WO2021181769A1 - 放射線撮影システムのコンソール、放射線撮影システムのコンソールの作動方法、放射線撮影システムのコンソールの作動プログラム - Google Patents

放射線撮影システムのコンソール、放射線撮影システムのコンソールの作動方法、放射線撮影システムのコンソールの作動プログラム Download PDF

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Publication number
WO2021181769A1
WO2021181769A1 PCT/JP2020/045330 JP2020045330W WO2021181769A1 WO 2021181769 A1 WO2021181769 A1 WO 2021181769A1 JP 2020045330 W JP2020045330 W JP 2020045330W WO 2021181769 A1 WO2021181769 A1 WO 2021181769A1
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WIPO (PCT)
Prior art keywords
processing
imaging
display
computer
cad
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/045330
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English (en)
French (fr)
Japanese (ja)
Inventor
亮 今邨
和浩 牧野
西納　直行
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Corp
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Fujifilm Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Corp filed Critical Fujifilm Corp
Priority to JP2022505763A priority Critical patent/JP7381714B2/ja
Priority to CN202080097055.2A priority patent/CN115135247B/zh
Publication of WO2021181769A1 publication Critical patent/WO2021181769A1/ja
Priority to US17/814,835 priority patent/US12251254B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4405—Constructional features of apparatus for radiation diagnosis the apparatus being movable or portable, e.g. handheld or mounted on a trolley
    • 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
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4488—Means for cooling
    • 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
    • A61B6/46—Arrangements for interfacing with the operator or the patient
    • A61B6/461—Displaying means of special interest
    • A61B6/465—Displaying means of special interest adapted to display user selection data, e.g. graphical user interface, icons or menus
    • 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
    • A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
    • A61B6/5211—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data
    • A61B6/5217—Devices using data or image processing specially adapted for radiation diagnosis involving processing of medical diagnostic data extracting a diagnostic or physiological parameter from medical diagnostic data

Definitions

  • the technology of the present disclosure relates to the console of the radiography system, the operation method of the console of the radiography system, and the operation program of the console of the radiography system.
  • the radiography system includes a radiation generating unit that emits radiation, a radiation image detection device, and a console.
  • the radiation image detection device receives radiation emitted from the radiation generating unit and transmitted through the subject, and outputs a radiation image.
  • the console receives a radiation image from the radiation image detection device and performs image processing on the received radiation image.
  • the radiographic image after image processing is immediately displayed on the display at the shooting site so that the operator can confirm the image quality.
  • CAD Computer Aided Diagnosis
  • processing is performed on a radiographic image to extract candidates for lesions such as tumors reflected in the radiological image (International Publication No. 2015). / 076067).
  • the CAD processing function is mounted on the console (referred to as the imaging device control unit in International Publication No. 2015/076067).
  • the CAD processing function When the CAD processing function is installed in the console as in the radiography system described in International Publication No. 2015/076067, the following problems are concerned. That is, in order for the operator to confirm the appearance of the radiation image, a series of processes of receiving the radiation image from the radiation image detection device and performing image processing on the received radiation image (hereinafter referred to as display-related processing).
  • display-related processing When the CAD processing conflicts with each other, the display-related processing may be delayed due to the CAD processing having a relatively large processing load. If the display-related processing is delayed, for example, the radiation image may not be received normally or the image processing may not proceed, which may hinder the display of the radiation image.
  • the technology of the present disclosure provides a console of a radiography system, a method of operating the console of a radiography system, and an operation program of the console of a radiography system, which enables an operator to check the appearance of a radiographic image without any trouble.
  • the purpose is a console of a radiography system, a method of operating the console of a radiography system, and an operation program of the console of a radiography system, which enables an operator to check the appearance of a radiographic image without any trouble.
  • the console of the radiography system of the present disclosure is a console of a radiography system including at least one processor, and the processor displays a radiological image obtained by radiography at a radiography site.
  • Display-related processing for receiving radiation images from a radiation image detection device, display-related processing including image processing for processing the received radiation images for display, and a computer for the radiation images after image processing.
  • the priority process that prioritizes the display-related process over the computer-aided diagnosis process is executed.
  • the processor prohibits the execution of the computer-aided diagnosis process while the display-related process is being executed.
  • the processor started the display-related processing related to the next shooting between the end of the display-related processing related to the current shooting and the subsequent automatic start of the computer-aided diagnosis processing related to the current shooting. In this case, it is preferable not to start the computer-aided diagnosis process related to this shooting.
  • the processor preferably interrupts the computer-aided diagnosis process related to the first image capture and starts the display-related process related to the second image capture after the first image capture.
  • the processor automatically restarts the computer-aided diagnosis processing related to the interrupted first shooting after finishing the display-related processing related to the second shooting.
  • the processor After finishing the display-related processing related to the second shooting, the processor accepts a selection instruction by the operator as to whether or not to restart the computer-aided diagnosis processing related to the interrupted first shooting, and accepts a selection instruction to restart.
  • a selection instruction by the operator as to whether or not to restart the computer-aided diagnosis processing related to the interrupted first shooting
  • accepts a selection instruction to restart In this case, when the computer-aided diagnosis process related to the interrupted first imaging is restarted and the selection instruction not to restart is received, it is preferable not to restart the computer-aided diagnosis process related to the interrupted first imaging.
  • the processor resumes the computer-aided diagnosis process for the interrupted first capture if the second capture was not a re-shoot of the first capture, and interrupted if the second capture was a re-shoot. It is preferable not to restart the computer-aided diagnosis process related to the first imaging.
  • the processor considers that the second imaging is not a re-imaging and resumes the computer-aided diagnosis processing related to the interrupted first imaging, and the imaging site is the first imaging. If it is the same as, it is preferable not to restart the computer-aided diagnosis process related to the interrupted first imaging, assuming that the second imaging is a re-imaging.
  • the processor notifies the operator that the computer-aided diagnosis process related to the first imaging has been interrupted.
  • the processor allocates a part of the resources allocated to the computer-aided diagnosis process related to the first imaging to the display-related processing related to the second imaging after the first imaging, and the second It is preferable that the resources allocated to the display-related processing related to the imaging of the above are larger than those of the computer-aided diagnosis processing related to the first imaging.
  • the processor preferably accepts an operator's instruction to execute computer-aided diagnosis processing.
  • the processor preferably has two subprocessors, a first subprocessor that executes display-related processing and a second subprocessor that executes computer-aided diagnosis processing.
  • the processor preferably starts display-related processing at the start timing of reception processing.
  • the processor starts the display-related processing at the timing of transmitting the irradiation start synchronization signal notifying the radiation image detection device of the start of irradiation of radiation.
  • the processor preferably raises the cooling level of the cooling mechanism higher than usual during at least computer-aided diagnosis processing.
  • the method of operating the console of the radiography system of the present disclosure is a display-related process for displaying a radiographic image obtained by radiography at an imaging site, a reception process for receiving a radiographic image from a radiographic image detection device, and a reception process.
  • a display-related processing step that executes display-related processing including image processing that processes the received radiation image for display, and a computer-aided diagnosis processing step that executes computer-aided diagnosis processing on the radiation image after image processing, and display.
  • a priority process step that prioritizes the display-related process over the computer-aided diagnosis process is provided.
  • the operation program of the console of the radiography system of the present disclosure is a display-related process for displaying a radiographic image obtained by radiography at an imaging site, a reception process for receiving a radiographic image from a radiographic image detection device, and a reception process.
  • a display-related processing unit that executes display-related processing including image processing that processes the received radiation image for display, and a computer-aided diagnosis processing unit that executes computer-aided diagnosis processing on the radiation image after image processing, and display.
  • the computer functions as a priority processing unit that prioritizes the display-related processing over the computer-aided diagnosis processing.
  • the console of a radiography system the operation method of the console of a radiography system, and the operation program of the console of a radiography system are provided so that the operator can confirm the appearance of a radiographic image without any trouble. be able to.
  • the N + 1th shooting is performed, and the display-related processing related to the N + 1th shooting is performed.
  • FIG. 9 It is a figure which shows the state which the result of CAD processing is displayed. It is a figure which shows the state which the message box which shows that the CAD process was interrupted is displayed. It is a flowchart which shows the aspect shown in FIG. 9 and FIG. It is a flowchart which shows the aspect shown in FIG. It is a figure which shows the 2nd Embodiment which receives the execution instruction of a CAD process by an operator.
  • the CAD process related to the Nth shooting was executed by the execution instruction signal, the N + 1th shooting was performed after the CAD processing related to the Nth shooting was completed, and the display-related processing related to the N + 1th shooting was started. It is a figure which shows the case.
  • FIG. 37 it is a diagram showing a case where the N + 1th imaging is performed and the display-related processing related to the N + 1th imaging is started while the CAD processing related to the Nth imaging is being executed. It is a flowchart which shows the aspect shown in FIG. 38. It is a flowchart which shows the aspect shown in FIG. 39.
  • the radiography system 2 includes a mobile radiation generator 10 and an electronic cassette 11.
  • the mobile radiation generator 10 has a radiation generating unit 15 and a trolley unit 16.
  • the radiation generating unit 15 emits radiation R toward the subject H lying on the bed 17, for example.
  • the bogie portion 16 has a pair of left and right front wheels 18 and a pair of left and right rear wheels 19.
  • the mobile radiation generator 10 can be moved in the hospital by the trolley unit 16.
  • the mobile radiation generator 10 is used for so-called round-trip photography in which the subject H is photographed while rotating around the hospital room. Therefore, the mobile radiation generator 10 is also called a round-trip vehicle.
  • the mobile radiation generator 10 can also be brought into the operating room and used during surgery. Further, the mobile radiation generator 10 can be brought to an outdoor disaster site or the like for emergency use.
  • the electronic cassette 11 is a radiographic image detection device in which a sensor panel is built in a portable housing and is wirelessly driven by a battery.
  • the sensor panel has a configuration in which a plurality of pixels that generate a signal charge in response to radiation R or visible light converted from radiation R are arranged.
  • the electronic cassette 11 is placed under the subject H, for example, receives the radiation R irradiated from the radiation generating unit 15 and transmitted through the subject H, and outputs a radiation image 20.
  • the main body 25 is mounted on the bogie 16.
  • the main body 25 includes a central portion 26, a strut portion 27, an arm portion 28, and the like, in addition to the radiation generating portion 15 described above.
  • the central portion 26 has a UI (User Interface) system device 29, a cassette storage portion 30, and a handle 31.
  • the UI device 29 includes a touch panel display 32 (hereinafter, simply referred to as a display) and an operation panel 33.
  • the display 32 displays a radiation image 20 and the like.
  • the operation panel 33 is operated by an operator OP such as a radiological technologist when setting the irradiation condition 76 (see FIG. 5) of the radiation R.
  • the cassette storage portion 30 is provided on the rear side of the central portion 26.
  • the cassette storage unit 30 stores the electronic cassette 11.
  • the cassette storage unit 30 can store a plurality of electronic cassettes 11 having a plurality of types regardless of the type. Further, the cassette storage unit 30 has a function of charging the battery of the stored electronic cassette 11.
  • the handle 31 is provided so as to surround the upper part of the central portion 26.
  • the handle 31 is gripped by the operator OP in order to steer the carriage portion 16, and thus the mobile radiation generator 10.
  • the operator OP runs the mobile radiation generator 10 while grasping the handle 31 in the state shown in FIG. 2 in which the radiation generating unit 15 is housed in the upper portion of the carriage portion 16 and the front portion side of the central portion 26.
  • An irradiation switch 34 is attached to the central portion 26.
  • the irradiation switch 34 is a switch for the operator OP to instruct the start of irradiation of radiation.
  • An extension cable is connected to the irradiation switch 34, and it can be removed from the central portion 26 for use.
  • the irradiation switch 34 is, for example, a two-stage pressing type.
  • the irradiation switch 34 generates a warm-up instruction signal 77 (see FIG. 5) when it is pressed (half-pressed) up to the first stage, and irradiates when it is pressed (fully pressed) up to the second stage.
  • a start instruction signal 78 (see FIG. 5) is generated.
  • the strut portion 27 has a prismatic shape and is erected in the center of the bogie portion 16.
  • the base end of the arm portion 28 is attached to the strut portion 27, and the radiation generating portion 15 is attached to the tip of the arm portion 28 which is a free end on the opposite side of the base end.
  • the strut portion 27 has a first strut 40 and a second strut 41 connected upward from the first strut 40 at a predetermined angle.
  • the first support column 40 is provided on the upper surface of the carriage portion 16.
  • the second support column 41 is rotatable with respect to the first support column 40 with the vertical axis as the rotation axis.
  • the arm portion 28 can be bent with respect to the second support column 41 or extended in the direction along the second support column 41.
  • the radiation generating unit 15 can swing back and forth with respect to the arm unit 28.
  • the radiation generating unit 15 is composed of a radiation source 45 and an irradiation field limiting device 46.
  • a radiation tube 47 is built in the radiation source 45.
  • the radiation tube 47 generates, for example, X-rays as radiation R.
  • the radiation tube 47 is provided with a filament, a target, a grid electrode, and the like (none of which are shown).
  • a voltage is applied between the filament, which is the cathode, and the target, which is the anode, from the voltage generator 48 built in the central portion 26.
  • the voltage applied between the filament and the target is called the tube voltage.
  • the filament emits thermions corresponding to the applied tube voltage toward the target.
  • the target emits radiation R by the collision of thermions from the filament.
  • the grid electrodes are located between the filament and the target.
  • the grid electrode changes the flow rate of thermions from the filament to the target according to the voltage applied from the voltage generator 48.
  • the flow rate of thermions from this filament to the target is called the tube current.
  • the tube voltage and tube current are set as the irradiation condition 76 together with the irradiation time.
  • the irradiation switch 34 When the irradiation switch 34 is pressed halfway and a warm-up instruction signal 77 is generated, the filament is preheated and the rotation of the target is started at the same time. Warm-up is complete when the filament reaches the specified temperature and the target reaches the specified number of revolutions.
  • the irradiation switch 34 When the irradiation switch 34 is fully pressed to generate the irradiation start instruction signal 78 in the state where the warm-up is completed, the tube voltage is applied from the voltage generator 48 and the radiation R is generated from the radiation tube 47.
  • the irradiation time set in the irradiation condition 76 elapses from the start of the generation of the radiation R, the application of the tube voltage is stopped and the irradiation of the radiation R is terminated.
  • the irradiation field limiter 46 limits the irradiation field of the radiation R generated from the radiation tube 47.
  • the irradiation field limiter 46 has a configuration in which, for example, four shielding plates such as lead that shields radiation R are arranged on each side of the quadrangle, and a quadrangular emission opening for transmitting radiation is formed in the central portion. ..
  • the irradiation field limiting device 46 changes the size of the exit opening by changing the position of each shielding plate, thereby changing the irradiation field of the radiation R.
  • the mobile radiation generator 10 includes a communication unit 50, a storage device 51, a memory 52, a CPU (Central Processing Unit) 53, and the like.
  • the communication unit 50, the storage device 51, the memory 52, the CPU 53, and the like are connected to each other via the bus line 54.
  • a UI device 29 and a voltage generator 48 are also connected to the bus line 54.
  • the communication unit 50, the storage device 51, the memory 52, the CPU 53, the bus line 54, and the UI device 29 form a console 55.
  • the console 55 is an example of a “radiography system console” according to the technique of the present disclosure.
  • the storage device 51, the memory 52, the CPU 53, and the bus line 54 are examples of the "computer” according to the technique of the present disclosure.
  • the CPU 53 is an example of a "processor" according to the technique of the present disclosure.
  • the communication unit 50 includes a wireless communication interface that wirelessly communicates with the electronic cassette 11. Further, the communication unit 50 includes a network interface that wirelessly communicates with an external device other than the electronic cassette 11 via a network. Examples of the external device include a radiological information system (RIS) that manages information such as an imaging order, and an image storage communication system (PACS; Picture Archiving and Communication Systems). Further, as an example of the network, a WAN (Wide Area Network) such as the Internet or a public communication network can be mentioned.
  • RIS radiological information system
  • PES Picture Archiving and Communication Systems
  • the storage device 51 is, for example, a hard disk drive, a solid state drive, or the like, and stores various programs and various data associated with the various programs.
  • the memory 52 is a work memory for the CPU 53 to execute a process.
  • the CPU 53 reads the program stored in the storage device 51 into the memory 52, and executes processing according to the read program. As a result, the CPU 53 comprehensively controls the operation of each part of the mobile radiation generator 10.
  • the above-mentioned irradiation switch 34 is connected to the CPU 53.
  • the irradiation switch 34 outputs a warm-up instruction signal 77 and an irradiation start instruction signal 78 to the CPU 53.
  • a cooling fan 56 is attached to the CPU 53.
  • the cooling fan 56 is an example of a "cooling mechanism" according to the technique of the present disclosure.
  • a power feeding unit 57 is connected to the bus line 54.
  • the power supply unit 57 supplies the electric power from the battery 58 to each unit of the mobile radiation generator 10.
  • the power feeding unit 57 includes a DC (Direct Current) -DC converter that converts a direct current voltage from the battery 58 into a voltage having a value corresponding to the supply destination, a voltage stabilizing circuit that stabilizes the converted voltage value, and the like.
  • the battery 58 is built in, for example, the central portion 26. In this way, the mobile radiation generator 10 is wirelessly driven by the battery 58.
  • the mobile radiation generator 10 can charge the battery 58 or use electric power from the commercial power source by connecting a power cord plug (not shown) extending from the lower part of the main body 25 to the outlet of the commercial power source. It is possible to work.
  • the operation program 60 is stored in the storage device 51.
  • the operation program 60 is a program for operating a computer including a storage device 51, a memory 52, a CPU 53, and a bus line 54 as a "console of a radiography system" according to the technique of the present disclosure. That is, the operation program 60 is an example of the “operation program of the console of the radiography system” according to the technique of the present disclosure.
  • the storage device 51 also stores the irradiation condition table 61.
  • the CPU 53 By executing the operation program 60, the CPU 53 cooperates with the memory 52 and the like to perform the reception unit 65, the irradiation control unit 66, the cassette control unit 67, the display-related processing unit 68, the display control unit 69, and the computer-aided diagnosis processing. It functions as a unit (hereinafter, CAD processing unit) 70 and a main control unit 71.
  • CAD processing unit CAD processing unit
  • the reception unit 65 receives the shooting menu 75 input from the operator OP via the operation panel 33.
  • the reception unit 65 reads out the irradiation condition 76 corresponding to the received imaging menu 75 from the irradiation condition table 61, and outputs the read irradiation condition 76 to the irradiation control unit 66.
  • the reception unit 65 also receives the warm-up instruction signal 77 and the irradiation start instruction signal 78 from the irradiation switch 34.
  • the reception unit 65 outputs to the irradiation control unit 66 that the warm-up instruction signal 77 has been received and that the irradiation start instruction signal 78 has been received.
  • the irradiation control unit 66 controls the irradiation of radiation R by controlling the operation of the radiation tube 47.
  • the irradiation control unit 66 sets the irradiation condition 76 in the voltage generator 48.
  • the reception unit 65 inputs that the warm-up instruction signal 77 has been received, the irradiation control unit 66 causes the radiation tube 47 to warm up.
  • the irradiation control unit 66 receives the irradiation start instruction signal 78 from the reception unit 65, the irradiation control unit 66 transmits the radiation R from the radiation tube 47 under the set irradiation condition 76 via the voltage generator 48. Irradiate.
  • the irradiation control unit 66 outputs to the cassette control unit 67 that the irradiation of the radiation R has been started in accordance with the irradiation start timing of the radiation R. Further, the irradiation control unit 66 outputs to the cassette control unit 67 that the irradiation of the radiation R has been completed in accordance with the irradiation end timing of the radiation R.
  • the cassette control unit 67 controls the operation of the electronic cassette 11 by transmitting various control signals to the electronic cassette 11 via the communication unit 50.
  • the cassette control unit 67 transmits an irradiation start synchronization signal 79 to the electronic cassette 11. Further, when the irradiation control unit 66 inputs that the irradiation of the radiation R has been completed, the cassette control unit 67 transmits the irradiation end synchronization signal 80 to the electronic cassette 11.
  • the cassette control unit 67 transmits a signal charge gain value or the like according to the irradiation condition 76 to the electronic cassette 11.
  • the display-related processing unit 68 executes display-related processing for causing the operator OP to confirm the appearance of the radiation image 20 by displaying the radiation image 20 at the shooting site.
  • the display-related processing unit 68 includes an image receiving unit 85 and an image processing unit 86.
  • the image receiving unit 85 performs a reception process of receiving the radiation image 20 from the electronic cassette 11 via the communication unit 50.
  • the image receiving unit 85 outputs the received radiation image 20 to the image processing unit 86.
  • the electronic cassette 11 transmits an image transmission notification signal 87 prior to receiving the radiographic image 20.
  • the image transmission notification signal 87 is a signal that notifies the mobile radiation generator 10 from the electronic cassette 11 that the radiation image 20 is to be transmitted from now on.
  • the image receiving unit 85 receives the image transmission notification signal 87. At the timing when the image transmission notification signal 87 is received by the image receiving unit 85, the display-related processing by the display-related processing unit 68 is started.
  • the image processing unit 86 performs image processing for processing the radiation image 20 for display. Specifically, the image processing unit 86 performs offset correction processing, sensitivity correction processing, defect pixel correction processing, and the like as image processing.
  • the offset correction process is a process of subtracting the offset correction image detected in the state where the radiation R is not irradiated from the radiation image 20 in pixel units.
  • the image processing unit 86 removes fixed pattern noise caused by dark charges and the like from the radiation image 20 by performing this offset correction processing.
  • the sensitivity correction process is a process for correcting variations in the sensitivity of each pixel, variations in the output characteristics of a circuit that reads out signal charges, and the like, based on the sensitivity correction data.
  • the defective pixel correction process is a process of linearly interpolating the pixel values of defective pixels with the pixel values of surrounding normal pixels based on the information of defective pixels having abnormal pixel values generated at the time of shipment or periodic inspection.
  • These offset correction processing, sensitivity correction processing, and defective pixel correction processing are indispensable processes for making the image quality of the radiation image 20 able to withstand the display.
  • the image processing unit 86 outputs the radiation image 20 subjected to such various image processing to the display control unit 69 and the CAD processing unit 70. At the timing when the radiation image 20 is output from the image processing unit 86, the display-related processing by the display-related processing unit 68 is completed.
  • the CAD processing unit 70 executes CAD processing on the radiographic image 20.
  • the CAD process is, for example, a process of extracting a candidate for a lesion such as a tumor shown in a radiographic image 20.
  • the CAD processing unit 70 outputs the result of the CAD processing to the display control unit 69.
  • the CPU 53 which is one processor, executes both the display-related processing and the CAD processing.
  • the display control unit 69 controls the display of the radiation image 20 on the display 32. Further, the display control unit 69 controls to display the result of the CAD process on the display 32 (see FIG. 15).
  • the main control unit 71 controls the operations of the irradiation control unit 66, the cassette control unit 67, the display-related processing unit 68, the display control unit 69, and the CAD processing unit 70. For example, when the display-related processing by the display-related processing unit 68 and the CAD processing by the CAD processing unit 70 conflict with each other, the main control unit 71 executes priority processing in which the display-related processing is prioritized over the CAD processing. That is, the main control unit 71 is an example of the "priority processing unit" according to the technique of the present disclosure.
  • the main control unit 71 also controls the operation of the cooling fan 56. More specifically, the main control unit 71 raises or lowers the cooling level of the cooling fan 56 by increasing or decreasing the rotation speed of the cooling fan 56.
  • the shooting menu 75 defines a shooting technique in which a shooting site, a posture, and a shooting direction are set, such as "front of the chest lying down".
  • the imaging site includes the head, neck, abdomen, waist, shoulders, elbows, hands, knees, ankles, and the like.
  • the posture includes a standing position, a sitting position, and the like.
  • the shooting direction includes the back, the side, and the like.
  • the shooting menu 75 also includes information on the body shape of the subject H such as "small body shape".
  • the irradiation condition 76 is a set of tube voltage, tube current, and irradiation time as described above. Instead of the tube current and the irradiation time, the tube current irradiation time product may be set as the irradiation condition 76.
  • the mobile radiation generator 10 receives an imaging order from the RIS through the communication unit 50.
  • an ID Identity Data
  • the mobile radiation generator 10 displays the imaging order from the RIS on the display 32 in response to the operation of the operator OP.
  • the operator OP confirms the content of the shooting order through the display 32.
  • the mobile radiation generator 10 displays one of a plurality of electronic cassettes 11 housed in the cassette storage unit 30 on the display 32 in a selectable form.
  • the operator OP selects one electronic cassette 11 that shoots the subject H indicated by the shooting order.
  • the selected electronic cassette 11 and the shooting order are associated with each other.
  • the mobile radiation generator 10 displays the photographing menu 75 on the display 32 in a selectable form.
  • the operator OP selects the shooting menu 75 that matches the shooting technique specified in the shooting order and the body shape of the subject H.
  • the photographing menu 75 is received by the reception unit 65, and the irradiation condition 76 corresponding to this is read from the irradiation condition table 61 to the reception unit 65.
  • the irradiation control unit 66 sets the irradiation condition 76 in the voltage generator 48.
  • the irradiation condition 76 read from the irradiation condition table 61 can be finely adjusted by the operator OP via the operation panel 33 before being set in the voltage generator 48.
  • the radiation tube 47 generates radiation R in accordance with the irradiation start instruction signal 78 from the irradiation switch 34.
  • the electronic cassette 11 performs a reset operation (not shown) of reading dark charges from the pixels of the sensor panel and discarding them in response to the irradiation start synchronization signal 79 transmitted in accordance with the irradiation start timing of the radiation R, and then the pixels. Performs an accumulation operation to accumulate signal charges in. Further, the electronic cassette 11 reads out the signal charge accumulated in the pixels according to the irradiation end synchronization signal 80 transmitted in accordance with the irradiation end timing of the radiation R, and outputs the signal charge as the radiation image 20. I do.
  • a series of operations of irradiating the radiation R from the radiation tube 47 and outputting the radiation image 20 from the electronic cassette 11 in this way is defined as "radiation imaging" according to the technique of the present disclosure.
  • the display-related processing related to the Nth (N is a natural number of 1 or more) radiography (hereinafter referred to as the Nth radiography) is completed by the display-related processing unit 68.
  • the CAD processing unit 70 is automatically started to perform the CAD processing related to the Nth imaging.
  • the set time is, for example, 1 minute.
  • the Nth photography is an example of the "current photography” and the “first photography” according to the technique of the present disclosure.
  • FIG. 9 shows a case where the N + 1th radiography (hereinafter referred to as N + 1th radiography) is performed after the CAD processing related to the Nth radiography is completed, and the display-related processing related to the N + 1th radiography is started. Is shown.
  • the main control unit 71 since the CAD processing related to the Nth shooting and the display-related processing related to the N + 1th shooting do not conflict with each other, the main control unit 71 does not execute the priority processing that prioritizes the display-related processing over the CAD processing.
  • the N + 1th shooting is an example of the "next shooting" and the "second shooting" according to the technique of the present disclosure.
  • FIG. 10 shows that the N + 1th imaging is performed and the N + 1th imaging is performed between the end of the display-related processing related to the Nth imaging and the start of the CAD processing related to the Nth imaging.
  • the main control unit 71 does not start the CAD process related to the Nth shooting. That is, the main control unit 71 prohibits the execution of the CAD process as the priority process while the display-related process is being executed.
  • the main control unit 71 causes the CAD processing unit 70 to execute the CAD processing related to the Nth shooting whose start has been postponed. After the CAD processing related to the Nth imaging is completed, the main control unit 71 causes the CAD processing unit 70 to continuously execute the CAD processing related to the N + 1th imaging. From the end of the display-related processing related to the N + 1th shooting to the start of the CAD processing related to the Nth shooting, the N + 2nd shooting is performed, and the display-related processing related to the N + 2nd shooting is performed. When the processing is started, the CAD processing related to the Nth shooting and the CAD processing related to the N + 1th shooting are not executed, and are carried over after the display-related processing related to the N + 2nd shooting is completed.
  • FIG. 11 shows a case where the N + 1th imaging is performed while the CAD process related to the Nth imaging is being executed.
  • the main control unit 71 interrupts the CAD processing related to the Nth shooting as a priority process.
  • the display-related processing related to the N + 1th shooting is started.
  • the CAD processing unit 70 temporarily stores intermediate data in the middle of CAD processing in the memory 52.
  • the main control unit 71 automatically restarts the interrupted CAD processing related to the Nth shooting to the CAD processing unit 70. .. At this time, the CAD processing unit 70 reads the intermediate data temporarily stored in the memory 52 from the memory 52. After the CAD processing related to the Nth imaging is completed, the main control unit 71 causes the CAD processing unit 70 to continuously execute the CAD processing related to the N + 1th imaging.
  • the main control unit 71 increases the rotation speed of the cooling fan 56 as compared with the case where the CAD process is not executed. As a result, the main control unit 71 raises the cooling level of the cooling fan 56 during the CAD process higher than usual.
  • the display control unit 69 displays a message box 90 indicating that the CAD processing is being executed on the display 32 as shown in FIG.
  • the display control unit 69 displays the CAD processing result display button 91 for displaying the result of the CAD processing on the display 32 as shown in FIG.
  • the display control unit 69 radiates the marker 92 surrounding the lesion candidate extracted by the CAD processing as a result of the CAD processing, as shown in FIG. It is displayed on the image 20.
  • the display control unit 69 displays a message box 93 indicating that the CAD processing is interrupted on the display 32 as shown in FIG.
  • the display of the radiographic image 20 and the result of CAD processing related to each radiography can be switched by selecting "order 1", "order 2", etc. on the right side of the radiological image 20. For example, when displaying the radiation image 20 related to the first imaging and the result of the CAD processing, “Order 1” related to the first imaging is selected as shown in FIG. 13 and the like. Then, when displaying the radiation image 20 related to the second imaging and the result of the CAD processing, "Order 2" related to the second imaging is selected.
  • the CPU 53 of the console 55 has a reception unit 65, an irradiation control unit 66, a cassette control unit 67, a display-related processing unit 68, a display control unit 69, and CAD processing, as shown in FIG. It functions as a unit 70 and a main control unit 71.
  • the operator OP Prior to the Nth shooting, the operator OP selects the shooting menu 75 corresponding to the shooting order via the display 32, and the reception unit 65 accepts the shooting menu 75. Then, the reception unit 65 reads out the irradiation condition 76 corresponding to the photographing menu 75 from the irradiation condition table 61. The read irradiation condition 76 is finely adjusted by the operator OP as necessary, and then set in the voltage generator 48 by the irradiation control unit 66.
  • the irradiation switch 34 is operated by the operator OP, and the warm-up instruction signal 77 and the irradiation start instruction signal 78 are received by the reception unit 65.
  • the radiation R is irradiated from the radiation tube 47 under the set irradiation conditions 76.
  • a storage operation is performed in response to the irradiation start synchronization signal 79, and a read operation is performed in response to the irradiation end synchronization signal 80.
  • the radiation image 20 is output from the electronic cassette 11.
  • FIG. 17 is a flowchart showing the modes shown in FIGS. 9 and 10.
  • the radiation image 20 related to the Nth imaging is output from the electronic cassette 11, and the image transmission notification signal 87 related to the Nth imaging is received by the image receiving unit 85 (step). YES in ST10), and subsequently, the radiation image 20 according to the Nth imaging is received by the image receiving unit 85 (step ST11).
  • the radiation image 20 related to the Nth imaging is output from the image receiving unit 85 to the image processing unit 86.
  • the image processing unit 86 performs various image processing such as offset correction processing, sensitivity correction processing, and defect pixel correction processing on the radiation image 20 related to the Nth imaging (step ST12).
  • the radiation image 20 related to the Nth imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST13 the display-related processing related to the Nth shooting is started at the timing when the image transmission notification signal 87 related to the Nth shooting is received by the image receiving unit 85. Then, at the timing when the radiation image 20 related to the Nth imaging after the image processing is output from the image processing unit 86, the display-related processing related to the Nth imaging is completed.
  • Step ST13 is an example of a "display-related processing step" according to the technique of the present disclosure.
  • the radiation image 20 according to the Nth imaging after image processing is displayed on the display 32 by the display control unit 69 (step ST14).
  • the operator OP can immediately confirm the appearance of the radiation image 20 obtained by the Nth imaging at the imaging site.
  • Step ST17 is an example of the "computer-aided diagnosis processing step" according to the technique of the present disclosure.
  • the cooling level of the cooling fan 56 is raised more than usual under the control of the main control unit 71.
  • a message box 90 is displayed by the display control unit 69 in order to notify the operator OP that the CAD process is being executed.
  • the result of the CAD processing is output from the CAD processing unit 70 to the display control unit 69.
  • the CAD processing result display button 91 is selected, the result of the CAD processing is displayed on the display 32 by the display control unit 69 as shown in FIG.
  • the N + 1th shooting is performed from the end of the display-related processing related to the Nth shooting by the display-related processing unit 68 until the set time elapses, and the image transmission notification signal 87 related to the N + 1th shooting is performed.
  • the image receiving unit 85 YES in step ST15
  • the start of the CAD process related to the Nth photographing is postponed, and the CAD process is prohibited.
  • the radiation image 20 related to the N + 1th imaging is received by the image receiving unit 85 (step ST18).
  • the radiation image 20 related to the N + 1th imaging is output from the image receiving unit 85 to the image processing unit 86.
  • Step ST18 is an example of a "priority processing step" according to the technique of the present disclosure.
  • image processing is performed on the radiation image 20 related to the N + 1th imaging (step ST19).
  • the radiation image 20 related to the N + 1th imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST20 the display-related processing related to the N + 1th shooting is started at the timing when the image transmission notification signal 87 related to the N + 1th shooting is received by the image receiving unit 85. Then, at the timing when the radiation image 20 related to the N + 1th imaging after the image processing is output from the image processing unit 86, the display-related processing related to the N + 1th imaging is completed.
  • Step ST20 is an example of the "display-related processing step" according to the technique of the present disclosure, like step ST13.
  • the radiation image 20 related to the N + 1th imaging after image processing is displayed on the display 32 by the display control unit 69 (step ST21).
  • Step ST22 When the set time has elapsed since the display-related processing related to the N + 1th shooting was completed in the display-related processing unit 68 (YES in step ST22), the CAD processing unit 70 has postponed the start in step ST18. CAD processing is executed on the radiographic image 20 related to the imaging (step ST23). In addition, the CAD process related to the N + 1th imaging is subsequently executed (step ST24). Steps ST23 and ST24 are examples of the "computer-aided diagnosis processing step" according to the technique of the present disclosure, similarly to step ST17.
  • FIG. 18 is a flowchart showing the mode shown in FIG.
  • the CAD processing unit 70 executes the CAD processing on the radiation image 20 related to the Nth imaging after the image processing (step ST30).
  • Step ST30 is an example of the "computer-aided diagnosis processing step" according to the technique of the present disclosure, like step ST17, step ST23, and step ST24.
  • Step ST32 is an example of a "priority processing step" according to the technique of the present disclosure.
  • the display control unit 69 displays the message box 93 as shown in FIG.
  • image processing is performed on the radiation image 20 related to the N + 1th imaging (step ST33).
  • the radiation image 20 related to the N + 1th imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST34 the display-related processing related to the N + 1th shooting is started at the timing when the image transmission notification signal 87 related to the N + 1th shooting is received by the image receiving unit 85. Then, at the timing when the radiation image 20 related to the N + 1th imaging after the image processing is output from the image processing unit 86, the display-related processing related to the N + 1th imaging is completed.
  • Step ST34 like step ST13 and step ST20, is an example of a "display-related processing step" according to the technique of the present disclosure.
  • the radiation image 20 related to the N + 1th imaging after image processing is displayed on the display 32 by the display control unit 69 (step ST35).
  • Step ST37 When the set time has elapsed since the display-related processing related to the N + 1th shooting was completed by the display-related processing unit 68 (YES in step ST36), the CAD processing related to the Nth shooting interrupted by the CAD processing unit 70 Is automatically restarted (step ST37). After the CAD process related to the Nth imaging is completed, the CAD process related to the N + 1th imaging is subsequently executed (step ST38). Steps ST37 and ST38, like steps ST17, ST23, ST24, and ST30, are examples of "computer-aided diagnostic processing steps" according to the techniques of the present disclosure.
  • the CPU 53 of the console 55 includes a display-related processing unit 68, a CAD processing unit 70, and a main control unit 71.
  • the display-related processing unit 68 executes display-related processing for displaying the radiographic image 20 obtained by radiography at the imaging site.
  • the display-related processing includes a reception process of receiving the radiation image 20 from the electronic cassette 11 and an image process of processing the received radiation image 20 for display.
  • the CAD processing unit 70 executes CAD processing on the radiation image 20 after image processing.
  • the main control unit 71 executes a priority process that prioritizes the display-related process over the CAD process.
  • the main control unit 71 prohibits the execution of CAD processing as priority processing while executing display-related processing. Specifically, the main control unit 71 performs the N + 1th operation between the end of the display-related processing related to the Nth imaging and the subsequent automatic start of the CAD processing related to the Nth imaging. When the display-related processing related to shooting is started, the CAD processing related to the Nth shooting is not started. Further, as a priority process, the main control unit 71 interrupts the CAD process related to the Nth shooting, and starts the display-related process related to the N + 1th shooting after the Nth shooting. Therefore, it is possible to eliminate the possibility that the display-related processing is delayed by the CAD processing and the display of the radiation image 20 is hindered.
  • the CAD processing unit 70 automatically restarts the interrupted CAD processing related to the Nth shooting after finishing the display-related processing related to the N + 1th shooting. Therefore, even when the CAD processing related to the Nth shooting is interrupted, the result of the CAD processing related to the Nth shooting can be obtained without bothering the operator OP.
  • the display control unit 69 notifies the operator OP that the CAD processing related to the Nth shooting has been interrupted by displaying the message box 93. Therefore, the operator OP can surely know that the CAD process related to the Nth photographing has been interrupted.
  • One CPU 53 is a processor that executes display-related processing and CAD processing. Therefore, there is a high possibility that the display-related processing will be delayed due to the CAD processing. Therefore, the effect of the priority processing can be further exerted.
  • the display-related processing unit 68 starts the display-related processing at the timing when the image transmission notification signal 87 is received by the image receiving unit 85, that is, at the start timing of the reception processing. Therefore, the CAD process can be executed while the photographing menu 75 is received and the irradiation condition 76 is set, or the irradiation switch 34 is operated to irradiate the radiation R.
  • the main control unit 71 raises the cooling level of the cooling fan 56 more than usual while executing the CAD process. Therefore, the CPU 53, which is generating heat due to the increased processing load due to the CAD processing, can be efficiently cooled. It is possible to suppress a decrease in the processing capacity of the CPU 53 due to heat generation.
  • the console 55 has a radiation generating unit 15 that emits radiation R, and is mounted on a mobile radiation generating device 10 that is wirelessly driven by a battery 58.
  • the console 55 mounted on the mobile radiation generator 10 has a limitation on the resources of a processor such as the CPU 53 as compared with the console connected to the radiation generator installed in the photographing room. Therefore, there is a higher possibility that the display-related processing will be delayed due to the CAD processing. Therefore, by applying the technique of the present disclosure to the console 55 mounted on the mobile radiation generator 10, the effect of the priority treatment can be further exerted.
  • the CAD process is automatically started, but the present invention is not limited to this.
  • the CAD process may be executed when the operator OP gives an instruction to execute the CAD process.
  • the display control unit 69 displays the CAD process execution button 100 for inputting the CAD process execution instruction on the display 32.
  • the operator OP selects the CAD processing execution button 100 when he / she wants to execute the CAD processing on the displayed radiation image 20.
  • an execution instruction signal 101 instructing the execution of the CAD processing is emitted from the display 32 and accepted by the reception unit 65.
  • the CAD processing unit 70 executes the CAD processing.
  • the CAD process related to the Nth shooting is executed by the execution instruction signal 101, the N + 1th shooting is performed after the CAD processing related to the Nth shooting is completed, and the display related to the N + 1 shooting is performed.
  • the main control unit 71 does not execute the priority processing.
  • FIG. 21 shows a case where the N + 1th imaging is performed and the display-related processing related to the N + 1th imaging is started before the CAD processing related to the Nth imaging is executed by the execution instruction signal 101. ..
  • the main control unit 71 performs the CAD processing related to the Nth shooting.
  • the execution instruction signal 101 of is not accepted by the reception unit 65. That is, as in the case of FIG. 10, the main control unit 71 prohibits the execution of the CAD process as the priority process while the display-related process is being executed.
  • the CAD processing execution button 100 may be hidden or grayed out, and the operator OP may select the CAD processing execution button 100. You can adopt a method that makes it impossible.
  • the CAD process execution button 100 is displayed in a form that can be selected as it is, a method can be adopted in which the reception unit 65 accepts the execution instruction signal 101 but ignores it. In the latter method, when the CAD processing execution button 100 is selected, it is preferable to pop up a message such as "The execution of CAD processing is not accepted.”
  • the main control unit 71 sends the CAD processing related to the N + 1th shooting to the CAD processing unit 70. Let it run.
  • FIG. 22 shows a case where the N + 1th imaging is performed while the CAD process related to the Nth imaging is being executed by the execution instruction signal 101.
  • the main control unit 71 since the CAD process related to the Nth shooting and the display-related processing related to the N + 1th shooting conflict with each other, the main control unit 71 relates to the Nth shooting as a priority process.
  • the CAD process is interrupted and the display-related process related to the N + 1th shooting is started.
  • the main control unit 71 When the execution instruction signal 101 is received by the reception unit 65 after the display-related processing related to the N + 1th shooting is completed, the main control unit 71 performs the interrupted Nth shooting as in the case of FIG.
  • the CAD processing is automatically restarted by the CAD processing unit 70.
  • the main control unit 71 causes the CAD processing unit 70 to continuously execute the CAD processing related to the N + 1th imaging.
  • the reception unit 65 receives the CAD processing execution instruction signal 101 by the operator OP, and executes the CAD processing. Therefore, whether or not to execute the CAD processing can be left to the selection of the operator OP, and the CAD processing is also executed for the radiation image 20 that does not require the CAD processing, such as the radiation image 20 in which imaging has failed. It is possible to prevent it from happening. Compared with the case where the CAD process is automatically executed, it is possible to reduce the number of situations where the display-related process and the CAD process conflict with each other.
  • the mode in which the CAD process is automatically started and the mode in which the CAD process is executed when the operator OP gives an instruction to execute the CAD process may be switchable.
  • the interrupted CAD processing is automatically restarted, but the present invention is not limited to this.
  • the operator OP may accept a selection instruction as to whether or not to restart the interrupted CAD process.
  • the display control unit 69 displays the dialog box 110 on the display 32 after finishing the display-related processing related to the N + 1th shooting.
  • a yes button 111 for inputting a selection instruction to restart the CAD processing related to the interrupted Nth shooting and a selection instruction not to restart the CAD processing related to the interrupted Nth shooting are displayed.
  • No button 112 for input is arranged. The operator OP selects the Yes button 111 if he / she wants to restart the CAD process related to the interrupted Nth shooting, and selects the No button 112 if he / she does not want to restart the CAD process.
  • the first selection instruction signal 113 indicating the selection instruction to restart the CAD processing related to the interrupted Nth shooting is output from the display 32 and accepted by the reception unit 65.
  • the CAD processing unit 70 restarts the CAD processing related to the Nth photographing.
  • a second selection instruction signal 114 indicating a selection instruction not to restart the CAD processing related to the interrupted Nth shooting is output from the display 32, and the reception unit 65 Accepted at. In this case, the CAD process related to the Nth photographing is not restarted.
  • FIGS. 24 and 25 show the case where the N + 1th imaging is performed while the CAD process related to the Nth imaging is being executed.
  • the main control unit 71 interrupts the CAD processing related to the Nth shooting and starts the display-related processing related to the N + 1th shooting as the priority processing.
  • FIG. 24 shows a case where the yes button 111 of the dialog box 110 is selected by the operator OP after the display-related processing related to the N + 1th shooting is completed, and the first selection instruction signal 113 is received by the reception unit 65. show.
  • the main control unit 71 causes the CAD processing unit 70 to restart the CAD processing related to the interrupted Nth imaging. After the CAD processing related to the Nth imaging is completed, the main control unit 71 causes the CAD processing unit 70 to continuously execute the CAD processing related to the N + 1th imaging.
  • the main control unit 71 causes the CAD processing unit 70 to execute the CAD processing related to the N + 1th imaging without restarting the CAD processing related to the interrupted Nth imaging to the CAD processing unit 70.
  • the reception unit 65 selects whether or not to restart the interrupted CAD processing related to the Nth shooting by the operator OP. Accept instructions. Then, when the first selection instruction signal 113 indicating the selection instruction to restart is received, the CAD processing unit 70 restarts the CAD processing related to the interrupted Nth photographing. On the other hand, when the second selection instruction signal 114 indicating the selection instruction not to restart is received, the CAD processing unit 70 does not restart the CAD processing related to the interrupted Nth photographing.
  • the second embodiment it is possible to leave it to the operator OP to decide whether or not to restart the interrupted CAD processing, and radiation such as the radiation image 20 in which imaging has failed, which does not require CAD processing. It is possible to prevent the CAD processing from being restarted for the image 20 as well. Compared with the case where the CAD process is automatically restarted, it is possible to reduce the number of situations where the display-related process and the CAD process conflict with each other.
  • a mode in which the interrupted CAD process is automatically restarted and a mode in which a selection instruction by the operator OP as to whether or not to restart the interrupted CAD process is accepted may be switchable.
  • the N + 1th shooting is performed, and the display-related processing related to the N + 1th shooting is performed.
  • the CAD processing unit 70 is allowed to execute the CAD process related to the Nth imaging whose start is postponed.
  • the selection instruction by the operator OP may be accepted.
  • the CPU 53 of the console 55 of the fourth embodiment specifies an imaging portion in addition to the respective units 65 to 71 shown in the first embodiment (only the CAD processing unit 70 and the main control unit 71 are shown in FIG. 26). It functions as a unit 120.
  • the imaging site specifying unit 120 identifies the imaging site of the Nth imaging from the image of the subject H reflected in the radiation image 20 related to the Nth imaging by using a well-known image recognition technique.
  • the imaging site specifying unit 120 identifies the imaging site of the N + 1th imaging from the image of the subject H reflected in the radiation image 20 related to the N + 1th imaging by using a well-known image recognition technique.
  • the imaging site specifying unit 120 outputs the imaging site identification result 121 to the main control unit 71.
  • the main control unit 71 controls the operation of the CAD processing unit 70 based on the specific result 121.
  • FIG. 27 shows a case where the specific result 121 is such that the imaging portion of the Nth imaging and the imaging region of the N + 1th imaging are not the same.
  • the main control unit 71 assumes that the N + 1th shooting is not a re-shooting of the Nth shooting, and the restart instruction signal 122 (for the CAD processing unit 70 to restart the CAD processing related to the interrupted Nth shooting. (See FIG. 29) is output to the CAD processing unit 70.
  • the CAD processing unit 70 Upon receiving the restart instruction signal 122, the CAD processing unit 70 restarts the CAD processing related to the interrupted Nth imaging.
  • FIG. 28 shows a case where the specific result 121 is the same as the imaging portion of the Nth imaging and the imaging region of the N + 1th imaging.
  • the main control unit 71 does not output the restart instruction signal 122 to the CAD processing unit 70, assuming that the N + 1th shooting is a re-shooting of the Nth shooting. Since the restart instruction signal 122 is not input, the CAD processing unit 70 does not restart the CAD processing related to the interrupted Nth photographing.
  • FIGS. 29 and 30 show the case where the N + 1th imaging is performed while the CAD process related to the Nth imaging is being executed.
  • the main control unit 71 interrupts the CAD processing related to the Nth shooting and starts the display-related processing related to the N + 1th shooting as the priority processing.
  • FIG. 29 shows the case where the identification result 121 by the imaging site specifying unit 120 is the content shown in FIG. 27 that the imaging region of the Nth imaging and the imaging region of the N + 1th imaging are not the same.
  • the main control unit 71 outputs the restart instruction signal 122 to the CAD processing unit 70 after the display-related processing related to the N + 1th shooting is completed.
  • the main control unit 71 causes the CAD processing unit 70 to restart the CAD processing related to the interrupted Nth imaging.
  • the main control unit 71 causes the CAD processing unit 70 to continuously execute the CAD processing related to the N + 1th imaging.
  • FIG. 30 shows the case where the identification result 121 by the imaging site specifying unit 120 is the content shown in FIG. 28 that the imaging region of the Nth imaging and the imaging region of the N + 1th imaging are the same. show.
  • the main control unit 71 does not output the restart instruction signal 122 to the CAD processing unit 70 after the display-related processing related to the N + 1th shooting is completed.
  • the main control unit 71 causes the CAD processing unit 70 to execute the CAD processing related to the N + 1th imaging without restarting the CAD processing related to the interrupted Nth imaging to the CAD processing unit 70.
  • the CAD processing unit 70 restarts the CAD processing related to the interrupted Nth shooting, and the CAD processing unit 70 restarts the interrupted N + 1 shooting. If the shooting is a re-shooting of the Nth shooting, the CAD processing related to the interrupted Nth shooting is not restarted.
  • the fact that the N + 1th shooting is a re-shooting of the Nth shooting means that the shooting of the Nth shooting has failed. Therefore, it is possible to prevent the CAD processing from being restarted even for the radiation image 20 in which the imaging has failed, which does not require the CAD processing.
  • the operator OP needs to select the No button 112, but in the fourth embodiment, it is not necessary to do so. Therefore, it is not necessary for the operator OP to take time and effort.
  • the CAD processing unit 70 determines that the N + 1th imaging is not a re-imaging of the Nth imaging, and interrupts the Nth imaging. If the CAD processing is restarted and the imaging site is the same as the Nth imaging, the CAD processing related to the interrupted Nth imaging is not restarted, assuming that the N + 1th imaging is a re-imaging of the Nth imaging. .. Therefore, it is possible to accurately and easily determine whether or not the N + 1th shooting is a re-shooting of the Nth shooting.
  • the N + 1th imaging is a re-imaging of the Nth imaging based on whether or not the subject H is the same as the Nth imaging. Specifically, when at least one of the imaging portion and the subject H is not the same, it is assumed that the N + 1th imaging is not a re-imaging of the Nth imaging, and the CAD processing related to the interrupted Nth imaging is restarted. .. On the other hand, when both the imaging portion and the subject H are the same, the CAD processing related to the interrupted Nth imaging is not restarted, assuming that the N + 1th imaging is a re-imaging of the Nth imaging.
  • the CAD processing related to the Nth imaging is interrupted as a priority process, and the N + 1th imaging is performed.
  • the display-related processing related to the above has been started, but the present invention is not limited to this.
  • a priority process a part of the resources allocated to the CAD process related to the Nth shooting is used without interrupting the CAD process related to the Nth shooting.
  • the resources allocated to the display-related processing related to the N + 1th shooting and to the display-related processing related to the N + 1th shooting may be larger than the CAD processing related to the Nth shooting.
  • the console CPU 125 shown in FIG. 31 has four cores 126A, 126B, 126C, and 126D. Each core 126A-126D has one thread (not shown). That is, the CPU 125 is a multi-core single-thread CPU. Cores 126A-126D are examples of "resources" according to the techniques of the present disclosure.
  • the main control unit 71 When executing the CAD processing related to the Nth shooting, the main control unit 71 assigns the functions of the CAD processing unit 70 to all of the four cores 126A to 126D, as shown on the left side of the arrow. On the other hand, when the N + 1th shooting is performed while the CAD processing related to the Nth shooting is being executed, the main control unit 71 is assigned to the CAD processing related to the Nth shooting as shown on the right side of the arrow.
  • the functions of the display-related processing unit 68 are assigned to the three cores 126B to 126D out of the four cores 126A to 126D, and the display-related processing related to the N + 1th shooting is executed. With respect to the core 126A, the function of the CAD processing unit 70 is continuously assigned, and the CAD processing related to the Nth photographing is executed.
  • the console CPU 130 shown in FIG. 32 has one core 131.
  • the core 131 has four threads 132A, 132B, 132C, and 132D. That is, the CPU 130 is a single-core multithreaded CPU. Threads 132A-132D are examples of "resources" according to the techniques of the present disclosure.
  • the main control unit 71 When executing the CAD processing related to the Nth shooting, the main control unit 71 assigns the functions of the CAD processing unit 70 to all four threads 132A to 132D, as shown on the upper side of the arrow.
  • the main control unit 71 is assigned to the CAD processing related to the Nth shooting as shown in the lower side of the arrow.
  • the function of the display-related processing unit 68 is assigned to three threads 132B to 132D out of the four threads 132A to 132D, and the display-related processing related to the N + 1th shooting is executed.
  • thread 132A the function of the CAD processing unit 70 is continuously assigned, and the CAD processing related to the Nth photographing is executed.
  • the main control unit 71 allocates a part of the resources allocated to the CAD processing related to the Nth shooting to the display-related processing related to the N + 1th shooting as the priority processing.
  • the resources allocated to the display-related processing related to the N + 1th shooting are increased as compared with the CAD processing related to the Nth shooting. Therefore, the CAD processing can be continuously executed while reducing the possibility that the display-related processing is delayed due to the CAD processing.
  • FIG. 31 illustrates the multi-core single-thread CPU 125
  • FIG. 32 illustrates the single-core multi-thread CPU 130
  • a multi-core multi-thread CPU having a plurality of cores and each core having a plurality of threads may be used.
  • the console of the sixth embodiment has a CPU 135 and a GPU (Graphics Processing Unit) 136.
  • the CPU 135 functions as a reception unit 65, an irradiation control unit 66, a cassette control unit 67, a display-related processing unit 68, and a main control unit 71 (only the display-related processing unit 68 and the main control unit 71 are shown in FIG. 33).
  • the GPU 136 functions as a display control unit 69 and a CAD processing unit 70 (only the CAD processing unit 70 is shown in FIG. 33).
  • the CPU 135 is an example of the "first subprocessor" according to the technique of the present disclosure.
  • GPU 136 is an example of a "second subprocessor" according to the technique of the present disclosure.
  • the sixth embodiment has two sub-processors, a CPU 135 which is a first sub-processor which executes display-related processing and a GPU 136 which is a second sub-processor which executes CAD processing. Therefore, it is possible to reduce the possibility that the display-related processing is delayed due to the CAD processing.
  • the console 55 that functions as the display-related processing unit 68, the CAD processing unit 70, the main control unit 71, etc. by executing the operation program 60 has been illustrated, but the present invention is not limited to this.
  • the console 140 which functions as the display-related processing unit 68, the main control unit 71, etc., but does not function as the CAD processing unit 70, it can be retrofitted.
  • the function of the CAD processing unit 70 may be added.
  • the CAD processing function expansion operation program 141 is an example of the “radiation imaging system console operation program” according to the technique of the present disclosure.
  • the console 55 built in the mobile radiation generator 10 has been illustrated, but the present invention is not limited to this.
  • an operation program 60 is installed in a notebook personal computer 145 separate from the mobile radiation generator 10, and the notebook personal computer 145 is used as a "radiography system" according to the technique of the present disclosure. It may be used as a "computer”.
  • the tablet terminal may be used as the "console of the radiography system” according to the technique of the present disclosure.
  • the operation program 141 for CAD processing function expansion is applied as in the example shown in FIG. By installing it, the function of the CAD processing unit 70 may be added later.
  • a part of the CAD processing may be outsourced to an external device connected to the console via a network or the like.
  • the timing at which the image transmission notification signal 87 is received by the image receiving unit 85 is defined as the start timing of the display-related processing, but the present invention is not limited to this.
  • the timing at which the operator OP selects the shooting menu 75 related to the N + 1th shooting may be set as the start timing of the display-related processing.
  • the timing at which the irradiation start instruction signal 78 is received by the reception unit 65 may be set as the start timing of the display-related processing.
  • the timing at which the irradiation start synchronization signal 79 is transmitted from the cassette control unit 67 to the electronic cassette 11 may be set as the start timing of the display-related processing.
  • the first embodiment is applied to the aspect shown in FIG. 37, it becomes as shown in FIGS. 38 to 41. In the following, the contents described in the first embodiment will be omitted as appropriate.
  • the N + 1th imaging is performed from the end of the display-related processing related to the Nth imaging to the start of the CAD processing related to the Nth imaging, and the cassette control unit 67
  • the irradiation start synchronization signal 79 is transmitted to the electronic cassette 11 and the display-related processing related to the N + 1th imaging is started is shown.
  • the main control unit 71 does not start the CAD process related to the Nth shooting.
  • FIG. 39 shows a case where the irradiation start synchronization signal 79 is transmitted from the cassette control unit 67 to the electronic cassette 11 and the N + 1th imaging is performed while the CAD process related to the Nth imaging is being executed.
  • the main control unit 71 interrupts the CAD processing related to the Nth shooting as a priority process.
  • the display-related processing related to the N + 1th shooting is started.
  • FIG. 40 is a flowchart showing the mode shown in FIG. 38.
  • the irradiation start synchronization signal 79 related to the Nth imaging is transmitted from the cassette control unit 67 to the electronic cassette 11 (YES in step ST50, step ST51)
  • the irradiation time set in the irradiation condition 76 elapses
  • the irradiation end synchronization signal 80 related to the Nth imaging is transmitted from the cassette control unit 67 to the electronic cassette 11.
  • the image transmission notification signal 87 and the radiation image 20 related to the Nth imaging are received by the image receiving unit 85 (step ST52).
  • the radiation image 20 related to the Nth imaging is output from the image receiving unit 85 to the image processing unit 86.
  • various image processing is performed on the radiation image 20 related to the Nth imaging (step ST12).
  • the radiation image 20 related to the Nth imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST53 the display-related processing related to the Nth imaging is started at the timing when the irradiation start synchronization signal 79 related to the Nth imaging is transmitted from the cassette control unit 67. Then, at the timing when the radiation image 20 related to the Nth imaging after the image processing is output from the image processing unit 86, the display-related processing related to the Nth imaging is completed.
  • Step ST53 is an example of a "display-related processing step" according to the technique of the present disclosure.
  • the N + 1th shooting is performed, and the irradiation start synchronization signal 79 related to the N + 1 shooting is cassetteed.
  • the control unit 67 YES in step ST54
  • the start of the CAD process related to the Nth imaging is postponed, and the CAD process is prohibited (step ST55).
  • the irradiation start synchronization signal 79 related to the N + 1th imaging is transmitted from the cassette control unit 67 to the electronic cassette 11 (step ST56).
  • Step ST57 is an example of a "priority processing step" according to the technique of the present disclosure.
  • image processing is performed on the radiation image 20 related to the N + 1th imaging (step ST19).
  • the radiation image 20 related to the N + 1th imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST58 the display-related processing related to the N + 1th imaging is started at the timing when the irradiation start synchronization signal 79 related to the N + 1th imaging is transmitted from the cassette control unit 67. Then, at the timing when the radiation image 20 related to the N + 1th imaging after the image processing is output from the image processing unit 86, the display-related processing related to the N + 1th imaging is completed.
  • Step ST58 like step ST53, is an example of a "display-related processing step" according to the technique of the present disclosure.
  • FIG. 41 is a flowchart showing the mode shown in FIG. 39.
  • the CAD process related to the Nth imaging shown in step ST30 is being executed, the N + 1th imaging is performed, and the irradiation start synchronization signal 79 related to the N + 1th imaging is transmitted from the cassette control unit 67 ( YES in step ST60), the CAD process related to the Nth imaging is interrupted (step ST61). Then, the irradiation start synchronization signal 79 related to the N + 1th imaging is transmitted from the cassette control unit 67 to the electronic cassette 11 (step ST62).
  • Step ST61 is an example of a "priority processing step" according to the technique of the present disclosure, like step ST55.
  • image processing is performed on the radiation image 20 related to the N + 1th imaging (step ST33).
  • the radiation image 20 related to the N + 1th imaging after image processing is output from the image processing unit 86 to the display control unit 69 and the CAD processing unit 70.
  • step ST64 the display-related processing related to the N + 1th imaging is started at the timing when the irradiation start synchronization signal 79 related to the N + 1th imaging is transmitted from the cassette control unit 67. Then, at the timing when the radiation image 20 related to the N + 1th imaging after the image processing is output from the image processing unit 86, the display-related processing related to the N + 1th imaging is completed.
  • Step ST64 like steps ST53 and ST58, is an example of a "display-related processing step" according to the technique of the present disclosure.
  • the display-related processing is started at the timing of transmitting the irradiation start synchronization signal 79 notifying the electronic cassette 11 of the start of irradiation of the radiation R. Therefore, it is possible to reliably prevent the transmission timing of the irradiation start synchronization signal 79 and the irradiation end synchronization signal 80 from being delayed due to the CAD processing having a relatively large processing load.
  • the end timing of the display-related processing is not limited to the timing when the illustrated radiation image 20 is output from the image processing unit 86.
  • the timing at which the radiation image 20 is displayed on the display 32 by the display control unit 69 may be set as the end timing of the display-related processing.
  • the Nth imaging is an example of the "first imaging” according to the technique of the present disclosure
  • the N + 1th imaging is an example of the "second imaging” according to the technique of the present disclosure.
  • One or more radiographic imaging may be inserted between the "first imaging" and the "second imaging”.
  • the cooling fan 56 may be turned off, and the cooling fan 56 may be rotated during the CAD process to raise the cooling level during the CAD process. Further, the cooling level of the cooling fan 56 may be continuously increased until a predetermined time elapses after the end of the CAD process.
  • the cooling mechanism is not limited to the illustrated cooling fan 56, and for example, a Perche element may be used. Moreover, you may use the cooling mechanism of liquid cooling instead of air cooling.
  • the image processing unit 86 is executing the image processing related to the Nth imaging and the image transmission notification signal 87 of the radiation image 20 related to the N + 1th imaging is received by the image receiving unit 85, the Nth imaging is performed.
  • the image processing related to the above may be interrupted, and the reception processing of the radiation image 20 related to the N + 1th imaging may be prioritized.
  • the electronic cassette 11 that performs the storage operation in response to the irradiation start synchronization signal 79 and the read-out operation in response to the irradiation end synchronization signal 80 has been exemplified, but is not limited to this.
  • An electronic cassette having a function of detecting the start and end of irradiation of radiation R by itself may be used.
  • the device is not limited to the electronic cassette, and may be a radiographic image detection device installed on the imaging table.
  • the console 55 and the like mounted on the mobile radiation generator 10 have been exemplified, but the present invention is not limited to this.
  • the technique of the present disclosure may be applied to a console mounted on a mammography apparatus that radiographs the breast of subject H.
  • a reception unit 65 for example, a reception unit 65, an irradiation control unit 66, a cassette control unit 67, a display-related processing unit 68 (image receiving unit 85 and an image processing unit 86), a display control unit 69, a CAD processing unit 70, and a main unit.
  • the processing unit Processesing Unit
  • Various processors include CPUs 53, 125, 130, and 135, which are general-purpose processors that execute software (operation program 60 and operation program 141 for expanding CAD processing function) and function as various processing units, and GPU 136.
  • a programmable logic device which is a processor whose circuit configuration can be changed after manufacturing an FPGA (Field Programgate Gate Array), and / or an ASIC (Application Specific Integrated Circuit) identification process, etc.
  • PLD programmable logic device
  • FPGA Field Programgate Gate Array
  • ASIC Application Specific Integrated Circuit
  • One processor may be composed of one of these various processors, or a combination of two or more processors of the same type or different types (for example, a combination of a plurality of FPGAs and / or a CPU and a CPU). It may be configured in combination with FPGA). Further, a plurality of processing units may be configured by one processor.
  • one processor is configured by a combination of one or more CPUs and software, as represented by a computer such as a client and a server.
  • a processor functions as a plurality of processing units.
  • SoC system on chip
  • a processor that realizes the functions of the entire system including a plurality of processing units with one IC (Integrated Circuit) chip is used.
  • the various processing units are configured by using one or more of the above-mentioned various processors as a hardware structure.
  • circuitry in which circuit elements such as semiconductor elements are combined can be used.
  • the technique of the present disclosure can be appropriately combined with the various embodiments described above and / or various modifications. Further, not limited to the above embodiment, it goes without saying that various configurations can be adopted as long as they do not deviate from the gist. Further, the technique of the present disclosure extends to a storage medium for storing the program non-temporarily in addition to the program.
  • a and / or B is synonymous with "at least one of A and B". That is, “A and / or B” means that it may be A alone, B alone, or a combination of A and B. Further, in the present specification, when three or more matters are connected and expressed by "and / or", the same concept as “A and / or B" is applied.

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PCT/JP2020/045330 2020-03-10 2020-12-04 放射線撮影システムのコンソール、放射線撮影システムのコンソールの作動方法、放射線撮影システムのコンソールの作動プログラム Ceased WO2021181769A1 (ja)

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CN202080097055.2A CN115135247B (zh) 2020-03-10 2020-12-04 放射线摄影系统的控制台、放射线摄影系统的控制台的工作方法、计算机可读存储介质
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