WO2019022246A1 - 放射線画像撮影システム、制御装置、制御方法、及び制御プログラム - Google Patents
放射線画像撮影システム、制御装置、制御方法、及び制御プログラム Download PDFInfo
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- WO2019022246A1 WO2019022246A1 PCT/JP2018/028327 JP2018028327W WO2019022246A1 WO 2019022246 A1 WO2019022246 A1 WO 2019022246A1 JP 2018028327 W JP2018028327 W JP 2018028327W WO 2019022246 A1 WO2019022246 A1 WO 2019022246A1
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- 238000003384 imaging method Methods 0.000 title claims abstract description 259
- 238000000034 method Methods 0.000 title claims abstract description 62
- 230000005855 radiation Effects 0.000 claims abstract description 225
- 238000009607 mammography Methods 0.000 claims abstract description 99
- 210000000481 breast Anatomy 0.000 claims abstract description 57
- 230000006835 compression Effects 0.000 claims abstract description 48
- 238000007906 compression Methods 0.000 claims abstract description 48
- 239000002872 contrast media Substances 0.000 claims abstract description 24
- 230000004044 response Effects 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 abstract description 11
- 238000009548 contrast radiography Methods 0.000 abstract description 4
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- 239000010949 copper Substances 0.000 description 12
- 238000003860 storage Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 7
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
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- 229910052799 carbon Inorganic materials 0.000 description 1
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- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/502—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of breast, i.e. mammography
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/04—Positioning of patients; Tiltable beds or the like
- A61B6/0407—Supports, e.g. tables or beds, for the body or parts of the body
- A61B6/0414—Supports, e.g. tables or beds, for the body or parts of the body with compression means
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/42—Arrangements for detecting radiation specially adapted for radiation diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/48—Diagnostic techniques
- A61B6/481—Diagnostic techniques involving the use of contrast agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/54—Control of apparatus or devices for radiation diagnosis
Definitions
- the present invention relates to a radiation imaging system, a control device, a control method, and a control program.
- a mammography apparatus for imaging a radiation image by irradiating radiation from a radiation source toward a breast of a subject and detecting radiation transmitted through the breast with a radiation detector.
- a mammography apparatus irradiates radiation to a breast from a radiation source to take a radiation image by pressing an instruction unit such as a button or a switch for instructing radiation irradiation by a user such as a technician.
- an instruction unit such as a button or a switch for instructing radiation irradiation by a user such as a technician.
- radiographing of the radiation image is interrupted when the pressing of the instructing unit is released by the user releasing the hand from the instructing unit or the like. Be done.
- a mammography apparatus a first imaging that generates a first radiation image by a radiation detector by irradiating a breast with radiation of a first energy to a breast in a state where a contrast agent is administered, and a second different from the first energy
- a mammography apparatus which performs contrast imaging in which a second imaging in which a second radiation image is generated by irradiating a radiation of energy having a second energy with a radiation detector.
- the shooting may be interrupted before the whole shooting is completed.
- contrast imaging for example, if the user stops pressing the instruction unit between the first imaging and the second imaging, the contrast imaging is interrupted before the second imaging is completed.
- the imaging is interrupted halfway, the imaging must be performed again, and it may be necessary to re-do all the continuous imaging from the beginning, which may cause a burden on the subject.
- the present disclosure has been made in consideration of the above circumstances, and provides a radiation imaging system, a control device, a control method, and a control program that can reduce the burden on a subject in contrast imaging.
- an instruction unit that outputs an instruction signal according to a user operation, and a breast in a state in which a contrast agent is administered are compressed by a compression plate, and the radiation imaging system according to the instruction signal
- a first imaging for emitting radiation of a first energy from the radiation source to the breast and generating a first radiation image by the radiation detector, and a radiation of a second energy different from the first energy from the radiation source to the breast
- a mammography apparatus for performing contrast imaging for continuously performing second imaging for emitting radiation and generating a second radiation image by the radiation detector, and an instruction before the completion of the second imaging after the start of the first imaging
- a control unit that performs control to display information indicating a predetermined warning on the display unit when the signal stops.
- control unit of the radiation imaging system causes the display unit to display the information representing the warning
- the stop of the instruction signal is maintained after a predetermined time has elapsed , Interrupt the contrast imaging by the mammography device.
- the mammography apparatus of the radiographic imaging system of the 3rd aspect of this indication cancels
- the information representing the warning in the radiation imaging system of the fourth aspect of the present disclosure includes information representing the remaining time before interruption of contrast imaging.
- the radiation imaging system further includes a reception unit that receives an instruction to interrupt contrast imaging, and the control unit interrupts contrast imaging by the mammography device when the reception unit receives an interrupt instruction.
- control unit of the radiation imaging system when the instruction signal is output again from the instruction unit before the predetermined time elapses after the instruction signal is stopped, the contrast by the mammography device Continue shooting.
- the information representing the warning in the radiation imaging system of the seventh aspect of the present disclosure includes information representing interruption of contrast imaging.
- the control unit of the radiation imaging system causes the display unit to display information indicating that contrast imaging is being performed, from the start of contrast imaging by the mammography apparatus to completion or interruption.
- control unit of the radiation imaging system causes the display unit to display information indicating the completion of the contrast imaging.
- the control device compresses the breast in a state in which the contrast agent is administered by the compression plate, and the first energy of the first energy according to the instruction signal output from the instruction unit in response to the user's operation. Radiation is emitted from the radiation source to the breast and the radiation detector generates a first radiation image, and radiation is detected from the radiation source to the breast by radiation of the second energy different from the first energy.
- Control device that controls the mammography apparatus that performs contrast imaging that continuously performs a second imaging that generates a second radiation image by the controller, and after the start of the first imaging, before the second imaging is completed
- a determination unit that determines whether the instruction signal has stopped, and a control unit that performs control to cause the display unit to display information indicating a predetermined warning when the determination unit determines that the instruction signal has stopped. Equipped with
- the control method compresses the breast in a state in which a contrast agent is administered by a compression plate, and responds to an instruction signal output from the instruction unit in response to a user operation. Radiation is emitted from the radiation source to the breast and the radiation detector generates a first radiation image, and radiation is detected from the radiation source to the breast by radiation of the second energy different from the first energy.
- Control method of the mammography apparatus for performing contrast imaging in which the second imaging is continuously performed to generate the second radiation image by the processing unit, the instruction being performed after the start of the first imaging and before the second imaging is completed A control method, comprising: determining whether or not a signal has stopped, and displaying information indicating a predetermined warning on a display unit when it is determined that the instruction signal has stopped.
- the control program compresses the breast in a state in which the contrast agent is administered by the compression plate, and the first energy of the first energy according to the instruction signal output from the instruction unit in response to the user's operation. Radiation is emitted from the radiation source to the breast and the radiation detector generates a first radiation image, and radiation is detected from the radiation source to the breast by radiation of the second energy different from the first energy.
- Control program for causing a computer to execute control of a mammography apparatus for performing contrast imaging for continuously performing second imaging for generating a second radiation image by the controller, the second program being performed after the start of the first imaging It is determined whether or not the instruction signal has stopped before photographing is completed, and when it is determined that the instruction signal has stopped, processing for displaying information indicating a predetermined warning on the display unit is performed.
- a control program for causing the computer execute.
- the control device according to the present disclosure is a control device having a processor, wherein the processor compresses the breast in a state in which the contrast agent is administered by the compression plate, and generates an instruction signal output from the instruction unit according to the user's operation.
- a control method of a mammography apparatus for performing contrast radiography in which a breast is irradiated and a second radiography is continuously performed to generate a second radiological image by a radiation detector, which is a second radiography after the start of the first radiography It is determined whether or not the instruction signal has stopped before the completion of the operation, and when it is determined that the instruction signal has stopped, information indicating a predetermined warning is displayed on the display unit.
- the burden on the subject in contrast imaging can be reduced.
- FIG. 1 the block diagram showing an example of the whole structure of the radiographic imaging system 1 of this embodiment is shown.
- the radiation imaging system 1 of the present embodiment is operated by a user such as a doctor or a radiographer based on an instruction (imaging order) input from an external system (for example, RIS: Radiology Information System) via the console 6. It has a function to take a radiation image by RIS: Radiology Information System
- the radiation imaging system 1 of the present embodiment includes a console 6, a mammography device 10, and an irradiation instruction device 50.
- FIG. 2 the block diagram showing an example of a structure of the console 6, the mammography apparatus 10 of this embodiment, and the irradiation instruction apparatus 50 is shown.
- the mammography apparatus 10 of this embodiment is an apparatus which irradiates radiation R (for example, X-ray) to a breast of a subject and takes a radiation image of the breast.
- radiation R for example, X-ray
- the mammography apparatus 10 not only when the subject is standing up (standing position) but also when the subject is sitting on a chair (including a wheelchair) etc. (sitting position) It may be an apparatus for imaging a breast, and may be an apparatus capable of imaging at least a radiation image of a breast of a subject.
- the mammography apparatus 10 performs imaging in a state where a contrast agent is administered to the breast of the subject, ie, performs contrast imaging by energy subtraction imaging as a function to perform contrast imaging.
- CEDM Contrast Enhanced Digital Mammography
- the mammography apparatus 10 includes a radiation detector 11, a compression plate drive unit 21 that drives the compression plate 20, a radiation irradiation unit 28 having a radiation source 29, a control unit 60, and a storage unit 62. , I / F (Interface) unit 64, and an operation panel 66.
- the radiation detector 11, the compression plate driving unit 21, the radiation irradiating unit 28, the control unit 60, the storage unit 62, the I / F unit 64, and the operation panel 66 mutually communicate via a bus 69 such as a system bus or a control bus. The exchange of various information is possible.
- the control unit 60 of the present embodiment controls the overall operation of the mammography apparatus 10 according to the control (instruction) of the console 6.
- the control unit 60 includes a central processing unit (CPU) 60A, a read only memory (ROM) 60B, and a random access memory (RAM) 60C.
- the ROM 60B stores, in advance, various programs including a contrast imaging processing program described later, which are executed by the CPU 60A.
- the RAM 60C temporarily stores various data.
- the storage unit 62 stores image data of a radiation image captured by the radiation detector 11 and other various information. Specific examples of the storage unit 62 include an HDD (Hard Disk Drive) and an SSD (Solid State Drive).
- the I / F unit 64 communicates various information with the console 6 by wireless communication or wired communication.
- the operation panel 66 is provided, for example, on the photographing table 16 of the mammography apparatus 10 as a plurality of switches. Operation panel 66 may be provided as a touch panel.
- FIG. 3 the block diagram showing an example of the whole structure of the mammography apparatus 10 of this embodiment is shown.
- the side closer to the subject (the chest wall side) when the subject is facing the mammography apparatus 10 in taking a radiation image is the apparatus front side of the mammography apparatus 10 and the side away from the subject is the mammography apparatus It will be described as the rear side of the ten devices.
- the left-right direction of a subject when the subject is facing the mammography apparatus 10 is demonstrated as an apparatus left-right direction of the mammography apparatus 10.
- FIG. Further, the head direction of the subject when the subject is facing the mammography apparatus 10 will be described as the upper side and the vertical direction with the foot direction as the lower side.
- the mammography apparatus 10 includes a substantially C-shaped imaging unit 12 provided on the front side of the apparatus, and a base unit 14 that supports the imaging unit 12 from the apparatus rear side.
- the imaging unit 12 includes an imaging table 16 having a planar imaging surface 24 in contact with the subject's breast, a compression plate 20 for compressing the breast by sandwiching the imaging surface 24 of the imaging table 16, and imaging And a holding unit 18 for supporting the platform 16 and the compression plate 20.
- a member that transmits the radiation R is used for the compression plate 20.
- the imaging unit 12 further includes a support 22 that supports the radiation source 29 and a radiation irradiator 28, and the support 22 is separated from the holder 18.
- a radiation source 29 provided with a tube (tungsten as an example in the present embodiment) for irradiating the breast with radiation R in the radiation irradiating section 28 of the mammography apparatus 10 of the present embodiment.
- a Rh (rhodium) filter 42 and a Cu (copper) filter 44 are provided between the radiation source 29 and the imaging table 16 inside the radiation irradiation unit 28.
- FIG. 3 shows the Rh filter 42 and the Cu filter 44 in an integrated manner, each filter is provided as a separate filter.
- the filters provided in the mammography apparatus 10 are not limited to the Rh filter 42 and the Cu filter 44.
- a Mo (molybdenum) filter may be provided instead of or in addition to the Rh filter 42.
- the Al (aluminum) filter has the radiation source 29 continuously moved, and the imaging time at each imaging position (irradiation time of the radiation R) ) Is suitable for tomosynthesis photography that takes short pictures. Therefore, when the mammography apparatus 10 has a function of performing tomosynthesis imaging, an Al filter may be provided, and tomosynthesis imaging may be performed using the Al filter.
- a moving unit (not shown) is provided in the inside of the radiation irradiating unit 28, and when photographing a radiation image, depending on the energy of the radiation R to be irradiated, the Rh filter 42 or the Cu filter 44 is used. Move to a position in the radiation field.
- an axis (not shown) is provided in the imaging unit 12 of the present embodiment, and the imaging unit 12 can rotate with respect to the base unit 14.
- the shaft is fixed to the support 22 and the shaft and the support 22 rotate integrally.
- Gears are respectively provided on the shaft and the holding unit 18 provided in the photographing unit 12, and the holding unit 18 and the shaft are connected and integrally rotated by switching the meshing state and the non-meshing state of the gears.
- the shaft can be switched to a state where it is separated from the holding portion 18 and idles.
- shaft can use not only the said gear but various mechanical elements.
- the holding unit 18 supports the imaging table 16 and the radiation source 29 by separating the imaging surface 24 and the radiation source 29 at predetermined intervals.
- the holding unit 18 also holds the compression plate 20 via the support arm 26.
- the compression plate drive unit 21 slides the support arm 26 of the holding unit 18 to move the compression plate 20. It moves and the space
- the imaging surface 24 in contact with the breast of the subject is formed of, for example, carbon in terms of radiation permeability and intensity.
- a radiation detector 11 for detecting radiation R that has passed through the breast and the imaging surface 24 is disposed inside the imaging table 16.
- a radiation image is generated based on the radiation R detected by the radiation detector 11.
- the type of radiation detector 11 is not particularly limited, and may be, for example, an indirect conversion radiation detector that converts radiation R into light and converts the converted light into charge, or directly charges radiation R. It may be a direct conversion type radiation detector which converts into.
- image data representing a radiation image output from the radiation detector 11 of the mammography apparatus 10 is transmitted to the console 6.
- the mammography apparatus 10 of the present embodiment has a function of performing contrast imaging.
- a contrast agent used for contrast imaging a contrast agent using iodine having a 33 k-absorption edge (hereinafter simply referred to as "contrast agent”) is generally used.
- the mammography apparatus 10 irradiates the radiation R of the first energy lower than the k absorption edge of the contrast agent with the breast to which the contrast agent is administered as a subject, and takes a first radiation image by the radiation detector 11, and A radiation R of a second energy higher than the k absorption edge of the contrast agent is irradiated, and a second radiation image is taken by the radiation detector 11.
- Specific first energy and second energy are determined from the specifications of the mammography apparatus 10, the desired image quality of the radiation image, and the exposure of the subject in addition to the k absorption edge of the contrast agent. In general, 22 keV to 49 keV is preferable.
- irradiating the radiation R of the first energy means applying a tube voltage according to the first energy to irradiate the radiation R from the radiation source 29, and similarly Irradiating the radiation R of the second energy means applying the radiation R from the radiation source 29 by applying a tube voltage corresponding to the second energy.
- the first energy is the same as the energy of the radiation R used for normal (general) imaging.
- the radiation R of the first energy is irradiated to perform imaging (hereinafter, referred to as "LE imaging")
- the Rh filter 42 is disposed in the irradiation field. Since the k absorption edge of Rh is 23.2 keV, the radiation quality of the radiation R irradiated to the object is a radiation quality in which an energy component of 23.2 keV or more is suppressed.
- the LE shooting according to the present embodiment is an example of the first shooting according to the present disclosure.
- the second energy is set to any value in the range of 45 keV to 49 keV.
- the Cu filter 44 is disposed in the irradiation field when the radiation R of the second energy is irradiated to perform imaging (hereinafter, referred to as "HE imaging").
- the k absorption edge of Cu is 9.0 keV.
- the HE imaging of the present embodiment is an example of the second imaging of the present disclosure.
- the first radiation image captured by the first imaging and the second radiation image captured by the second imaging are output to the console 6.
- the console 6 of the present embodiment uses the radiographing order and various information acquired from an external system or the like via a wireless communication LAN (Local Area Network) or the like, the instruction signal output from the irradiation instruction apparatus 50, etc. It has a function of performing 10 controls.
- a wireless communication LAN Local Area Network
- the instruction signal output from the irradiation instruction apparatus 50 etc. It has a function of performing 10 controls.
- the console 6 of this embodiment is a server computer as an example. As shown in FIG. 2, the console 6 includes a control unit 70, a storage unit 72, an I / F unit 74, a display unit drive unit 76, a display unit 78, an operation input detection unit 80, and an operation unit 82.
- the control unit 70, the storage unit 72, the I / F unit 74, the display unit drive unit 76, and the operation input detection unit 80 are connected so as to be able to exchange various information with one another via a bus 83 such as a system bus or control bus.
- the console 6 of the present embodiment is an example of the control device of the present disclosure.
- the control unit 70 of the present embodiment controls the overall operation of the console 6.
- the control unit 70 includes a CPU 70A, a ROM 70B, and a RAM 70C.
- the ROM 70B stores, in advance, various programs including a control processing program to be described later which are executed by the CPU 70A.
- the RAM 70C temporarily stores various data.
- the storage unit 72 stores image data of radiation images captured by the mammography apparatus 10, various other information, and the like. Examples of the storage unit 72 include an HDD and an SSD.
- the display unit 78 displays various information.
- the display drive unit 76 controls the display of various information on the display unit 78.
- the operation unit 82 is used by the user to input an instruction related to imaging of a radiation image including an irradiation instruction of the radiation R and various information.
- the operation unit 82 is not particularly limited, and examples thereof include various switches, a touch panel, a touch pen, and a mouse.
- the operation unit 82 and the display unit 78 may be integrated to form a touch panel display.
- the operation input detection unit 80 detects an operation state of the operation unit 82.
- the I / F unit 74 communicates various information with an external system such as the mammography apparatus 10 or RIS by wireless communication or wire communication.
- console 6 receives the irradiation instruction signal from the I / F unit 54 of the irradiation instruction apparatus 50 by wireless communication or wire communication via the I / F unit 74.
- the irradiation instruction device 50 includes a button 52 and an I / F unit 54.
- the shape and the like of the irradiation instruction device 50 are not particularly limited.
- the button 52 is provided at one end of the gripping portion 56 gripped by the user.
- the irradiation instruction signal is output to the console 6 through the I / F unit 54.
- the irradiation instruction device 50 of the present embodiment is an example of the instruction unit of the present disclosure
- the irradiation instruction signal of the present embodiment is an example of the instruction signal of the present disclosure.
- the console 6 of the present embodiment receives the image data of each of the first radiation image and the second radiation image from the mammography apparatus 10 by wireless communication or wired communication via the I / F unit 74.
- the console 6 calculates the concentration distribution of the contrast agent from the image data of each of the first radiation image and the second radiation image, and generates a difference image emphasizing the contrast agent.
- the control unit 70 of the console 6 of the present embodiment multiplies image data (each pixel value) of the first radiation image by image data obtained by multiplying a predetermined first coefficient, The human body structure is suppressed by subtracting the image data (each pixel value) of the second radiation image from the image data obtained by multiplying a predetermined second coefficient for each corresponding pixel, and administration is performed. Image data of the difference image in which the contrast agent is emphasized is generated.
- the method of the control unit 70 generating the difference image is not limited to this, and it is possible to use a known difference image generation method.
- FIG. 5 is a flowchart showing an example of the flow of the contrast imaging process performed by the control unit 60 of the mammography apparatus 10 of the present embodiment.
- the CPU 60A of the control unit 60 executes the contrast imaging program stored in the ROM 60B to execute the contrast imaging process shown in FIG.
- step S100 the control unit 60 determines whether to start compression of the breast.
- the user when contrast imaging is performed, the user first positions the breast in a state in which the contrast agent of the subject is administered on the imaging surface 24 of the imaging table 16 of the mammography device 10
- the operation panel 66 instructs the start of compression on the breast in order to fix the breast by compression between the imaging platform 16 and the compression plate 20 by the compression plate 20.
- step S100 The determination in step S100 is negative until the start of the compression is instructed by the operation panel 66, and the process proceeds to step S108. On the other hand, when the start of compression is instructed by the operation panel 66, the determination in step S100 is positive, and the process proceeds to step S102.
- step S102 the control unit 60 causes the compression plate drive unit 21 to start moving the compression plate 20 in a direction approaching the imaging surface 24.
- step S104 the control unit 60 determines whether to stop the compression.
- the user when the user wants to stop the movement of the compression plate 20, the user instructs the operation panel 66 to stop the movement of the compression plate 20.
- the determination in step S104 is negative until movement of the compression plate 20 is instructed by the operation panel 66 and the movement of the compression plate 20 is continued.
- the determination in step S104 becomes affirmative and the process proceeds to step S106.
- control unit 60 stops the movement of the compression plate 20 by the compression plate drive unit 21.
- the control unit 60 determines whether or not the irradiation start has been instructed.
- the irradiation instructing device 50 outputs the irradiation instructing signal instructing the irradiation of the radiation R when the button 52 of the irradiation instructing device 50 is pressed by the user.
- the irradiation instruction signal is input to the mammography apparatus 10 via the console 6.
- the determination in step S108 is negative until the irradiation instruction signal is input, and the determination in step S108 is positive when the irradiation instruction signal is input, and the process proceeds to step S110.
- step S110 the control unit 60 causes the radiation source 29 to emit the radiation R of the first energy to perform LE imaging.
- the control unit 60 moves the Rh filter 42 and the Cu filter 44 to position the Rh filter 42 in the irradiation field. .
- a radiation image generated by the radiation detector 11 by LE imaging is output from the mammography apparatus 10 to the console 6.
- photography is called “1st radiographic image.”
- step S112 the control unit 60 determines whether or not an interruption instruction signal for instructing interruption of contrast imaging, which will be described in detail later, is input from the console 6.
- the determination of step S112 is negative, and the process proceeds to step S114.
- step S114 the control unit 60 causes the radiation source 29 to emit radiation R of the second energy and performs HE imaging, and then proceeds to step S116.
- the control unit 60 moves the Rh filter 42 and the Cu filter 44, changes the filter located in the irradiation field from the Rh filter 42 to the Cu filter 44, and then emits the radiation R.
- a radiation image generated by the radiation detector 11 by HE imaging is output from the mammography apparatus 10 to the console 6.
- photography is called "2nd radiographic image.”
- step S112 determines whether the discontinuation instruction signal is input.
- step S116 the control unit 60 causes the compression plate drive unit 21 to move the compression plate 20 in the direction away from the imaging surface 24 to release the compression of the breast by the compression plate 20, and then the main contrast imaging is completed.
- the console 6 transmits the received imaging order to the mammography apparatus 10, and executes the control processing illustrated in FIG. 6 as an example.
- FIG. 6 A flowchart showing an example of the flow of control processing executed by the control unit 70 of the console 6 of the present embodiment is shown in FIG.
- the CPU 70A of the control unit 70 executes the control processing program stored in the ROM 70B to execute the control processing shown in FIG. 6, and an example of the control unit and the determination unit of the present disclosure. Act as.
- step S200 the control unit 70 determines whether an irradiation instruction signal is input from the irradiation instruction device 50. The determination in step S200 is negative until the irradiation instruction signal is input. On the other hand, when the irradiation instruction signal is input, the determination in step S200 is positive, and the process proceeds to step S202.
- control unit 70 outputs an irradiation instruction signal to the mammography apparatus 10.
- step S204 the control unit 70 determines whether the irradiation instruction signal input from the irradiation instruction device 50 has stopped. If the irradiation instruction signal has stopped, the determination in step S204 is affirmative, and the process proceeds to step S206.
- the irradiation instruction signal output from the irradiation instruction device 50 is stopped.
- the console 6 interrupts the contrast imaging by the mammography device 10 after a predetermined time has elapsed.
- step S206 the control unit 70 causes the display unit 78 to display information indicating a warning to interrupt contrast imaging before completion of contrast imaging.
- An example of the display of the information showing the said warning displayed on the display part 78 by FIG. 7 is shown.
- FIG. 8 shows another example of the display of the information representing the warning displayed on the display unit 78.
- the information 102 representing the remaining time until interruption of contrast imaging and the information 104 representing a response method in the case of continuing contrast imaging without interruption are also displayed.
- the state displayed on the unit 78 is shown.
- the information 102 represents the remaining time until interruption of contrast imaging, specifically, the remaining time until the predetermined time at which contrast imaging is interrupted after the irradiation instruction signal is stopped.
- the user who confirms the information 104 presses the button 52 of the irradiation instruction apparatus 50 again when not interrupting the contrast imaging.
- the irradiation instruction signal is again input from the irradiation instruction device 50 to the console 6.
- the user leaves the button 52 of the irradiation instruction device 50 as it is without releasing it. In this case, the irradiation instruction signal remains stopped.
- step S208 the control unit 70 determines whether an irradiation instruction signal is input.
- the determination in step S208 is positive, and the process proceeds to step S216.
- the determination in step S208 is positive, and the process proceeds to step S210.
- step S210 the control unit 70 determines whether a predetermined time has elapsed.
- the user After the user releases the button 52 of the irradiation instruction device 50, the user confirms the information 104 representing the warning displayed on the display unit 78 of the console 6, and then the user again determines the predetermined time. It can be determined according to the time until the button 52 of the irradiation instruction device 50 is pressed, the interval between the LE imaging and the HE imaging in the mammography apparatus 10, and the like.
- step S210 If the predetermined time has not elapsed, the determination in step S210 is negative, and the process returns to step S208. On the other hand, when the predetermined time has elapsed, the determination in step S210 is positive, and the process proceeds to step S212.
- step S212 the control unit 70 causes the display unit 78 to display information indicating that the contrast imaging is interrupted.
- FIG. 9 illustrates an example of a state in which the display unit 78 displays information 106 indicating that contrast imaging is interrupted.
- control unit 70 outputs an interruption instruction signal for interrupting contrast imaging to the mammography apparatus 10, and then ends the present control processing.
- the interruption instruction signal is input from the console 6
- the contrast imaging is interrupted as described above, and the compression plate 20 is moved to release the compression of the breast.
- step S216 the control unit 70 determines whether or not contrast imaging has been completed.
- the control unit 70 of the present embodiment considers that the contrast imaging is completed. Therefore, the determination in step S216 is negative until the image data of the second radiation image is input, and the process returns to step S204.
- the determination in step S216 is positive, and the process proceeds to step S218.
- step S218, the control unit 70 causes the display unit 78 to display information indicating the completion of contrast imaging, and then ends the control process.
- FIG. 10 shows an example of a state in which the display unit 78 displays information 108 indicating the completion of contrast imaging.
- the user stops pressing the button 52 of the irradiation instruction device 50.
- the timing at which the information 108 indicating the completion of the contrast imaging is displayed on the display unit 78 of the console 6 can be used as the timing at which the button 52 of the irradiation instruction device 50 is stopped pressing. Therefore, the user can easily recognize the timing at which the pressing of the button 52 is stopped.
- the irradiation instruction device 50 outputs the irradiation instruction signal while the button 52 is pressed by the user.
- the console 6 causes the mammography apparatus 10 to start contrast imaging.
- the console 6 causes the display unit 78 to display information 100 indicating a warning that the contrast imaging is interrupted.
- the console 6 continues the contrast imaging by the mammography apparatus 10 as it is.
- the console 6 interrupts the contrast imaging by the mammography apparatus 10 when the irradiation instruction signal remains stopped even after a predetermined time has elapsed since the irradiation instruction signal stopped.
- the display unit 78 displays the information 100 representing a warning that the console 6 is interrupted in contrast imaging.
- the contrast imaging can be continued without being interrupted.
- the second embodiment will be described in detail below.
- the overall configuration of the radiation imaging system 1 and the configurations of the console 6, the mammography device 10, and the irradiation instruction device 50 are the same as in the first embodiment, and thus the description thereof is omitted.
- the contrast imaging process performed by the control unit 60 of the mammography apparatus 10 is the same as the contrast imaging process (see FIG. 5) performed by the control unit 60 of the mammography apparatus 10 according to the first embodiment, the description is omitted.
- a part of the control processing performed by the control unit 70 of the console 6 is different from the control processing (see FIG. 6) performed by the control unit 70 of the console 6 according to the first embodiment. explain.
- FIG. 11 A flowchart showing an example of the flow of control processing executed by the control unit 70 of the console 6 of the present embodiment is shown in FIG.
- the control process shown in FIG. 11 executes the process of step S203 after step S202 and before step S204, and executes the process of step S217 before step S218 when an affirmative determination is made in step S216.
- This point is different from the control process of the first embodiment (see FIG. 6) in that the process of step S211 is performed before step S212 when the point and the affirmative determination in step S210.
- step S203 the control unit 70 causes the display unit 78 to display information indicating that contrast imaging is being performed.
- FIG. 12 illustrates an example of a state in which the display unit 78 displays information 110 indicating that contrast imaging is being performed.
- the console 6 causes the display unit 78 to display information 110 indicating that contrast imaging is being performed.
- step S211 the control unit 70 ends the display of the information 110 indicating that the contrast imaging displayed on the display unit 78 in step S203 is in progress.
- the contrast imaging by the mammography apparatus 10 is interrupted when a predetermined time elapses after the irradiation instruction signal is stopped.
- the console 6 ends the display of the information 110 indicating that contrast imaging is being performed.
- step S217 the control unit 70 ends the display of the information 110 indicating that the contrast imaging displayed on the display unit 78 in step S203 is in progress.
- the determination in step S216 is positive.
- the console 6 ends the display of the information 110 indicating that contrast imaging is being performed.
- the console 6 causes the display unit 78 to display information 110 indicating that contrast imaging is being performed from when the contrast imaging is started in the mammography apparatus 10 until completion or interruption. .
- the user can easily recognize that the mammography apparatus 10 is performing contrast imaging, and the user may not press the button 52 of the irradiation instruction device 50 even though the contrast imaging is not interrupted. Can be suppressed.
- the third embodiment will be described in detail below.
- the overall configuration of the radiation imaging system 1 and the configurations of the console 6, the mammography device 10, and the irradiation instruction device 50 are the same as in the first embodiment, and thus the description thereof is omitted.
- the control unit 70 of the console 6 of the present embodiment functions as an example of the reception unit of the present disclosure.
- the contrast imaging process performed by the control unit 60 of the mammography apparatus 10 is the same as the contrast imaging process (see FIG. 5) performed by the control unit 60 of the mammography apparatus 10 according to the first embodiment, the description is omitted.
- a part of the control processing performed by the control unit 70 of the console 6 is different from the control processing (see FIG. 6) performed by the control unit 70 of the console 6 according to the first embodiment. explain.
- FIG. 13 is a flowchart showing an example of the flow of control processing executed by the control unit 70 of the console 6 of the present embodiment.
- the control process shown in FIG. 13 is different from the control process (see FIG. 6) of the first embodiment in that the process of step S209 is performed before step S210 when the determination in step S208 is negative.
- FIG. 7 shows an example of display of information representing the warning displayed on the display unit 78 in the present embodiment.
- the information 100 representing the warning shown in FIG. 7, the information 102 representing the remaining time until the interruption of contrast imaging, and the information 104 representing the corresponding method in the case of continuing the contrast imaging without interruption
- a state in which information 120 indicating a response method in the case of further interruption and an interruption instruction button 122 are displayed on the display unit 78 is shown.
- the user operates in advance (discontinues) the suspension instruction button 122 displayed on the display unit 78 using the operation unit 82. Contrast imaging can be interrupted immediately before reaching a certain time.
- step S209 the control unit 70 determines whether or not the interruption instruction button 122 is pressed by the user. If the discontinuation instruction button 122 is not pressed, the determination in step S209 is negative, and the process proceeds to step S210. On the other hand, when the discontinuation instruction button 122 is pressed, the determination in step S209 is positive, and the process proceeds to step S212.
- Contrast imaging can be interrupted immediately before the passage of As a result, when the user does not stop pressing the button 52 of the irradiation instruction apparatus 50 accidentally and wants to truly interrupt the contrast imaging, the contrast imaging can be immediately interrupted.
- the radiation imaging system 1 uses the radiation instructing device 50 that outputs the radiation instruction signal according to the user's operation, and the breast in a state in which the contrast agent is administered Different from the first imaging for generating a first radiation image by the radiation detector 11 by pressing the radiation R of the first energy from the radiation source 29 to the breast according to the irradiation instruction signal, and the first energy
- a mammography apparatus 10 for performing contrast radiography which continuously performs a second radiography in which radiation R of the second energy is emitted from the radiation source 29 to the breast and the second radiation image is generated by the radiation detector 11; After the start of imaging and before the completion of the second imaging, when the irradiation instruction signal is stopped, control to display information 100 representing a predetermined warning on the display unit 78 is performed. It provided with Lumpur 6.
- the display unit 78 displays the information 100 representing a warning that the console 6 is interrupted in contrast imaging.
- the contrast imaging can be continued without being interrupted.
- control unit 70 of the console 6 performs the process of displaying the information 100 representing a warning in response to the stop of the irradiation instruction signal, but instead of the control unit 70 of the console 6, Another apparatus, such as the mammography apparatus 10, may perform the above process.
- other devices also perform each process included in the contrast imaging process performed by the control unit 60 of the mammography apparatus 10 described in each of the above embodiments and each process included in the control process performed by the console 6 It may be.
- the display content, display method and display location of the information 100 representing a warning are not particularly limited. It may be any method and place that can be easily recognized by the user who presses the button 52 of the irradiation instruction device 50. For example, it may be displayed by voice, or a warning may be given by blinking or lighting an LED (Light Emitting Diode) provided in the mammography apparatus 10.
- LED Light Emitting Diode
- various processors other than the CPU may execute the contrast imaging process and the control process executed by the CPU executing the software (program) in the above-described embodiments.
- a processor in this case, in order to execute specific processing such as PLD (Programmable Logic Device) or ASIC (Application Specific Integrated Circuit) whose circuit configuration can be changed after manufacturing an FPGA (field-programmable gate array) or the like.
- a dedicated electric circuit or the like which is a processor having a circuit configuration specially designed is exemplified.
- contrast imaging processing and control processing may be performed by one of these various processors, or a combination of two or more processors of the same or different types (for example, a plurality of FPGAs, and a CPU and an FPGA) And so on).
- the hardware-like structure of these various processors is, more specifically, an electric circuit in which circuit elements such as semiconductor elements are combined.
- various programs stored in the control unit 60 of the mammography apparatus 10 and the control unit 70 of the console 6 are stored (installed in advance) in the ROM (60B, 70B) of the control unit 60 and the control unit 70 in advance.
- the contrast imaging processing program and control processing program are recorded in a recording medium such as a compact disk read only memory (CD-ROM), a digital versatile disk read only memory (DVD-ROM), and a universal serial bus (USB) memory. May be provided by Furthermore, the contrast imaging processing program and the control processing program may be downloaded from an external device via a network.
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Abstract
Description
本開示の制御装置は、プロセッサを有する制御装置であって、プロセッサが、造影剤が投与された状態の乳房を圧迫板により圧迫し、ユーザの操作に応じて指示部から出力された指示信号に応じて第1のエネルギーの放射線を放射線源から乳房に照射させて放射線検出器により第1放射線画像を生成する第1の撮影、及び第1のエネルギーと異なる第2のエネルギーの放射線を放射線源から乳房に照射させて放射線検出器により第2放射線画像を生成する第2の撮影を連続して行う造影撮影を行うマンモグラフィ装置の制御方法であって、第1の撮影の開始後、第2の撮影が完了する前に、指示信号が停止したか否かを判定し、指示信号が停止したと判定した場合に、予め定められた警告を表す情報を表示部に表示させる。
まず、本実施形態の放射線画像撮影システムの全体の構成の一例について説明する。図1には、本実施形態の放射線画像撮影システム1の全体の構成の一例を表す構成図を示す。
以下、第2実施形態について詳細に説明する。
放射線画像撮影システム1の全体構成と、コンソール6、マンモグラフィ装置10、及び照射指示装置50各々の構成とは、第1実施形態と同様であるため、説明を省略する。また、マンモグラフィ装置10の制御部60が実行する造影撮影処理も第1実施形態のマンモグラフィ装置10の制御部60が実行する造影撮影処理(図5参照)と同様であるため説明を省略する。本実施形態では、コンソール6の制御部70が実行する制御処理の一部の処理が第1実施形態のコンソール6の制御部70が実行する制御処理(図6参照)と異なるため、異なる処理について説明する。
以下、第3実施形態について詳細に説明する。
放射線画像撮影システム1の全体構成と、コンソール6、マンモグラフィ装置10、及び照射指示装置50各々の構成とは、第1実施形態と同様であるため、説明を省略する。なお、本実施形態のコンソール6の制御部70が、本開示の受付部の一例として機能する。
2017年7月27日出願の日本国特許出願2017-145848号の開示は、その全体が参照により本明細書に取り込まれる。
本明細書に記載された全ての文献、特許出願、及び技術規格は、個々の文献、特許出願、及び技術規格が参照により取り込まれることが具体的かつ個々に記された場合と同程度に、本明細書中に取り込まれる。
6 コンソール
10 マンモグラフィ装置
11 放射線検出器、11A 検出面
12 撮影部
14 基台部
16 撮影台
18 保持部
20 圧迫板
21 圧迫板駆動部
22 支持部
24 撮影面
26 支持アーム
28 放射線照射部
29 放射線源
42 Rhフィルタ
44 Cuフィルタ
50 照射指示装置
52 ボタン
54 I/F部
56 把持部
60、70 制御部
60A、70A CPU
60B、70B ROM
60C、70C RAM
62、72 記憶部
64、74 I/F部
66 操作パネル
68 線源駆動部
69、83 バス
76 表示部駆動部
78 表示部
80 操作入力検出部
82 操作部
100、102、104、106、108、110、120、情報
122 中断指示ボタン
R 放射線
Claims (12)
- ユーザの操作に応じて指示信号を出力する指示部と、
造影剤が投与された状態の乳房を圧迫板により圧迫し、前記指示信号に応じて第1のエネルギーの放射線を放射線源から前記乳房に照射させて放射線検出器により第1放射線画像を生成する第1の撮影、及び前記第1のエネルギーと異なる第2のエネルギーの放射線を前記放射線源から前記乳房に照射させて前記放射線検出器により第2放射線画像を生成する第2の撮影を連続して行う造影撮影を行うマンモグラフィ装置と、
前記第1の撮影の開始後、前記第2の撮影が完了する前に、前記指示信号が停止した場合に、予め定められた警告を表す情報を表示部に表示させる制御を行う制御部と、
を備えた放射線画像撮影システム。 - 前記制御部は、前記警告を表す情報を前記表示部に表示させた後、予め定められた時間が経過した後に、前記指示信号の停止が維持されている場合、前記マンモグラフィ装置による前記造影撮影を中断させる、
請求項1に記載の放射線画像撮影システム。 - 前記マンモグラフィ装置は、前記造影撮影を中断する場合、前記圧迫板による前記乳房の圧迫を解除する、
請求項2に記載の放射線画像撮影システム。 - 前記警告を表す情報は、前記造影撮影を中断させるまでの残り時間を表す情報を含む、
請求項2または請求項3に記載の放射線画像撮影システム。 - 前記造影撮影の中断の指示を受け付ける受付部をさらに備え、
前記制御部は、前記受付部が前記中断の指示を受け付けた場合、前記マンモグラフィ装置による前記造影撮影を中断させる、
請求項2から請求項4のいずれか1項に記載の放射線画像撮影システム。 - 前記制御部は、前記指示信号が停止した後、前記予め定められた時間が経過する前に前記指示部から前記指示信号が再び出力された場合、前記マンモグラフィ装置による前記造影撮影を継続させる、
請求項2から請求項5のいずれか1項に記載の放射線画像撮影システム。 - 前記警告を表す情報は、前記造影撮影を中断することを表す情報を含む、
請求項1から請求項6のいずれか1項に記載の放射線画像撮影システム。 - 前記制御部は、前記マンモグラフィ装置による前記造影撮影の開始から完了または中断までの間、前記表示部に、前記造影撮影中であることを表す情報を表示させる、
請求項1から請求項7のいずれか1項に記載の放射線画像撮影システム。 - 前記制御部は、前記造影撮影が完了した場合、前記造影撮影の完了を表す情報を前記表示部に表示させる、
請求項1から請求項8のいずれか1項に記載の放射線画像撮影システム。 - 造影剤が投与された状態の乳房を圧迫板により圧迫し、ユーザの操作に応じて指示部から出力された指示信号に応じて第1のエネルギーの放射線を放射線源から前記乳房に照射させて放射線検出器により第1放射線画像を生成する第1の撮影、及び前記第1のエネルギーと異なる第2のエネルギーの放射線を前記放射線源から前記乳房に照射させて前記放射線検出器により第2放射線画像を生成する第2の撮影を連続して行う造影撮影を行うマンモグラフィ装置を制御する制御装置であって、
前記第1の撮影の開始後、前記第2の撮影が完了する前に、前記指示信号が停止したか否かを判定する判定部と、
前記判定部が前記指示信号が停止したと判定した場合に、予め定められた警告を表す情報を表示部に表示させる制御を行う制御部と、
を備えた制御装置。 - 造影剤が投与された状態の乳房を圧迫板により圧迫し、ユーザの操作に応じて指示部から出力された指示信号に応じて第1のエネルギーの放射線を放射線源から前記乳房に照射させて放射線検出器により第1放射線画像を生成する第1の撮影、及び前記第1のエネルギーと異なる第2のエネルギーの放射線を前記放射線源から前記乳房に照射させて前記放射線検出器により第2放射線画像を生成する第2の撮影を連続して行う造影撮影を行うマンモグラフィ装置の制御方法であって、
前記第1の撮影の開始後、前記第2の撮影が完了する前に、前記指示信号が停止したか否かを判定し、
前記指示信号が停止したと判定した場合に、予め定められた警告を表す情報を表示部に表示させる処理を含む、
制御方法。 - 造影剤が投与された状態の乳房を圧迫板により圧迫し、ユーザの操作に応じて指示部から出力された指示信号に応じて第1のエネルギーの放射線を放射線源から前記乳房に照射させて放射線検出器により第1放射線画像を生成する第1の撮影、及び前記第1のエネルギーと異なる第2のエネルギーの放射線を前記放射線源から前記乳房に照射させて前記放射線検出器により第2放射線画像を生成する第2の撮影を連続して行う造影撮影を行うマンモグラフィ装置の制御をコンピュータに実行させるための制御プログラムであって、
前記第1の撮影の開始後、前記第2の撮影が完了する前に、前記指示信号が停止したか否かを判定し、
前記指示信号が停止したと判定した場合に、予め定められた警告を表す情報を表示部に表示させる
処理をコンピュータ実行させるための制御プログラム。
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EP3659506A4 (en) | 2020-07-08 |
US20200155100A1 (en) | 2020-05-21 |
JP7161570B2 (ja) | 2022-10-26 |
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