WO2014123042A1 - 医用画像診断装置 - Google Patents
医用画像診断装置 Download PDFInfo
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- WO2014123042A1 WO2014123042A1 PCT/JP2014/051927 JP2014051927W WO2014123042A1 WO 2014123042 A1 WO2014123042 A1 WO 2014123042A1 JP 2014051927 W JP2014051927 W JP 2014051927W WO 2014123042 A1 WO2014123042 A1 WO 2014123042A1
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- posture
- posture setting
- subject
- imaging
- image
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- 210000000038 chest Anatomy 0.000 description 1
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- 210000003128 head Anatomy 0.000 description 1
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Definitions
- the present invention relates to a medical image diagnostic apparatus, and in particular, to a posture setting in the medical image diagnostic apparatus.
- imaging conditions are set from a console arranged in an operation room.
- One of the imaging conditions is the posture setting of the subject.
- the posture setting of the subject for example, the setting of the subject's skinnyness (posture setting) such as supine, prone, left side lying, right side lying, and whether the direction of the subject relative to the scanner is the head (Head First)
- Head First Direction setting that specifies foot
- Foot Foot
- Patent Document 1 exemplifies a display screen at the time of posture setting. On these display screens, a body position specifying area and a direction specifying area are provided in separate areas. In the position designation area, selection buttons of “supply”, “prone”, “left side”, and “right side” are displayed. In the direction designation area, “Head First” and “Feet First” selection buttons are displayed. The operator operates the selection button in the posture designation area to set the posture, and operates the selection button in the direction designation area to set the direction.
- the present invention has been made in view of the above problems, and it is easy to understand the positional relationship between the subject and the imaging apparatus and the direction of imaging, and it is possible to easily perform posture setting with a small number of operations.
- An object of the present invention is to provide a medical image diagnostic apparatus.
- the present invention collects measurement data acquired by the imaging apparatus, an operation console for inputting and displaying imaging conditions, an imaging apparatus for imaging a subject according to the imaging conditions, An image processing device that generates a medical image based on the measurement data; a storage unit that stores a posture setting image indicating a posture of the subject at the time of examination together with a positional relationship with the imaging device; and the storage
- a display control unit for displaying one of the posture setting images stored in the unit on the display unit, and a reference for selecting the position and orientation of the reference part of the subject in the posture setting image
- a plurality of site selection objects are displayed, an object control unit for controlling the operation of each reference site selection object, an input unit for inputting an instruction to select the reference site selection object, and a selection by the input unit.
- a posture setting unit that sets the posture of the subject as an imaging condition according to the position and orientation of the selected reference region selection object.
- a medical image diagnostic apparatus that makes it easy to understand the positional relationship between a subject and an imaging device, the posture and direction of the subject, and can easily perform posture setting with a small number of operations. it can.
- the medical image diagnostic apparatus collects measurement data acquired by the imaging apparatus, an imaging console that inputs and displays imaging conditions, an imaging apparatus that images a subject according to the imaging conditions, and the measurement
- An image processing device that generates a medical image based on the data, a storage unit that stores a posture setting image indicating a posture of the subject at the time of examination together with a positional relationship with the imaging device, for a plurality of positions, and the storage unit
- a display control unit for displaying one of the posture setting images stored in the display unit on a display unit, and a reference part for selecting the position and orientation of the reference part of the subject in the posture setting image
- An object control unit that displays a plurality of selected objects and controls the operation of each reference region selection object, an input unit that inputs an instruction to select the reference region selection object, and a selection by the input unit
- a posture setting unit that sets the posture of the subject as an imaging condition according to the position and orientation of the reference part selection object.
- the display control unit reads out the posture setting image corresponding to the position and orientation of the reference region selection object selected by the input unit from the storage unit, and displays the posture setting image displayed on the display unit It is characterized by switching and displaying.
- the posture setting image is a perspective view.
- the reference part is the head of the subject.
- the storage unit stores a plurality of posture setting images viewed from different viewpoints with respect to the same posture
- the display control unit is configured to display the positions of the display device and the imaging device that display the posture setting images.
- a posture setting image corresponding to the relationship is read from the storage unit and displayed.
- the posture setting image is displayed on a display device provided on the console in an operation room.
- the posture setting image is displayed on a display device provided in the photographing apparatus.
- the posture setting image is characterized in that a state in which the subject is placed on a bed is drawn.
- the posture setting image is characterized in that the subject is drawn in a standing position.
- the storage unit stores posture setting images having different body axis directions of the subject with respect to the imaging device
- the object control unit further includes a body setting image in the posture setting image.
- a body axis selection object for selecting the direction of the axis is displayed, and the operation of the body axis selection object is controlled.
- an X-ray CT apparatus will be described as an example of the medical image diagnostic apparatus 1.
- the medical image diagnostic apparatus 1 is not limited to the X-ray CT apparatus, and may be any apparatus that performs imaging in a state where the subject is placed on a bed, such as an MRI apparatus.
- the medical diagnostic imaging apparatus 1 includes a photographing apparatus 10 and a console 20 when roughly divided.
- the photographing apparatus 10 is disposed in the photographing room
- the console 20 is disposed in the operating room.
- the photographing apparatus 10 includes a gantry 100 and a bed apparatus 101.
- the medical image diagnostic apparatus 1 is an X-ray CT apparatus
- the gantry 100 includes an X-ray generation apparatus, an X-ray detection apparatus, a data collection apparatus, a drive apparatus, and the like.
- the couch device 101 includes a top plate on which the subject is placed and each moving mechanism that moves the top plate in the body axis direction, the left-right direction, and the up-down direction. Each moving mechanism moves the top board according to a control signal input from the console 20. Thus, the subject is carried into and out of a predetermined position in the X-ray irradiation space of the gantry 100.
- the console 20 is a computer that sets various imaging conditions, generates a medical image based on measurement data measured by the imaging device 10, and displays the medical image.
- the console 20 includes a display device 107, an input device 109, a mouse 108, a system control device 21, and the like.
- the system control device 21 is a CPU (Central Processing Unit) 210, a main memory 211, a storage device 213, a communication interface (communication I / F) 214, a display memory 215, an interface (I / F) with external devices such as a mouse 108, etc. 216, and each part is connected via a bus 223.
- CPU Central Processing Unit
- the CPU 210 calls a program stored in the main memory 211 or the storage device 213 to the work memory area on the RAM of the main memory 211 and executes it, drives and controls each unit connected via the bus 223, and a system control device Implements various processes performed by 21.
- Main memory 211 is composed of ROM (Read Only Memory), RAM (Random Access Memory), and the like.
- the ROM permanently holds a computer boot program, a BIOS program, data, and the like.
- the RAM temporarily holds programs, data, and the like loaded from the ROM, the storage device 213, and the like, and includes a work memory area that the CPU 210 uses for performing various processes.
- the storage device 213 is a storage device that reads and writes data from and to an HDD (hard disk drive) and other recording media, and stores programs executed by the CPU 101, data necessary for program execution, an OS (operating system), and the like. .
- As for the program a control program corresponding to the OS and an application program are stored. Each of these program codes is read by the CPU 210 as necessary, transferred to the RAM of the main memory 211, and executed as various means.
- the communication I / F 214 includes a communication control device that mediates communication with the imaging device 10, a communication port, and the like.
- the communication I / F 214 performs communication control with the imaging device 10, the image database, and another computer via a network (not shown) such as a LAN.
- the I / F 216 is a port for connecting a peripheral device, and transmits / receives data to / from the peripheral device.
- a pointing device such as a mouse 108 or a stylus pen may be connected via the I / F 216.
- the display memory 215 is a buffer that temporarily stores display data input from the CPU 210.
- the accumulated display data is output to the display device 107 at a predetermined timing.
- the display device 107 includes a display device such as a liquid crystal panel and a CRT monitor, and a logic circuit for executing display processing in cooperation with the display device, and is connected to the CPU 210 via the display memory 215.
- the display device 107 displays the display data stored in the display memory 215 under the control of the CPU 210.
- the input device 109 is an input device such as a keyboard, for example, and outputs various instructions and information input by the operator to the CPU 210.
- the operator interactively operates the system control device 21 using external devices such as the display device 107, the input device 109, and the mouse 108.
- the input device 109 may be a touch panel formed integrally with the display device 107.
- the system control device 21 of the medical image diagnostic apparatus 1 includes a display control unit 31, a GUI control unit 32, and a posture setting unit 33 as functional configurations related to posture setting.
- the storage device 213 of the system control device 21 stores a plurality of posture setting images.
- the posture setting image is an image showing the posture and direction of the subject at the time of the examination together with the positional relationship with the imaging apparatus 10 (gantry 100).
- the display control unit 31 displays an imaging condition setting screen 300 shown in FIG. 5 on the display device 107 when setting the imaging conditions in the medical image diagnostic apparatus 1.
- the display control unit 31 reads out one of the posture setting images 3A to 3H (see FIG. 6) stored in the storage device 213 and displays it on the imaging condition setting screen 300.
- the GUI control unit 32 controls the reference part selection objects 5a to 5h (see FIG. 7) on the posture setting image displayed on the imaging condition setting screen 300.
- the reference part selection objects 5a to 5h are GUIs (Graphical User Interface) for selecting the position and orientation of the subject drawn in the posture setting image.
- the reference part selection objects 5a to 5h are displayed as marks or figures of a predetermined shape. Further, the reference part selection objects 5a to 5h are arranged in a direction in which a predetermined reference part of the subject is directly facing. That is, the reference part selection objects 5a to 5h are arranged at a plurality of positions that can be taken by the reference part at the time of imaging.
- the reference region of the subject is preferably the head (face), for example. However, another part may be used as the reference part. When the head (face) is used as the reference part, it is preferable because the top, bottom, left and right are easy to understand sensuously.
- the posture setting images 3A to 3H and the reference part selection objects 5a to 5h will be described later.
- the input device 109 receives selection of the reference part selection objects 5a to 5h by the operator.
- the input device 109 generates a reference part selection signal corresponding to the selected reference part selection object and sends it to the GUI control unit 32.
- the input device 109 may be a mouse 108 or the like.
- the GUI control unit 32 switches the reference part selection objects 5a to 5h to the “selected” or “non-selected” display state according to the reference part selection signal input from the input device 109. In addition, the GUI control unit 32 sends a reference region selection signal to the display control unit 31 and the body position setting unit 33.
- the display control unit 31 reads out the corresponding posture setting image from the storage device 213 according to the reference part selection signal, and switches the image to the image displayed on the display device 107 and displays it. In other words, when a certain reference part selection object is selected by the operator, the image is switched so that the reference part (head) faces the selected object.
- the body position setting unit 33 sets the body position and direction of the subject as the imaging condition 40 according to the reference region selection signal.
- the operator Prior to the processing of the flowchart of FIG. 4, the operator first guides the examiner (subject) to enter the imaging room. The operator places the subject on the bed. At this time, the posture of the subject is the posture and direction according to the examination purpose. Thereafter, the bed is moved, and the top board is moved into the imaging space. Next, the operator performs posture setting and alignment operations on the medical image diagnostic apparatus 1. The posture setting and alignment are performed while operating the imaging condition setting screen 300 displayed on the display device 107. Various shooting conditions are set on the shooting condition setting screen 300. In the present embodiment, the posture setting, which is a part of the setting, will be described.
- the system control device 21 displays the shooting condition setting screen 300 on the display device 107 (step S101).
- the imaging condition setting screen 300 is provided with a posture setting area 301, a subject information input area 302, and an examination content setting area 303 as shown in FIG. Further, a posture display area 304 for displaying the currently selected posture and direction may be provided in the vicinity of the posture setting area 301.
- the posture setting area 301 is an area for setting the posture and direction of the subject who is placed on the bed 101.
- Examples of posture (leaning) patterns include supine, prone, left recumbent, right recumbent.
- the direction pattern includes “head first” in which the head is on the gantry 100 side and “foot first” in which the foot is on the gantry 100 side.
- the storage device 213 stores posture setting images of all posture patterns that can be taken by the medical image diagnostic apparatus 1.
- FIG. 6 shows an example of the posture setting images 3A to 3H stored in the storage device 213.
- Fig. 6 (a) is a posture setting image 3A showing "head first / supine”
- Fig. 6 (b) is a posture setting image 3B showing "head first / left lying”
- Fig. 6 (c) is "head first”
- Position setting image 3C showing ⁇ / prone ''
- Fig. 6 (d) is posture setting image 3D showing ⁇ head first / right recumbent ''
- Fig. 6 (e) is posture setting image showing ⁇ foot first / supine '' 3E
- FIG. 6 (f) is a posture setting image 3F showing ⁇ Foot First / Right lying ''
- FIG. 6 (g) is a posture setting image 3G showing ⁇ Foot First / Falling ''
- FIG. 3H is a posture setting image 3H showing “Foot First / Left Side”.
- Each of the above posture setting images 3A to 3H shows the posture and direction of the subject at the time of the examination together with the positional relationship with the imaging device (gantry 100).
- the posture setting images 3A to 3H are preferably perspective views. By expressing the posture in a perspective view, the positional relationship between the imaging apparatus (gantry 100) and the subject and the relationship between the depth and the front can be easily understood by the operator.
- the viewpoint direction in the perspective view may be the right direction or the left direction.
- Each of the posture setting images 3A to 3H in FIG. 6 is a perspective view (viewpoint direction: right) as seen from the operator in the right direction.
- the system control device 21 of the medical image diagnostic apparatus 1 reads the posture setting image of the posture pattern selected by the operator from the storage device 213 and displays it in the posture setting area 301 (step S102). In a state where no body posture is set, a posture setting image of a body posture pattern set in advance as an initial display is displayed. For example, the “head first / supine” posture setting image 3A shown in FIG. 7 (a) is displayed. The system control device 21 may display the posture pattern displayed in the posture setting area 301 with characters in the posture display area 304.
- the system control device 21 displays the reference region selection objects 5a to 5h in the posture setting image 3A displayed in the posture setting area 301, and controls the operations for the operations on the objects 5a to 5h (step S103).
- the reference portion is preferably the head (face), for example. If the head (face) is used as a reference region, the directions such as left, right, top, and bottom are easy to understand intuitively.
- One of the reference region selection objects 5a to 5h is always selected.
- the display state indicates “selected”.
- the “selected” state may be expressed by lighting a mark indicating an object, changing a color, changing a graphic of the mark, or the like.
- the reference site selection objects 5a, 5b, 5c, and 5d are displayed on the side closer to the gantry 100, and the reference site selection objects 5e, 5f, 5g, and 5h are displayed on the side far from the gantry 100.
- the Each reference part selection object is arranged at a position where the front of the face, which is the reference part, faces each other in each body posture pattern. In the initial state, the posture pattern “head first / backward” is set in which the face which is the reference part faces upward on the gantry 100 side.
- the reference part selection object 5a displayed on / above the gantry is in the “selected” display state.
- the system control apparatus 101 may display an arrow 305 indicating the shooting direction together with the posture setting images 3A to 3H.
- the arrow 305 indicating the direction of imaging may indicate the direction in which the bed moves during imaging, or may indicate the direction in which X-ray transmission data is acquired for the subject. It is desirable to be able to select which direction is to be selected by an operator's preset setting.
- step S104 When any reference part selection object is selected by the mouse 108 or the like (step S104; Yes), the system control device 21 switches the display of “selected” / “non-selection” of the reference part selection object (step S105). Then, the system control device 21 reads out the posture setting image corresponding to the position and orientation indicated by the selected object from the storage device 213, and switches the displayed image to the currently displayed posture setting image (step S106). Further, the system control device 21 displays the selected posture in characters in the posture display area 304 (step S107). Then, the posture and direction of the subject are set as imaging conditions (step S108).
- Fig. 7 (b) shows the posture setting image 3H after the posture selection.
- the system control device 21 displays the reference part selection object 5a in the non-selected state.
- the display state indicates “not selected”.
- the display of the reference region selection object 5h in the selected state is changed to a display state indicating “selected”.
- the system control device 21 reads from the storage device 213 the posture setting image 3H corresponding to the reference region selection object 5h in the selected state.
- the body position corresponding to the selected reference region selection object 5h is “foot first / left recumbent”.
- the system control device 21 reads the posture setting image 3H indicating “Foot First / Left Side” from the storage device 213, and displays the images by switching.
- the system control device 21 when the shooting direction is changed by an operation from the input device 109, the system control device 21 also switches the direction of the arrow 305.
- step S109 When the subject information is input to the subject information input area 302 (step S109; Yes), the system control device 21 performs registration processing of the input subject information (step S110). Further, when an examination part or examination content is input in the examination content setting area 303 (step S111; Yes), the system control device 21 performs registration processing of the entered examination information as an imaging condition (step S112).
- the medical image diagnostic apparatus 1 When the setting of the body position and the like is completed and an operation for performing imaging is performed with the input device 109, the medical image diagnostic apparatus 1 performs imaging with the contents set in the imaging conditions. When the imaging is completed, the medical image diagnostic apparatus 1 cancels the posture setting, carries out the bed from the gantry, and guides the subject to leave the room.
- a plurality of reference region selection objects indicating the position and orientation of the reference region of the subject, together with the posture setting image indicating the positional relationship between the imaging device and the subject. Display in position.
- the posture corresponding to the selected object is set as the imaging condition.
- the image is switched to the posture setting image corresponding to the selected object.
- the above-mentioned image for posture setting has shown the example displayed on the display apparatus 107 provided in the console 20 in the operation room, it is not limited to this.
- the posture setting image and the reference part selection object are displayed on the other display device. May be.
- the imaging device (gantry 100) in the posture setting image is drawn on the left side (viewpoint direction: right) of the bed, but the viewpoint direction of the image is not limited to this.
- the posture setting image (viewpoint direction: left) that the imaging device can be seen to the right of the bed is stored for each posture, and the posture setting image that matches the positional relationship between the imaging device and the bed that the operator actually sees is stored. You may make it display.
- a switching operation unit for switching the viewpoint and displaying the posture setting image may be provided in the imaging condition setting screen 300 or in the vicinity of the display device.
- postures may include postures such as slightly tilting to the right (or left).
- displaying too many options may complicate the image and may make operation difficult. Therefore, it is desirable to present some optimal positions according to the examination site and purpose.
- FIG. 8 is an example of the shooting condition setting screen 300b of the second embodiment.
- the imaging condition setting screen 300b includes a posture setting area 301b, a subject information input area 302, and an examination content setting area 303. Further, a posture display area 304 for displaying the selected posture in characters may be provided in the vicinity of the posture setting area 301b.
- the difference from the imaging condition setting screen 300 of the first embodiment is that the bed is not drawn in the posture setting image displayed in the posture setting area 301b.
- the subject is drawn in a standing position.
- the term “body position” is used to mean the position of the X-ray tube relative to the subject.
- the body position in the second embodiment is the imaging region and the imaging direction.
- the imaging parts are each part of the body such as the head, neck, chest, abdomen, and lower limbs, and the imaging directions are the surrounding directions such as front, back, left and right of the subject.
- the reference part selection objects 6a to 6h are arranged at a plurality of positions that can be taken by the reference part (X-ray tube) of the imaging apparatus 10. Any one of the reference region selection objects 6a to 6h is always selected.
- the posture setting image stored in the storage device 213 is used because the posture setting image representing the arrangement of a part of the imaging device (reference site; X-ray tube) with respect to the subject is used.
- the posture setting image representing the arrangement of a part of the imaging device (reference site; X-ray tube) with respect to the subject is used.
- a plurality of perspective views with different viewpoint positions may be stored. In this case, it may be possible to select and display the orientation of the subject in the image according to the actual position of the subject viewed from the console (position where the operator operates the setting screen). desirable.
- step S201 to step S204 in the flowchart in FIG. 10 is the same as that from step S101 to step S104 in the first embodiment (FIG. 4).
- the posture setting image is the standing posture setting image 3 shown in FIG.
- the posture setting image 3 is drawn while the subject is standing, and a line indicating the height of the imaging region (i.e., the height of the tube) around the subject (61a in FIG. 9). 61b) is rendered.
- the line 61a represents the height of the chest
- the line 61b represents the height of the abdomen.
- the system control device 21 of the medical image diagnostic apparatus 1 reads the posture setting image 3 from the storage device 213 and displays it in the posture setting area 301b (step S202).
- the system control device 21 displays the reference part selection objects 6a to 6h.
- the reference part selection objects 6a to 6h are arranged at the position of the X-ray tube with respect to the subject as shown in FIG. In the initial state, for example, as shown in FIG. 9A, “chest / front” is selected.
- the line 61a including the selected object may be indicated by a solid line, and the other lines 61b may be indicated by a broken line.
- the system control device 21 may display the posture pattern displayed in the posture setting area 301b with characters in the posture display area 304.
- the system control device 21 switches the display indicating “selected” / “non-selection” of the reference part selection object (step S205). . Further, the system control device 21 displays the selected body position in the body position display area 304 (step S206). Further, the selected body position is set as an imaging condition (step S207).
- Fig. 9 (b) shows the display state of the posture setting image after the posture selection.
- the system control device 21 indicates “non-selection” for the display of the object 6a in the non-selection state. Display state. Then, the display of the object 6f in the selected state is changed to a display state indicating “selected” as shown in FIG. 9B. Also, the display state of the line 61a is changed to “non-selected”, and the line 61b is changed to “selected”. Only the display state of the reference region selection objects 6a and 6f and the lines 61a and 61b is changed while the orientation of the subject in the posture setting image is unchanged. In FIG. 9 (b), since the reference region selection object 6f is selected, the body position of the subject is set to “abdomen / left”.
- the processing after step S208 is the same as the processing after step S109 in FIG.
- the posture setting image 3 in which the subject is standing is used.
- the reference part of the reference part selection object is a part of the imaging apparatus 10 (for example, an X-ray tube).
- the system controller 21 displays the “selected” / “non-selected” display state of the object.
- the posture corresponding to the selected object is set as the imaging condition.
- the operator can intuitively set the posture (imaging site and imaging direction).
- the position of the X-ray tube relative to the subject can be specified from a plurality of reference region selection objects as the body position, both the imaging region and the imaging direction can be set with one click.
- the operation can be performed with a relatively large image even on a setting screen with a limited display area.
- the posture setting image and the reference part selection object may be displayed on the console in the operation room, or may be displayed on the imaging device in the imaging room. It may be displayed on the installed second display device.
- the viewpoint direction of the posture setting image may be changed so as to coincide with the viewpoint direction when actually viewing the photographing apparatus from the standing position of the operator.
- a switching operation unit for switching the viewpoint direction and displaying the posture setting image may be provided in the imaging condition setting screen 300b.
- a posture setting method suitable for a medical image diagnostic apparatus capable of taking a plurality of body axis directions, such as an open MRI apparatus, will be described as another form of the medical image diagnostic apparatus 1.
- FIG. 11 and FIG. 12 are diagrams showing examples of the bed arrangement in the open type MRI apparatus.
- the open-type MRI apparatus is an open imaging space in which the imaging unit is divided up and down. Therefore, it can take more positions. For example, as shown in FIG. 11, it is carried in so that the body axis of the subject is in the vertical direction with respect to the imaging space, or is carried in so that the body axis is in the horizontal direction as shown in FIG. For each body axis direction, there are two head positions and body postures such as supine, prone, right recumbent, left recumbent.
- the body axis selection object (7, 7a to 7h in FIG. 8, 8a to 8h) are displayed on the position selection image.
- the body axis selection object includes an axis 7 indicating the direction of the body axis (axis 8 in FIG. 12) and a plurality of marks 7a to 7h (in FIG. 12, arranged at each position for designating the position and orientation of the reference part. Marks 8a to 8h).
- the system control apparatus reads out the body axis and body position setting images corresponding to the selected mark from the storage device 213 and displays them. .
- posture setting images having different body axis directions are stored for each posture.
- the system control device 21 displays the shooting condition setting screen 300c on the display device 107 (step S301).
- FIG. 14 is an example of an imaging condition setting screen 300c according to the third embodiment.
- the difference from the imaging condition setting screen 300 (FIG. 5) of the first embodiment is that the imaging device for the posture setting image displayed in the posture setting area 301c is an open type, and the subject's body axis The body axis selection object for selecting is displayed. A state in which the subject is placed on the bed is drawn.
- the system control device 21 reads out the posture setting image of the posture pattern selected by the operator from the storage device 213 and displays it in the posture setting area 301c (step S301).
- a posture setting image of a posture pattern set in advance as an initial display is displayed. For example, as shown in FIG. 11, the body position setting image 4A in the body axis direction “vertical” and “head first / backward” is displayed.
- the system control device 21 may display the posture pattern displayed in the posture setting area 301c in characters in the posture display area 304.
- the system control device 21 displays the reference region selection objects 5a to 5h in the posture setting image 4A displayed in the posture setting area 301c, and controls the operation for the operations on the objects 5a to 5h.
- the axis 7 and the marks 7a to 7h of the body axis selection object are displayed in an axis direction different from the body axis direction of the subject drawn in the body position setting image 4A, and operations on the marks 7a to 7h are also monitored. (Step S303).
- the body axis direction of the subject drawn in the posture setting image 4A is the vertical direction
- the body axis selection object having the axis 7 in a direction (lateral direction) different from that 7, 7a ⁇ 7h are displayed.
- step S304 When any one of the reference part selection objects 5a to 5h and the body axis selection object marks 7a to 7h of the posture setting image 4A is selected by the operator's mouse operation or the like (step S304; Yes), system control is performed.
- the device 21 sets the display of the object in the non-selected state to the display state indicating “non-selected”. Then, the display of the selected object is changed to a display state indicating “selection” (step S305). Further, the system control device 21 reads out the posture setting image corresponding to the selected object from the storage device 213 and switches the display (step S306).
- step S304 If the object selected in step S304 is a body axis selection object (step S307; Yes), the body axis of the subject in the posture setting image is changed. Therefore, the system control device 21 changes the reference part selection object and the body axis selection object (step S308).
- a body position setting image 4I is displayed that indicates the body axis direction is the horizontal direction, the subject's reference region is the right side of the imaging apparatus, and the supine body position. Further, the system control device 21 switches the arrangement of the reference region selection object to the positions indicated by reference numerals 5i to 5p.
- a body axis selection object (axis 8 and marks 8a to 8h) having the axis 8 in the vertical direction is displayed on the body position setting image 4I.
- the system control device 21 displays the selected posture in the posture display area 304 (step S309). Then, the posture and direction of the subject are set as imaging conditions (step S310).
- the body axis selection can select a body position with different body axis directions. Display the object.
- an imaging apparatus that can take a plurality of body axis directions in an imaging space, such as an open MRI apparatus, the operator can intuitively understand the posture and easily set it.
- each body axis selection object includes marks (7a to 7h, 8a to 8h) for selecting a reference part of the body axis, the body axis direction and the body position can be selected at the same time with one click.
- one posture setting image is always displayed, even a setting screen with a limited display area can be operated with a relatively large image.
- the body axis direction has been described as two vertical and horizontal directions, it is not limited to this and may be three or more directions. However, displaying too many options may complicate the image and may make operation difficult. Therefore, it is preferable to present one or two optimal body axis directions according to the examination site and purpose.
- the posture setting image and the reference region selection object may be displayed on the console in the operation room, or in the imaging room. You may display on another display apparatus installed in the apparatus etc.
- the viewpoint direction of the posture setting image may be changed so as to coincide with the viewpoint direction when actually viewing the photographing apparatus from the standing position of the operator.
- a switching operation unit for switching the viewpoint direction and displaying the posture setting image may be provided in the imaging condition setting screen 300c or in the vicinity of the display device.
- 1 Medical diagnostic imaging device 10 imaging device, 100 gantry, 101 bed, 20 console, 21 system control device, 107 display device, 108 mouse, 109 input device, 210 CPU, 211 main memory, 213 storage device, 214 communication I / F, 215 display memory, 216 I / F, 107 display device, 108 mouse, 109 input device, 31 display control unit, 32 GUI control unit, 33 body position setting unit, 40 shooting conditions, 300, 300b, 300c shooting condition settings Screen, 301, 301b, 301c Position setting area, 304 Position display area, 5a to 5p Reference part selection object (first embodiment, third embodiment), 6a to 6h Reference part selection object (second embodiment), 61a , 61b Height of imaging part, 7, 7a-7h Body axis selection object, 8, 8a-8h Body axis selection object
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Abstract
Description
まず、図1及び図2を参照して、本発明の医用画像診断装置1のハードウエア構成について説明する。第1の実施の形態では、医用画像診断装置1の一例としてX線CT装置について説明する。なお、医用画像診断装置1はX線CT装置に限定するものでなく、例えばMRI装置等、寝台に被検者を寝載した状態で撮影を行う装置であればよい。
また視点を切り替えて体位設定用画像を表示するための切替操作部を撮影条件設定画面300内や表示装置の近傍に設けるようにしてもよい。
次に、図8~図10を参照しながら、本発明の第2の実施の形態について説明する。
図9の例では、ライン61aは胸部の高さ、ライン61bは腹部の高さを示すものとする。医用画像診断装置1のシステム制御装置21は、体位設定用画像3を記憶装置213から読み出し、体位設定エリア301bに表示する(ステップS202)。
基準部位選択用オブジェクト6a~6hは、図9に示すように被検者に対するX線管球の位置に配置される。また初期状態では、例えば図9(a)に示すように、「胸部/前」が選択された状態となっている。選択されているオブジェクトが含まれるライン61aを実線で示し、その他のライン61bを破線で示してもよい。システム制御装置21は体位設定エリア301bに表示されている体位パターンを体位表示エリア304に文字で表示してもよい。
次に、図11~図14を参照しながら、本発明の第3の実施の形態について説明する。
Claims (10)
- 撮影条件を入力及び表示する操作卓と、前記撮影条件に従って被検者を撮影する撮影装置と、前記撮影装置が取得した計測データを収集し、前記計測データに基づいて医用画像を生成する画像処理装置と、
検査時の被検者の体位を前記撮影装置との位置関係とともに示す体位設定用画像を複数の体位について記憶する記憶部と、
前記記憶部に記憶されている前記体位設定用画像のうち1つを表示部に表示する表示制御部と、
前記体位設定用画像内に、被検者の基準部位の位置及び向きを選択するための基準部位選択オブジェクトを複数表示し、各基準部位選択オブジェクトの動作を制御するオブジェクト制御部と、
前記基準部位選択オブジェクトの選択指示を入力する入力部と、
前記入力部により選択された基準部位選択オブジェクトの位置及び向きに従って前記被検者の体位を撮影条件として設定する体位設定部と、
を備えることを特徴とする医用画像診断装置。 - 前記表示制御部は、前記入力部により選択された前記基準部位選択オブジェクトの位置及び向きに該当する体位設定用画像を前記記憶部から読み出し、前記表示部に表示されている体位設定用画像と切り替えて表示することを特徴とする請求項1に記載の医用画像診断装置。
- 前記体位設定用画像は斜視図とすることを特徴とする請求項1に記載の医用画像診断装置。
- 前記基準部位を被検者の頭部とすることを特徴とする請求項1に記載の医用画像診断装置。
- 前記記憶部には同一の体位について異なる視点から見た複数の体位設定用画像がそれぞれ記憶され、
前記表示制御部は、前記体位設定用画像を表示する表示装置と前記撮影装置との位置関係に応じた体位設定用画像を前記記憶部から読み出して表示することを特徴とする請求項1に記載の医用画像診断装置。 - 前記体位設定用画像は操作室内の前記操作卓に設けられた表示装置に表示されることを特徴とする請求項5に記載の医用画像診断装置。
- 前記体位設定用画像は前記撮影装置に設けられた表示装置に表示されることを特徴とする請求項5に記載の医用画像診断装置。
- 前記体位設定用画像は、前記被検者が寝台に寝載された状態が描画されていることを特徴とする請求項1に記載の医用画像診断装置。
- 前記体位設定用画像は、前記被検者が立位で描画されていることを特徴とする請求項1に記載の医用画像診断装置。
- 前記記憶部には、前記撮影装置に対して前記被検者の体軸の方向が異なる体位設定用画像がそれぞれ記憶され、
前記オブジェクト制御部は、前記体位設定用画像内に、更に体軸の向きを選択する体軸選択オブジェクトを表示し、体軸選択オブジェクトの動作を制御することを特徴とする請求項1に記載の医用画像診断装置。
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