WO2006033220A1 - 放射線撮影システム及びその管理プログラム - Google Patents
放射線撮影システム及びその管理プログラム Download PDFInfo
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- WO2006033220A1 WO2006033220A1 PCT/JP2005/015772 JP2005015772W WO2006033220A1 WO 2006033220 A1 WO2006033220 A1 WO 2006033220A1 JP 2005015772 W JP2005015772 W JP 2005015772W WO 2006033220 A1 WO2006033220 A1 WO 2006033220A1
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- 238000003384 imaging method Methods 0.000 title claims abstract description 119
- 238000001514 detection method Methods 0.000 claims abstract description 174
- 238000003860 storage Methods 0.000 claims abstract description 45
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- 238000004891 communication Methods 0.000 claims description 73
- 238000012545 processing Methods 0.000 claims description 33
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Classifications
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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
-
- 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
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
-
- 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
- A61B6/56—Details of data transmission or power supply, e.g. use of slip rings
- A61B6/563—Details of data transmission or power supply, e.g. use of slip rings involving image data transmission via a network
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H30/00—ICT specially adapted for the handling or processing of medical images
- G16H30/20—ICT specially adapted for the handling or processing of medical images for handling medical images, e.g. DICOM, HL7 or PACS
-
- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
- G16H40/00—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices
- G16H40/40—ICT specially adapted for the management or administration of healthcare resources or facilities; ICT specially adapted for the management or operation of medical equipment or devices for the management of medical equipment or devices, e.g. scheduling maintenance or upgrades
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2560/00—Constructional details of operational features of apparatus; Accessories for medical measuring apparatus
- A61B2560/02—Operational features
- A61B2560/0266—Operational features for monitoring or limiting apparatus function
- A61B2560/0271—Operational features for monitoring or limiting apparatus function using a remote monitoring unit
Definitions
- the present invention relates to a radiation imaging system and a management program thereof.
- an FPD disposed in the imaging room is connected to a PC for controlling the imaging operation via a predetermined communication line (A device that is configured to be used by being connected to a predetermined photographing operation control device (controller) such as a personal computer is known (see, for example, Patent Document 1).
- a force set type FPD in which the FPD is accommodated in a force set has been developed for the purpose of improving the transportability and handling of the FPD (see, for example, Patent Document 2).
- a system configuration in which a force set type FPD and an imaging operation control device are configured to be able to communicate various types of information such as radiation image information by a wireless method (for example, see Patent Document 3).
- Patent Document 4 describes that an ID for identifying an FPD is assigned to each FPD, and the image data obtained by the FPD is assigned the FPD ID data and transmitted to the PC. It is not described that the FPD ID is managed by the controller that controls the FPD that is separate from the FPD.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2003-199736
- Patent Document 2 JP-A-6-342099
- Patent Document 3 Japanese Patent Laid-Open No. 2003-210444
- Patent Document 4 US Patent No. 5844961
- Patent Document 5 US Patent No. 6795572
- An object of the present invention is to provide a radiation imaging system in which a radiation image detection apparatus can be easily managed by an imaging operation control device at a destination even if the radiation image detection apparatus is moved. And providing a management program.
- a plurality of radiation image detection devices for acquiring radiation image information of the subject by radiography of the subject;
- An imaging operation control device for controlling an imaging operation of at least one of the plurality of radiological image detection devices
- a management device that manages the plurality of radiation image detection devices
- Each of the plurality of radiation image detection devices is provided with an individual information storage unit that stores individual information of the radiation image detection device, and the individual information storage unit includes at least each of the plurality of radiation image detection devices.
- Unique identification information is stored, and the management device recognizes unique identification information to each of the plurality of radiation image detection devices, and based on the recognized identification information! /,
- the plurality of radiations It is characterized by managing each of the image detection devices!
- the invention according to claim 2 is the radiation imaging system according to claim 1,
- the radiation management system wherein the management device manages the plurality of radiation image detection devices based on the identification information taken in via the communication line.
- the invention of claim 3 is the radiographic system according to claim 1 or 2,
- a plurality of the photographing operation control devices are provided, and one photographing operation control device of the plurality of photographing operation control devices also serves as the management device.
- the invention of claim 4 is the radiographic system according to any one of claims 1 to 3, wherein
- the imaging operation control device is an image processing device that performs image processing on the radiation image information obtained from the radiation image detection device.
- a management program for a radiation imaging system according to the invention of claim 5 is provided in a computer included in a management apparatus that manages a plurality of radiation image detection apparatuses that acquire radiation image information of the subject by radiation imaging of the subject. Recognizing identification information unique to each of the plurality of radiation image detection devices;
- the management device manages each of the plurality of radiation image detection devices based on the identification information unique to the radiation image detection device, the plurality of radiation image detection devices can be managed in an integrated manner. . This improves the overall efficiency of the radiography workflow.
- centralized management of multiple radiological image detection devices makes it easy to collect information on each radiographic image detection device, resulting in efficient prior status checks and problems. Therefore, it is possible to efficiently identify the radiological image detection apparatus that has caused the problem.
- a communication line connecting the at least one radiation image detection apparatus, the imaging operation control apparatus, and the management apparatus is provided, and the management apparatus stores the identification information captured via the communication line. Based on this, it is preferable to manage the plurality of radiation image detection devices.
- the management apparatus manages a plurality of radiation image detection apparatuses based on the identification information captured via the communication line, so that even if the radiation image detection apparatus moves on the communication line, the management apparatus Acquire identification information via the communication line and confirm it. As a result, even if the radiation image detection apparatus moves, it can be easily managed.
- one photographing operation control device also serves as the management device.
- one shooting operation control device also serves as the management device, so the system configuration can be simplified compared to the case where the management device is installed alone. wear.
- the imaging operation control device is preferably an image processing device that performs image processing on the radiation image information obtained by the radiation image detection device and input via the communication line. Better ,.
- the imaging operation control device is an image processing device
- it is possible to perform image processing of radiation image information without connecting the image processing device to the communication line separately, and the system configuration can be simplified. it can.
- FIG. 1 is a diagram showing a schematic configuration of a radiation imaging system exemplified as an embodiment to which the present invention is applied.
- FIG. 2 is an explanatory diagram showing a main configuration of a radiographic imaging apparatus that constitutes the radiographic system of FIG. 1.
- FIG. 3 is a block diagram showing a main configuration of a radiological image detection apparatus constituting the radiographic system of FIG. 1.
- FIG. 4 is a block diagram showing a main configuration of a console that constitutes the radiation imaging system of FIG. 1.
- FIG. 5 is a block diagram showing a main configuration of a server constituting the radiation imaging system of FIG. 1.
- FIG. 6 is a flowchart showing the operation of the radiological image detection apparatus of FIG.
- FIG. 7 is a flowchart showing the operation of the console 3 of FIG.
- FIG. 8 is a timing chart showing an example of an operation related to imaging processing by the radiographic system of FIG. 1.
- FIG. 1 is a diagram showing a schematic configuration of an embodiment of a radiation image detection system to which a radiation image detector according to the present invention is applied.
- FIG. 1 is a diagram showing a schematic configuration of a radiation imaging system exemplified as an embodiment to which the present invention is applied.
- the radiation imaging system 100 is configured across, for example, three imaging rooms, a first imaging room Rl, a second imaging room R2, and a third imaging room R3.
- a radiographic imaging apparatus 1 that irradiates the subject with radiation such as X-rays when radiographing the subject, and Control of imaging operations, radiation image display, and radiation of a plurality of radiological image detection devices 2 for acquiring radiographic images of a subject, and radiological image detection devices 2 installed in each of the imaging rooms Rl, R2, and R3
- a console 3 for image processing etc. is installed.
- each device in each of the photographing rooms Rl, R2, R3 is connected via a network N.
- a server (management device) 4 that manages all the radiation image detection devices 2 on the network N.
- the network N may be a communication line dedicated to the system, but for reasons such as lowering the degree of freedom of the system configuration, an existing network such as Ethernet (registered trademark) is used. I prefer a line.
- Ethernet registered trademark
- FIG. 2 is an explanatory diagram showing the main configuration of the radiation image capturing apparatus 1.
- the radiographic imaging device 1 is installed and used in a radiography room in a hospital, for example.
- the radiographic imaging device 1 has a radiation source (radiation irradiation means) 11 and generates radiation by applying a tube voltage to the radiation source 11.
- a diaphragm 12 for adjusting the radiation field is provided at the radiation irradiation port of the radiation source 11 so as to be freely opened and closed.
- a bed 13 on which the patient S is placed is provided below the radiation source 11 and within the radiation irradiation range. Under the bed 13, radiation image detection is performed to detect radiation images by reading the intensity of radiation.
- a detection device mounting opening (not shown) for mounting the device 2 is provided.
- a phototimer 14 is provided below the detection device mounting opening. The phototimer 14 detects the radiation dose transmitted through the patient S, and when the radiation dose transmitted through the patient S reaches a predetermined dose, the phototimer 14 A signal is transmitted so that the radiation from the radiation source 11 is stopped.
- FIG. 3 is a block diagram showing a main configuration of the radiological image detection apparatus 2.
- Each of the plurality of radiological image detection apparatuses 2 includes a control unit as shown in FIG. 3, for example.
- a RAM (Random Access Memory) 22 is, for example, a volatile semiconductor memory, and constitutes a work area (not shown) for various programs executed by the control unit 21.
- a ROM (Read Only Memory) 23 is a read-only memory and stores, for example, individual information including various programs and identification information for identifying the radiation image detection apparatus 2.
- the various programs include an acquisition control program for acquiring the radiographic image information of the subject from the flat detector 24, an image storage control program for storing the acquired radiographic image information in the image memory 25, and radiographic image information.
- the display information generation program for generating the display image information output to the console 3, the display image information generated by the display information generation program, and the radiation image information are associated with each other.
- radiation image correction program for correcting radiation image information
- display image correction program for correcting display image information
- correction for obtaining correction information related to correction of radiation image Information acquisition program For example, a fixed program.
- the identification information is information unique to each of the plurality of radiation image detection apparatuses 2 connected via the network N, and each radiation image detection is performed in order to identify each of the plurality of radiation image detection apparatuses 2.
- This is information that is not duplicated and assigned to each device individually, and includes, for example, the production number and ID number. That is, the ROM 23 is an individual information storage unit that stores identification information according to the present invention.
- the flat detector 24 is irradiated from the radiation source 11 on a predetermined substrate such as a glass substrate.
- a plurality of pixels are arranged in a matrix to detect radiation that has been emitted and transmitted through at least a subject according to its intensity, and convert the detected radiation into an electrical signal and store it.
- the flat detector 24 detects, for example, a radiation light conversion layer that converts radiation into fluorescence (light) and fluorescence converted by the radiation light conversion layer to detect electricity.
- a radiation light conversion layer that converts radiation into fluorescence (light) and fluorescence converted by the radiation light conversion layer to detect electricity.
- An indirect type including a photoelectric conversion layer for converting a signal, and a radiation electric signal conversion layer having a radiation receiving portion for directly converting radiation into an electric signal, instead of the radiation light conversion layer and the photoelectric conversion layer.
- a direct type is mentioned.
- the image memory 25 stores radiation image information acquired by reading the electrical signal accumulated in the flat detector 24 under the control of the control unit 21. Specifically, it is composed of a nonvolatile memory such as a flash memory.
- the storage capacity of the image memory 25 is large enough to store at least two radiation images.
- the upper limit of the storage capacity is appropriately set according to the configuration of the radiography system 100, and is, for example, a size that can store about 10 radiographic images.
- the communication unit 26 communicates various information with the console 3 and the Sano by a wireless communication method such as a wireless LAN (Local Area Network).
- the communication unit 26 transmits (outputs) reduced image information generated by the control unit 21 and subjected to predetermined image correction to the console 3. Further, the communication unit 26 transmits key information for associating the reduced image information generated by the control unit 21 and transmitted to the console 3 with the radiation image information stored in the image memory 25 to the console 3. To do. Then, the communication unit 26 outputs the radiation image information (described later) stored in the image memory 25 to the console 3 after image correction.
- the communication unit 26 receives a shooting operation signal for controlling the shooting operation from the console 3.
- the power supply unit 27 includes a rechargeable battery 271 that supplies power to each unit constituting the radiographic image detection device 2, and a charging terminal (not shown) provided at a predetermined position of the radiographic image detection device 2. It is configured to be rechargeable through.
- the management information memory 28 stores management information such as identification information that is unique information of the radiation image detection apparatus 2 and information about the radiation image detection apparatus 2.
- the identification information stored in the management information memory 28 is a copy of the identification information stored in the ROM 23.
- the management information memory 28 is composed of, for example, a nonvolatile memory such as a flash memory.
- the management information includes, for example, initial data such as the size and sensitivity of the radiation image detection device 2, image correction data for performing image correction suitable for the radiation image detection device 2, Examples include battery data such as the remaining capacity of the rechargeable battery 271 and replacement time, and the number of shot images.
- the control unit 21 is composed of, for example, a CPU (Central Processing Unit) or the like, reads a predetermined program stored in the ROM 23, develops it in the work area of the RAM 22, and executes various processes according to the program.
- the control unit 21 includes a switching unit such as a TFT (Thin Film Transistor) that configures each pixel of the flat detector 24 based on the imaging operation signal transmitted from the console 3 while following the acquisition control program. Control . After that, the control unit 21 switches the reading of the electric signals accumulated in the respective pixels, causes all the electric signals accumulated in the flat detector 24 to be read, and performs the digital signal input.
- the control unit 21 acquires the radiation image information of the subject from the flat detector 24.
- control unit 21 stores the acquired radiation image information in the image memory 25 before a new radiation imaging of the subject according to the image storage control program. At this time, after acquiring the imaging date and the identification information of the radiological image detection device 2 stored in the ROM 23, the control unit 21 uses the imaging date and the identification information as incidental information of the radiographic image information. It is stored in the image memory 25. Further, the control unit 21 updates the management information changed by the current radiation imaging and stores it in the management information memory 28.
- the control unit 21 Each time the radiographic image information is acquired, the control unit 21 generates display image information to be output to the console 3 based on the acquired radiographic image information according to the display information generation program. To do. Specifically, the control unit 21 generates reduced image information having a smaller amount of information than the radiation image information as the display image information.
- the reduction ratio of this reduced image is preferably, for example, a reduction ratio at which the number of pixels in the row and column directions is 1Z2 to 1Z100 times that of the original image (a reduction ratio at which the total number of pixels is 1Z4 to 1Z10000 times).
- the total reduction in the number of pixels is preferably Sl / 4 to 1/2500 times.
- the additional information of the radiation image information described above is added to the display image information generated based on the information.
- the generation of the display image by the control unit 21 may be performed before the radiation image information is stored in the image memory 25! Or after the radiation image information is stored. Furthermore, the control unit 21 generates key information for associating the display image information generated by the control unit 21 with the radiation image information stored in the image memory 25 according to the association program.
- This key information is preferably information unique to the radiation image information simultaneously existing in the image memory 25.
- the key information may be an image ID unique to the radiographic image information within an appropriate range such as in the world, in the region or in the facility, or may be imaging time information indicating the imaging time. It may be address information corresponding to the storage address on the image memory 25, storage order information related to the order stored in the image memory 25, or display image information and the image memory 25. Other information may be used as long as the information can be associated with the stored radiation image information.
- the control unit 21 corrects the acquired radiographic image information according to the radiographic image correction program, or corrects the generated display image information according to the display image correction program.
- FPN Fixed
- a semiconductor such as a-Si (amorphous.silicon) constituting the flat detector 24.
- Pattern Noise and white correction (gain correction) to correct gain variation for each pixel of the flat detector 24.
- the control unit 21 acquires correction information related to the correction of the radiographic image according to the correction information acquisition program. Specifically, for example, in FPN correction, a dark current signal (FPN Signal) and white image data for white correction.
- FPN Signal dark current signal
- white image data for white correction.
- FPN correction is image correction that obtains a true image signal by removing the FPN signal that is included in the image signal and becomes noise from the image signal obtained by shooting.
- the FPN signal is generally a function of temperature and accumulation time, and furthermore, since the photographing time differs for each subject, the flat detector 24 is used for each photographing when performing FPN correction. Is measured, and after shooting, it is approximately equal to the measured accumulation time The dark current is accumulated in the state where the flat detector 24 is not irradiated with X-rays for the time. Thereafter, by reading out the signal from the flat surface detector 24, an FPN image signal substantially equal to the FPN signal included in the photographed image is obtained.
- a true image signal can be obtained by subtracting the image signal power obtained by photographing the subject from this FPN image signal.
- white image data (Log value) is subtracted from an image signal converted by Log (logarithmic) after FPN correction.
- the white image data is image data acquired by irradiating the entire flat detector 24 with uniform radiation without passing through the subject, and the acquired white image data is stored in a predetermined storage means. Is done. The acquisition of the white image data is performed periodically, for example, every morning or once a week.
- control unit 21 stores in the image memory 25 based on the imaging propriety signal transmitted from the communication unit 36 of the console 3 and received via the communication unit 26 of the radiological image detection apparatus 2 according to the determination program. It is determined whether the stored radiation image information can be transmitted to the console 3 or not. More specifically, the control unit 21 is associated with the key information among a plurality of radiation image information stored in the image memory 25 based on the imaging propriety signal and the key information related to the imaging propriety signal. Send radiation image information to console 3!
- FIG. 4 is a block diagram showing the configuration of the main part of the console 3.
- the console 3 displays a radiographic image captured by the radiographic image detection device 2 or allows a predetermined amount of radiographic images to be displayed in order for the user to confirm whether or not the radiographic imaging has been properly performed. It performs image processing and controls the radiographic operation of the radiation image detection apparatus 2. That is, the console 3 serves both as a photographing operation control device according to the present invention and an image processing device. As shown in FIG. 4, the console 3 includes a control unit 31, a RAM 32, a ROM 33, a display unit 34, an operation input unit 35, a communication unit 36, a power supply unit 37, an image storage unit 38, and the like. Each part is connected by bus B.
- the RAM 32 is, for example, a volatile semiconductor memory, and constitutes a work area (not shown) of various programs executed by the control unit 31. In addition, the RAM 32 is reduced as a plurality of display image information output and input from the communication unit 26 of the radiation image detection apparatus 2. Store small image information. Note that the RAM 32 may be a nonvolatile memory.
- the ROM 33 is a read-only memory and stores various programs executed by the control unit 31. Examples of the various programs include an image processing program for image processing of a radiographic image, a control program for controlling an imaging operation of the radiographic image detection apparatus 2, and the like.
- the control unit 31 is also configured with, for example, a CPU equal power, reads a predetermined program stored in the ROM 33, and expands it in the work area of the RAM 32.
- the control unit 31 executes various processes according to the program. Specifically, the control unit 31 is based on the radiation image information transmitted from the communication unit 26 of the radiological image detection apparatus 2 and received via the communication unit 36 according to the image processing program, and the radiographic image related to the radiographic image information. Tone processing is performed for predetermined image processing such as ⁇ conversion processing.
- control unit 31 creates a shooting operation signal based on the operation signal from the operation input unit 35 while following the control program. Thereafter, the control unit 31 outputs the imaging operation signal to the radiation image detection device 2 via the network N, thereby controlling the imaging operation of the radiation image detection device 2.
- the display unit 34 includes, for example, a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), and the like.
- the display unit 34 displays various screens on the display screen according to instructions of display signals output from the control unit 31 and input. Specifically, the display unit 34 displays a plurality of thumbnail images on the display screen based on a plurality of thumbnail image information transmitted from the radiation image detection apparatus 2 and received via the communication unit 36. It is configured to be displayable.
- the display unit 34 displays an imaging operation instruction signal unit for instructing input of an imaging operation instruction signal when controlling the imaging operation of the radiation image detection device 2 on the display screen, and when displaying a reduced image.
- an imaging operation instruction signal unit for instructing input of an imaging operation instruction signal when controlling the imaging operation of the radiation image detection device 2 on the display screen
- a shooting suitability instruction unit for instructing input of a shooting suitability signal in association with each reduced image is displayed.
- the photographing operation instruction unit and the photographing suitability instruction unit are displayed on the display screen of the display unit 34 so as to be selectable based on a predetermined operation such as a mouse of the operation input unit 35, for example.
- the operation input unit 35 includes, for example, a keyboard, a mouse, and the like.
- the key pressing signal and the operation signal from the mouse that were pressed in step 1 are output to the control unit 31 as input signals.
- the operation input unit 35 determines whether the signal for moving the pointer on the display screen of the display unit 34, the image display instruction signal related to the display instruction of the radiographic image, and the radiographic image capturing state are appropriate.
- the radiographing propriety signal, the radiographic image detection apparatus 2 radiographing operation instruction signal, and the like are output (input) to the control unit 31.
- the operation input unit 35 outputs position information input by touching a transparent sheet panel covering the display screen of the display unit 34 with a finger or a dedicated stylus pen as an input signal to the control unit 31.
- a so-called touch panel may be used.
- the communication unit 36 communicates various information with the communication unit 26 of the radiation image detection apparatus 2 by a wireless communication method such as a wireless LAN. Specifically, the communication unit 36 receives the reduced image information and key information transmitted from the communication unit 26 of the radiation image detection apparatus 2. In addition, the communication unit 36 transmits to the radiation image detection apparatus 2 the imaging operation instruction signal, the imaging appropriateness signal input by the operation input unit 35, and the key information associated with the reduced image information related to the imaging appropriateness signal. To send.
- a wireless communication method such as a wireless LAN.
- the communication unit 36 receives the reduced image information and key information transmitted from the communication unit 26 of the radiation image detection apparatus 2.
- the communication unit 36 transmits to the radiation image detection apparatus 2 the imaging operation instruction signal, the imaging appropriateness signal input by the operation input unit 35, and the key information associated with the reduced image information related to the imaging appropriateness signal. To send.
- the power source unit 37 supplies power to each unit constituting the console 3.
- the power supply unit 37 may have a configuration including a charging battery configured to be chargeable via a predetermined charging terminal (not shown), or a power connection unit for connecting to an AC commercial power supply. It may be provided.
- the image storage unit 38 includes, for example, a hard disk drive and the like.
- the image storage unit 38 constitutes an image database that stores radiation image information related to a radiation image that has been subjected to predetermined image processing under the control of the control unit 31.
- FIG. 5 is a block diagram showing the main configuration of the server 4.
- the server 4 manages all the radiation image detection devices 2 on the network N.
- the server 4 includes a control unit 41, an information storage unit 42, a ROM 43, a display unit 44, an operation input unit 45, a communication unit 46, a power supply unit 47, and the like.
- the information storage unit 42 has, for example, a RAM, and this RAM is, for example, a volatile semiconductor memory.
- the storage area of the information storage unit 42 includes, for example, a work area for various programs executed by the control unit 41 (not shown), and a storage area for storing identification information and management information of the radiation image detection apparatus 2 (not shown). Etc.
- the ROM 43 is a read-only memory, and stores various programs executed by the control unit 41, for example, management programs for managing the respective radiation image detection apparatuses 2.
- the control unit 41 is configured with, for example, a CPU equal power, reads a predetermined program stored in the ROM 43, develops it in the work area of the information storage unit 42, and executes various processes according to the program.
- the predetermined program includes a management program for managing each radiation image detection apparatus 2.
- the management program causes the control unit 41 of the sano to recognize the identification information individually assigned to each of the plurality of radiation image detection devices 2, and each of the plurality of radiation image detection devices 2 based on the recognized identification information.
- the control unit 41 manages each radiation image detection device 2 based on the identification information and management information of each radiation image detection device 2.
- the communication unit 46 communicates various information with the radiation image detection apparatus 2 by a wireless communication method such as a wireless LAN. Specifically, the communication unit 46 receives the identification information and management information output from the communication unit 26 of the radiation image detection apparatus 2.
- the display unit 44 and the operation input unit 45 have substantially the same configuration as the display unit 34 and the operation input unit 35 provided in the console 3.
- the power supply unit 47 supplies power to each unit constituting the server 4.
- FIG. 6 is a flowchart showing the operation of the radiation image detection apparatus 2.
- control unit 21 of the radiation image detection apparatus 2 determines whether or not the communication unit 26 is input with an imaging start instruction from the console 3 (step S101). If the control unit 21 determines that the shooting start instruction has not been input (step S101: None), the control unit 21 maintains that state. If the control unit 21 determines that it has been input (step S101: yes), step S102. Migrate to The
- step S102 the control unit 21 of the radiological image detection apparatus 2 detects that the plane detector 24 of the radiological image detection apparatus 2 detects radiation, converts it into an electrical signal, and applies it to each pixel of the plane detector 24. Control to accumulate. As a result, radiation is emitted from the radiographic imaging device 1 to the subject in response to an imaging start instruction, and the plane detector 24 of the radiographic image detection device 2 detects the radiation that has passed through the subject. It is converted into a signal and accumulated in each pixel of the flat detector 24.
- the control unit 21 of the radiation image detection apparatus 2 controls the flat detector 24 to read the charges accumulated in the respective pixels, digitize them, and send an image signal to the control unit 21.
- radiation image information (original image) of the subject is acquired (step S103).
- the control unit 21 reads the acquisition control program from the ROM 23 and develops it in the RAM 22, controls the switching unit of each pixel of the flat detector 24 according to this acquisition control program, and the switching unit controls each pixel. Control is performed so that the reading of the electrical signal stored in is switched, and all the electrical signals stored in the flat detector 24 are read and digitized to send the image signal to the control unit 21. To do.
- control unit 21 reads out the radiation image correction program from the ROM 23 and develops it in the RAM 22, and in accordance with this radiation image correction program, the control unit 21 performs original image correction for performing predetermined image correction on the acquired radiation image information. Correction processing is performed (step S104).
- control unit 21 reads out the image storage control program from the ROM 23, expands it in the RAM 22, and stores the corrected radiation image information and incidental information in the image memory 25 in accordance with this image storage control program (Step S1). S 105).
- control unit 21 reads out the display information generation program from the ROM 23, expands it in the RAM 22, and in accordance with the display information generation program, the control unit 21 applies the information to the console 3 based on the acquired radiation image information. As the display image to be output, reduced image information having a smaller amount of information than the radiation image information is generated (step S106).
- control unit 21 reads out the display image correction program from the ROM 23 and develops it in the RAM 22, and performs predetermined image correction on the reduced image information in accordance with the display image correction program (step S 107). It should be noted that the generation and correction of the reduced image information is performed every time the radiological image information is acquired by the radiological image detection apparatus 2.
- control unit 21 reads the associated program from the ROM 23 and expands it in the RAM 22.
- key information for associating the reduced image information transmitted to the console 3 with the radiation image information stored in the image memory 25 is generated (step S108).
- control unit 21 controls the communication unit 26 to transmit the generated reduced image information, the accompanying information, and key information corresponding to the reduced image information to the console 3. (Step S109).
- step S110 the control unit 21 determines whether or not it is the power to receive the photographing propriety signal and key information from the console 3, and if not received (step S110: none) If it is received and received (step S110: yes), the process proceeds to step S111.
- step S111 when receiving the photographing propriety signal and the key information transmitted from the communication unit 36 of the console 3 via the communication unit 26, the control unit 21 reads the determination program from the ROM 23 and develops it in the RAM 22, Based on each imaging suitability signal and key information, the radiographic image information (original image) associated with the key information among the plurality of radiographic image information stored in the image memory 25 is transmitted to the console 3 according to the determination program. To determine whether to transmit. Specifically, the control unit 21 determines that the radiographic image information (original image) is to be transmitted when a radiographic image capturing state is input as a radiographing propriety signal and a signal including information is input. If the radiographic image capture state is inappropriate as the radiographing suitability signal! /, When a signal containing information is input, it is determined that the radiographic image information (original image) is not transmitted. Become.
- step S111 when it is determined that the radiation image information (original image) is transmitted to the console 3 (step S111; YES), the control unit 21 proceeds to step S112, and the radiation image information is read from the image memory 25. And the acquired radiation image information (original image) is transmitted from the communication unit 26 to the console 3, and then the process proceeds to step S114.
- step SI11 If it is determined in step SI11 that the radiation image information is not transmitted to the console 3 (step Sl ll; NO), the control unit 21 proceeds to step S113, Concerned After controlling each part of the radiological image detection apparatus 2 to accept the re-imaging of the radiographic image, the process proceeds to step S115.
- step S114 the control unit 21 determines whether or not the radiation image information is stored in the image storage unit 38 of the console 3 based on the presence / absence of a storage completion signal (described later) from the console 3. If not stored (step S114; NO), the state is continued. If stored (step S114; YES), the process proceeds to step SI15.
- the control unit 21 may be configured to delete the radiation image information stored in the image storage unit 38 of the console 3, that is, the radiation image information that does not need to be transmitted to the console 3. ⁇ .
- step S115 the control unit 21 updates the management information changed by the current radiation imaging and stores it in the management information memory 28. Thereafter, the control unit 21 causes the communication unit 26 to transmit the updated management information and identification information to the server 4 (step S116).
- FIG. 7 is a flowchart showing the operation of the console 3.
- the control unit 31 of the console 3 transmits the imaging start instruction signal to the radiation image detection apparatus 2 via the communication unit 36 (step S201). ).
- step S202 the control unit 31 determines whether or not the reduced image information and the key information are received from the radiation image detection apparatus 2, and if received, the case (step S202; none) If it is received (step S 202; present), the process proceeds to step S 203.
- step S203 when the control unit 31 receives the reduced image information and the key information transmitted from the communication unit 26 of the radiological image detection apparatus 2 via the communication unit 36, the control unit 31 receives the received reduced image information and the key information. Key information is stored in a predetermined area of RAM32.
- step S204 control unit 31 displays a plurality of reduced images and a shooting suitability instruction unit associated with each of the reduced images at a predetermined position on the display screen of the display unit 34. .
- the supplementary information added to the reduced image information is displayed in association with each reduced image.
- the shooting suitability instruction unit displayed on the display screen of the display unit 34 is selected and instructed based on a predetermined operation of the operation input unit 35 by the user.
- An imaging suitability signal indicating whether or not the radiographic imaging state is appropriate is input to the control unit 31 (step S205).
- the control unit 31 associates the input photographing propriety signal with key information related to the corresponding reduced image and stores it in the information storage area of the RAM 32. .
- the key information received via the communication unit 36 is stored in a predetermined storage area in the RAM 32, for example.
- the control unit 31 and the radiographing propriety signal instructed to transmit After reading the key information corresponding to the imaging suitability signal from the RAM 32, the communication unit 36 is controlled to be transmitted to the radiation image detection apparatus 2 (step S206).
- step S207 the control unit 31 determines whether or not the radiation image information (original image) has been received from the radiation image detection device 2, and if not received (step S207; none) If the message is continuously received (step S207; present), the process proceeds to step S208.
- step S208 when the control unit 31 receives the radiation image information (original image) transmitted from the communication unit 26 of the radiation image detection device 2 via the communication unit 36, the control unit 31 executes an image processing program from the ROM 33. Based on the received radiographic image information! / And perform predetermined image processing such as gradation processing of the radiographic image related to the radiographic image information and ⁇ conversion processing according to the image processing program. .
- control unit 31 stores the radiographic image information after the image processing in a predetermined area of the image storage unit 38. Store it in the area (step S209).
- the control unit 41 of the server 4 follows the management program based on the identification information and management information acquired from the radiation image detection apparatus 2, while storing the identification information and management information in the information storage unit 42, thereby Manages radiation image detector 2 connected to N.
- the control unit 41 for each radiation image detection device 2, that is, for each identification information of the radiation image detection device 2, for example, the imaging date and the number of imaging times on the imaging date, the maintenance date and the radiation image at the time of maintenance.
- Information such as the state of each part of the photographing apparatus 1, the date of occurrence of the failure, and the location of the failure is stored in the information storage unit 42. These pieces of information are preferably updated daily.
- control unit 41 provides information stored in the information storage unit 42 in response to a request from the radiation image detection apparatus 2 or the console 3.
- Console 3 uses the information provided to make decisions and act. Examples of this activity include, but are not limited to, power displayed on the display unit 34, control of the radiographic image capturing apparatus 1, control of the radiographic image detection apparatus 2, and the like.
- console 3 displays information on the display unit 34 using information provided from the server 4.
- the console 3 determines whether maintenance is necessary using the information provided from the server 4 and determines that maintenance of a certain radiation image detection device 2 is necessary, the console 3 determines that the radiation image detection device 2 A maintenance warning is displayed on the display unit 34. More specifically, for example, the console 3 determines whether or not the total number of imaging after the previous maintenance date has exceeded a preset threshold, and the radiological image detection apparatus with the total number of imaging exceeding the threshold. The maintenance warning for 2 is displayed on the display 34. In addition, for example, the console 3 determines whether or not the previous maintenance day power has also passed a predetermined period, and causes the display unit 34 to display a maintenance warning for the radiation image detection apparatus 2 that has passed the predetermined period.
- the console 3 requests the server 4 for information regarding the radiographic image detection device 2, and The received information is used to display history information of the radiological image detection apparatus 2 and activities to be dealt with on the display unit 34.
- the console 3 determines that a problem has occurred in a certain radiation image detection apparatus 2
- the console 3 requests the server 4 for information regarding the radiation image detection apparatus 2, and receives the information.
- the necessary confirmation items of the radiological image detection apparatus 2 are identified preferentially, and the operator can know the necessary confirmation items and the priority order together with information identifying the radiological image detection apparatus 2. Display on display 34.
- the operator can concentrate on matters to be handled by the operator, such as replacement of the rechargeable battery 271 and replacement of parts' maintenance. it can.
- console 3 controls the radiation image capturing apparatus 1 using information provided from the server 4.
- the radiation irradiation of the radiographic image capturing apparatus 1 is controlled using the information provided from the server 4. More specifically, for example, when the radiographic sensitivity of the radiological image detection apparatus 2 changes according to the number of imaging, the console 3 calculates the total number of imaging using the information provided from the server 4 and The radiation dose of the radiographic imaging device 1 is controlled according to the total number of imaging. Further, for example, when the accuracy of the timing control of the flat detector 24 increases due to the number of days elapsed since the previous maintenance date, the console 3 uses the information provided from the server 4 to check the previous maintenance date. The elapsed days are calculated, and the radiation irradiation time or radiation generation intensity of the radiographic imaging device 1 is controlled according to the elapsed days.
- console 3 controls the radiation image detection apparatus 2 using information provided from the server 4.
- the console 3 uses the information provided from the server 4 to communicate with the communication unit 26 of the radiation image detection apparatus 2. Is transmitted to the radiation image detection apparatus 2 to indirectly control the communication unit 26 of the radiation image detection apparatus 2. Also, for example, when the characteristics of the rechargeable battery 271 of the radiation image detection device 2 change according to the number of days elapsed from the previous maintenance date (charging date)
- the console 3 uses the information provided from the server 4 to transmit the calculation information regarding the calculation of the remaining number of radiographable images to the radiation image detection apparatus 2.
- the radiological image detection apparatus 2 calculates the remaining number of images that can be captured based on the transmitted calculation information, and displays a warning display when the remaining number of images that can be captured decreases. In this way, the radiation image detection apparatus 2 is indirectly controlled.
- FIG. 8 is a timing chart showing an example of an operation related to imaging processing by the radiation imaging system 100.
- step S1 When an imaging start instruction is input to console 3 (step S1), the radiation image capturing apparatus 1 irradiates the subject with radiation and the radiation image detecting apparatus 2 is used to irradiate the subject.
- Perform radiography step S2). That is, the radiation that has passed through the subject is detected by the flat detector 24 of the radiological image detection apparatus 2, converted into an electrical signal, and stored in each pixel of the flat detector 24.
- control unit 21 of the radiation image detection apparatus 2 acquires the radiation image information of the subject from the flat detector 24 (step S3). Specifically, the control unit 21 reads out the acquisition control program from the ROM 23 and develops it in the RAM 22, controls the switching unit of each pixel of the flat detector 24 according to this acquisition control program, and accumulates it in each pixel. The reading of the electric signal is switched and all electric signals accumulated in the flat detector 24 are read.
- control unit 21 reads out the radiation image correction program from the ROM 23, expands it in the RAM 22, and performs predetermined image correction on the acquired radiation image information (original image) according to the radiation image correction program.
- the original image to be corrected is corrected (step S4).
- control unit 21 reads the image storage control program from the ROM 23 and develops it in the RAM 22, and in accordance with this image storage control program, the corrected radiation image information (original image) and incidental information are stored in the image memory 25.
- the corrected radiation image information original image
- incidental information are stored in the image memory 25.
- control unit 21 reads out the display information generation program from the ROM 23 and develops it in the RAM 22 2, and in accordance with this display information generation program, based on the acquired radiation image information (original image), the console 3 As a display image output for Reduced image information having a smaller amount of information than information is generated (step S6).
- control unit 21 reads the display image correction program from the ROM 23, and executes the RAM.
- the image is expanded to 22, and predetermined image correction is performed on the reduced image information in accordance with the display image correction program (step S7).
- control unit 21 reads the associated program from the ROM 23 and expands it in the RAM 22.
- key information for associating the reduced image information transmitted to the console 3 with the radiation image information (original image) stored in the image memory 25 is generated (step S8).
- control unit 21 controls the communication unit 26 to transmit the generated reduced image information, supplementary information, and key information corresponding to the reduced image information to the console 3 (step S9). ).
- the control unit 31 of the console 3 receives the received reduction image information.
- Image information and key information are stored in a predetermined area of the RAM 32 (step S10).
- the control unit 31 corresponds to the image display instruction signal.
- a plurality of reduced image information is acquired from the RAM 32, and a plurality of reduced images based on the acquired reduced image information are displayed as thumbnails on the display unit 34 (step S11).
- the control unit 31 displays a plurality of reduced images and a photographing suitability instruction unit associated with each of the reduced images at a predetermined position on the display unit 34. At this time, each reduced image is displayed in association with the accompanying information added to the reduced image information.
- the control unit 31 stores the inputted photographing suitability signal in the information storage area of the RAM 32 every time the photographing suitability signal is inputted.
- the key information received via the communication unit 36 is stored in a predetermined storage area in the RAM 32, for example.
- the control unit 31 and the radiographing appropriateness signal instructed to transmit After reading out the key information corresponding to the imaging suitability signal from the RAM 32, the communication unit 36 is controlled and transmitted to the radiation image detection apparatus 2 (step S13).
- the control unit 21 reads the determination program from the ROM 23 and reads the RAM 22 In accordance with this determination program, radiation image information (original image) associated with the key information among the plurality of radiation image information stored in the image memory 25 based on each imaging suitability signal and key information. ) Is transmitted to console 3 (step S14). Specifically, the control unit 21 determines that the radiographic image information (original image) is to be transmitted when a signal including information indicating that the radiographic image capturing state is appropriate is input as the radiographing propriety signal. When a signal including information indicating that the radiographic image capturing state is inappropriate is input as the radiographing propriety signal, it is determined that the radiographic image information should not be transmitted.
- step S14 if it is determined that the radiation image information (original image) is to be transmitted to the console 3 (step S14; YES), the control unit 21 proceeds to step S15, and the radiation image information is read from the image memory 25. After acquiring (original image) and transmitting the acquired radiation image information (original image) from the communication unit 26 to the console 3, the process proceeds to step S19.
- the control unit 31 of the console 3 receives the image from the ROM 33.
- the processing program is read out and expanded in the RAM 32.
- the radiation image Predetermined image processing such as gradation processing and ⁇ conversion processing of the radiation image related to the information (original image) is performed (step S17).
- control unit 31 stores the radiographic image information (original image) after image processing in a predetermined area of the image storage unit 38 (step S18).
- the control unit 21 of the radiation image detection apparatus 2 does not need to transmit the radiation image information to the console 3. It may be configured to erase data.
- step S14 When it is determined in step S14 that the radiographic image information is not transmitted to the console 3 (step S14; NO), the control unit 21 proceeds to step S19, and the radiation image is displayed. After each part of the detection device 2 is controlled to accept a radiographic image re-imaging, the process proceeds to step S19.
- control unit 21 may be configured to delete the radiation image information that does not need to be transmitted to the console 3! /.
- the control unit 21 of the radiographic image detection apparatus 2 performs the management changed by the current radiography. Information is updated and stored in the management information memory 28 (step S19). Thereafter, the updated management information and identification information are transmitted from the communication unit 26 of the radiation image detection apparatus 2 to the server 4 (step S20).
- the control unit 41 of the sano stores the updated management information and identification information in the information storage unit 42 while following the management program based on the acquired identification information and management information. Is managed (step S21).
- the imaging process when the new radiological image detection apparatus 2 is connected to the network N is performed when the new radiological image detection apparatus 2 is connected to the network N in each of the imaging rooms Rl, R2, and R3.
- Identification information and management information are transmitted to the server 4 from the communication unit 26 of the radiation image detection apparatus 2.
- the control unit 41 of the server 4 follows the management program based on the acquired identification information and management information, while storing the identification information and management information in the information storage unit 42, so that the network N can be newly added. After managing the connected radiation image detection apparatus 2, the process proceeds to step S1.
- the server 4 manages a plurality of radiation image detection devices 2 based on the identification information fetched from the ROM 23 of the radiation image detection device 2. Therefore, the plurality of radiological image detection apparatuses 2 can be managed in a unified manner, and can be managed more efficiently than when managed by the respective consoles 3 of the radiographing rooms Rl, R2, and R3. Furthermore, if a plurality of radiation image detection devices 2 can be managed centrally, information collection of each radiation image detection device 2 can be easily performed. As a result, a prior state check or a radiation image detection device 2 that has caused a problem is obtained. It is also easy to identify this.
- the server 4 is connected to the plurality of radiation image detection apparatuses 2 and the plurality of consoles 3 via the network N, the plurality of consoles 3 are based on the identification information. If the management information of 2 is read, the current state can be always grasped. In particular, even if the radiation image detection device 2 moves on the network N, if the identification information is confirmed at the destination, the management information corresponding to the radiation image detection device 2 can be output to the destination console 3. It becomes possible. That is, on the network N, even if the radiation image detection device 2 moves, it can be easily managed.
- console 3 is also an image processing apparatus, it is possible to perform image processing of radiation image information without connecting the image processing apparatus to the network N separately, thereby simplifying the system configuration. be able to.
- the new radiation image detection device 2 is connected to the network N as the timing at which the identification information and the management information are transmitted from the communication unit 26 of the radiation image detection device 2. or when a force is mentioned as an example when the radiography is stored in the radiation image force S console 3 complete S, anytime Yogu besides these and the timing to be transmitted, for example, 1 day Examples include the start and end of work. If identification information and management information are transmitted at the start of work, Sano will issue a warning or write back image correction data based on battery data and cumulative number of shots in the management information before radiography. And the day's work can be carried out smoothly.
- the configuration in which the server 4 is connected as a single unit on the network N is shown as an example.
- one console 3 among the plurality of consoles 3 connected on the network N is shown. May operate as a management apparatus according to the present invention.
- the system configuration can be simplified as compared with the case where the management device is installed alone. . In this case, it is also possible to input identification information directly from the console 3 without using a communication line.
- the force described by exemplifying the case where the radiographic image detection apparatus 2 corrects the original image and the reduced image may be corrected by the console 3.
- the control unit 41 of the server 4 uses the radiation information from the plurality of management information stored in the information storage unit 42 based on the identification information of the radiation image detection device 2 used for imaging. Management information corresponding to the image detection device 2 is extracted and transmitted to the console 3.
- the control unit 31 of the console 3 acquires the image correction data from the received management information and corrects the original image or the reduced image based on the image correction data.
- the radiation imaging system and the management program thereof according to the present invention are useful for radiographic imaging using a force-set type radiographic image detector, and in particular, radiographic image detection moved to various locations. It is suitable for use when taking radiographic images with a vessel.
- Radiography system 71 Rechargeable battery
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JP2004276936A JP2007330275A (ja) | 2004-09-24 | 2004-09-24 | 放射線撮影システム |
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Cited By (3)
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WO2009031411A1 (ja) * | 2007-09-06 | 2009-03-12 | Konica Minolta Medical & Graphic, Inc. | 放射線画像撮影システム |
JP2012151994A (ja) * | 2011-01-19 | 2012-08-09 | Konica Minolta Medical & Graphic Inc | 充電装置および放射線画像検出システム |
JP2013039226A (ja) * | 2011-08-16 | 2013-02-28 | Fujifilm Corp | 放射線撮影システムの線量情報共有化装置および方法 |
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US7499524B2 (en) * | 2006-04-27 | 2009-03-03 | General Electric Company | Methods and apparatus for mobile imaging systems |
WO2009122797A1 (ja) * | 2008-03-31 | 2009-10-08 | コニカミノルタエムジー株式会社 | 放射線画像生成システム |
JP6486090B2 (ja) * | 2014-12-09 | 2019-03-20 | キヤノン株式会社 | 放射線撮像システム及びその制御方法 |
JP7392289B2 (ja) * | 2019-05-22 | 2023-12-06 | コニカミノルタ株式会社 | 放射線画像検出装置 |
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JP2001037749A (ja) * | 1999-08-03 | 2001-02-13 | Canon Inc | デジタルx線撮影システム及び方法 |
JP2004073425A (ja) * | 2002-08-15 | 2004-03-11 | Konica Minolta Holdings Inc | 放射線画像撮影システム |
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JPH01102541A (ja) * | 1987-10-16 | 1989-04-20 | Toshiba Corp | 放射線画像装置 |
US5172419A (en) * | 1991-03-05 | 1992-12-15 | Lumisys, Inc. | Medical image processing system |
US6678764B2 (en) * | 2000-10-20 | 2004-01-13 | Sony Corporation | Medical image processing system |
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- 2004-09-24 JP JP2004276936A patent/JP2007330275A/ja active Pending
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- 2005-08-30 WO PCT/JP2005/015772 patent/WO2006033220A1/ja active Application Filing
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JP2001037749A (ja) * | 1999-08-03 | 2001-02-13 | Canon Inc | デジタルx線撮影システム及び方法 |
JP2004073425A (ja) * | 2002-08-15 | 2004-03-11 | Konica Minolta Holdings Inc | 放射線画像撮影システム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2009031411A1 (ja) * | 2007-09-06 | 2009-03-12 | Konica Minolta Medical & Graphic, Inc. | 放射線画像撮影システム |
US8275835B2 (en) | 2007-09-06 | 2012-09-25 | Konica Minolta Medical & Graphic, Inc. | Radiographic image capturing system |
JP5218410B2 (ja) * | 2007-09-06 | 2013-06-26 | コニカミノルタエムジー株式会社 | 放射線画像撮影システム |
JP2012151994A (ja) * | 2011-01-19 | 2012-08-09 | Konica Minolta Medical & Graphic Inc | 充電装置および放射線画像検出システム |
JP2013039226A (ja) * | 2011-08-16 | 2013-02-28 | Fujifilm Corp | 放射線撮影システムの線量情報共有化装置および方法 |
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US20060080143A1 (en) | 2006-04-13 |
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