possible to place a mouse cursor near the GUI that is easy to use.

  Further, according to the first embodiment, when the information of the operator's gaze point acquired by the gaze point acquisition unit 211 is an area in the image, the target selection unit 212 determines that the gaze point of the operator is The time in the region in the image is measured, and a predetermined function is executed on the region on condition that the predetermined time has passed. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment can execute a predetermined function almost automatically.

  Further, according to the first embodiment, the operator identifying unit 215 identifies an operator from among a plurality of people. The gaze point acquisition unit 211 acquires information on the gaze point of the operator identified by the operator identification unit 215. Therefore, the X-ray diagnostic apparatus 100 according to the first embodiment makes it possible to accurately acquire the operator's line of sight.

(Second Embodiment)
Although the first embodiment has been described so far, the present invention may be implemented in various different forms other than the first embodiment described above.

  In the first embodiment described above, the case where the target selection unit 212 includes the monitor selection unit 212a, the region selection unit 212b, the holding device selection unit 212c, and the function selection unit 212d has been described. However, the embodiment is not limited to this, and the integration / separation of each unit can be arbitrarily executed. For example, the monitor selection unit 212a, the region selection unit 212b, the holding device selection unit 212c, and the function selection unit 212d may be combined into one target selection unit 212.

  Further, in the first embodiment, the case where a camera is used as the line-of-sight recognition device 30 has been described. However, the embodiment is not limited to this, and may be a case where the line-of-sight information of the operator is acquired by a glasses method, for example. That is, the line-of-sight recognition device 30 may be provided in any form, for example, may be provided separately from the display unit 23, or may be provided incorporated in the display unit 23. It may be.

  In the first embodiment, the case where the hardware switches arranged in the apparatus are operated after the operation target is selected has been described as an example. However, the embodiment is not limited to this. For example, after an operation target is selected, a soft switch arranged on the GUI may be operated. For example, the button displayed on the monitor may be clicked after the operation target is selected.

  According to the X-ray diagnostic apparatus of at least one embodiment described above, it is possible to simplify the operation by the operator and improve the efficiency of the procedure.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example 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 spirit of the invention. These embodiments and their modifications are included in the scope and gist of the invention, and are also included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 100 X-ray diagnostic apparatus 21 System control part 211 Gaze point acquisition part 212 Object selection part 212a Monitor selection part 212b Area selection part 212c Holding | maintenance apparatus selection part 212d Function selection part 213 Mouse cursor setting part 214 Notification part 215 Operator identification part

Claims (8)

An acquisition means for acquiring operator's attention point information;
Selection means for selecting a function to be executed and a target of the function to be executed based on the operator's attention point information acquired by the acquisition means;
An X-ray diagnostic apparatus comprising: The acquisition means acquires the information displayed on the display unit, the image displayed on the display unit, the area in the image, or the information on which the holding device is watched by the operator as the information on the gazing point,
The selection unit performs the execution based on information on the display unit, an image displayed on the display unit, an area in the image, or a holding device acquired by the acquisition unit as the gazing point information. The X-ray diagnostic apparatus according to claim 1, wherein a function to be performed and a target of the function to be executed are selected. The apparatus further comprises input means for causing the first object to execute the first function by receiving an operation by the operator.
The selection means is executed by the input means in accordance with an operation received from the operator based on information related to a function related to the operator's attention point information acquired by the acquisition means. The X-ray diagnosis apparatus according to claim 1, wherein the first function for one object is changed to the second function. The display unit has a plurality of display surfaces;
When the information on the operator's gazing point acquired by the acquisition unit is one of a plurality of display surfaces in the display unit, a mouse cursor is displayed on the display surface on which the gazing point information is acquired. The X-ray diagnostic apparatus according to claim 1, further comprising a mouse cursor setting unit that moves the mouse.   5. The X-ray according to claim 4, wherein the mouse cursor setting means moves the mouse cursor to a position where it was last arranged in a display screen of a movement destination when moving the mouse cursor. Diagnostic device.   The selection unit measures the time when the operator's gaze point is located in the region in the image when the operator's gaze point information acquired by the acquisition unit is a region in the image; The X-ray diagnostic apparatus according to claim 1, wherein a predetermined function is executed on the region on condition that a predetermined time has elapsed. Further comprising identification means for identifying the operator among a plurality of persons,
The X-ray diagnostic apparatus according to claim 1, wherein the acquisition unit acquires information on an operator's gazing point identified by the identification unit. An acquisition procedure for acquiring the operator's attention point information;
A selection procedure for selecting a function to be executed and a target of the function to be executed based on information on the operator's gaze point acquired by the acquisition procedure;
A control program for causing a computer to execute.

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