JP2005111193A - Radiographic imaging system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide image data for high-level diagnosis and a system of high operation reliability by allowing correction data to be used for a radiographic image correction processing to be easily registered and referred to from individual apparatuses constituting the system, so as to keep excellent convenience for an operator regardless of a system arrangement form or a load situation in each apparatus, and by normally performing an optimum correction processing in the radiographic image correction processing. <P>SOLUTION: A two-dimensional radiation detector, a controller and a database are mutually connected in the system. The correction data to be generated by the two-dimensional radiation detector or the controller are registered to the database or retrieved therefrom by both of the two-dimensional radiation detector and the controller, by defining, as an access key, the identification information of the two-dimensional radiation detector, a generation condition in generating the correction data, or the identification information of each kind of output devices for outputting a diagnostic image. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a radiographic imaging system including a two-dimensional radiation detection apparatus that outputs digitized image data and a controller that receives and displays the image data.

  In recent years, there is a growing tendency to increase the efficiency and speed of diagnosis by converting radiation image information of patients generated in hospitals into digital data and storing and transmitting the information. For this reason, in the field of direct imaging, instead of the conventional screen / film system, a radiographic imaging system (commonly known as CR: computed radiography) that outputs digital data using a stimulable phosphor, 2. Description of the Related Art Radiation imaging systems (commonly called FPD: flat panel detectors) that output digital data using a flat panel detector have come to be widely used.

  The latter FPD is a two-dimensional array of solid-state image sensors. By using a photoconductive material that generates charges of electrons and holes by X-ray energy, such as a-Se, as detection means, Direct method of converting energy directly into electric charge and reading out this electric charge as an electric signal by a reading element such as TFT arranged two-dimensionally in a fine area unit, and converting X-ray energy into light with a scintillator or the like, The converted light is converted into electric charge by a photoelectric conversion element such as a-Si arranged two-dimensionally in a fine area unit, and this charge is arranged two-dimensionally in the same fine area unit as the photoelectric conversion element. The indirect method of reading out an electric signal by a reading element such as a TFT is best known.

  Further, in the present invention, the X-ray energy is converted into light by a scintillator or the like, and a lot of the converted light is arranged in a lattice form on the same plane through a condenser such as a lens or an optical fiber. An image division type FPD that receives light by a sensor and reads out as an electrical signal via photoelectric conversion and electronic / voltage conversion inside a CCD or CMOS sensor is also defined as one of solid state flat detectors.

By the way, in such a flat panel detector (FPD), strictly depending on the characteristics of the readout section mainly composed of TFTs, the transfer path of the charges read out by the readout section, or the amplifier circuit section in the subsequent stage. Are known to cause variations in offset values and gain values over time on a pixel-by-pixel basis, and methods for correcting these variations have already been disclosed in JP-A-11-316832 and many other known examples.
Japanese Patent Laid-Open No. 11-316832

  However, these disclosed correction methods and correction means, as well as data for correction processing, are concentrated on a specific device (for example, either a radiation detector or a controller for controlling it). These have no switching function of the arrangement, and cannot cope with changes in the installation form and the load status of each device constituting the system.

  In addition, as a method for correcting an offset value disclosed in the same publicly known example as described above, there is a method of discharging the charge corresponding to the offset value generated in the photoelectric conversion element prior to radiographic imaging, Actually, a short time is required until the solid-state imaging device is irradiated with radiation, so that it cannot be said to be a complete offset correction.

The following means for solving the above-described problems and achieving the above-described object are proposed.
(1) A two-dimensional radiation detector that detects radiation transmitted through a subject, a controller that receives and displays radiation image data transmitted by the two-dimensional radiation detector, and primary radiation detected by the two-dimensional radiation detector A radiographic imaging system comprising a database function for registering correction data generated by at least one of the two-dimensional radiation detection apparatus and the controller used for image data correction processing,
The two-dimensional radiation detection apparatus and the controller, using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus of the radiation image data as an access key, Means for registering and retrieving the correction data in a database function;
At the time of radiographic imaging, at least one of the two-dimensional radiation detection device and the controller performs correction processing of the primary radiographic image data using the correction data retrieved from the database by the access key. This is a featured radiographic imaging system.
(2) The generation condition of the correction data includes a generation time when the correction data is generated by the two-dimensional radiation detection apparatus, an elapsed time since the activation of the two-dimensional radiation detection apparatus, and the two-dimensional radiation detection apparatus. When the correction data is searched for at the time of radiographic imaging, the generation time is the closest to the radiographic imaging time or the radiographic image is started from the activation of the two-dimensional radiation detection device. The elapsed time until imaging is the closest value of the elapsed time since the activation of the two-dimensional radiation detection apparatus at the time of generating the correction data, or the environment inside the two-dimensional radiation detection apparatus at the time of imaging the radiographic image The correction data is searched by selecting a temperature having the closest value among the environmental temperatures inside the two-dimensional radiation detection apparatus when the correction data is generated. A radiation image capturing system according to claim 1,. (3) The correction data may include at least one of offset correction data and gain correction data of primary radiation image data detected by the two-dimensional radiation detection apparatus. It is a radiographic imaging system of description.
(4) The correction data includes two correction data for the display image of the controller and correction data for a diagnostic image with respect to one piece of the radiation image data. 4. The radiographic image capturing system according to claim 1.
(5) The two-dimensional radiation detection apparatus, together with the primary radiation image data for the controller display having a size smaller than that for the diagnostic image at the time of radiographic imaging, the identification information of the two-dimensional radiation detection apparatus, Transmitting at least one of correction data generation conditions and identification information of the output device to the controller;
The controller retrieves the correction data from the database using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus as an access key, and the controller Correction and display of primary radiation image data for display,
In addition, after the transmission of the primary radiation image data for display on the controller, the two-dimensional radiation detection device includes identification information of the two-dimensional radiation detection device, generation conditions of the correction data, and identification information of the output device. 2. The correction data is searched from the database by using at least one access key, and correction processing of the diagnostic primary radiation image data and transmission of the diagnostic image data to the controller are performed. It is a radiographic imaging system of any one of thru | or 4 thru | or 4.
(6) The two-dimensional radiation detection apparatus, together with primary radiation image data for displaying the controller having a size smaller than that for the diagnostic image at the time of radiographic imaging, identification information of the two-dimensional radiation detection apparatus, Transmitting at least one of correction data generation conditions and identification information of the output device to the controller;
The controller searches the correction data for the display image from the database using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus as an access key. And correction processing and display of the primary radiation image data for the controller display,
The two-dimensional radiation detection apparatus transmits the primary radiation image data for diagnosis to the controller after transmitting the primary radiation image data for display of the controller,
Further, the controller uses the at least one of the identification information of the two-dimensional radiation detection device, the generation condition of the correction data, and the identification information of the output device as an access key from the database for correction data for the diagnostic image. The radiographic imaging system according to any one of claims 1 to 4, wherein a correction process is performed on the received primary radiographic image data for diagnosis.
(7) The radiographic imaging system according to claim 5 or 6, wherein correction processing is not performed on the display image of the controller.
(8) The radiographic imaging according to any one of claims 1 to 7, wherein the database function is included in at least one of the two-dimensional radiation detection apparatus and the controller. System.
(9) The radiographic imaging system according to any one of (1) to (8), wherein the two-dimensional radiation detection apparatus includes a plurality of units.
(10) The radiographic imaging system according to any one of (1) to (9), wherein the controller includes a plurality of units.

With the above configuration, the present invention has the following effects.
(Effects of Claim 1) According to the present invention, the mutual communication speed between the two-dimensional radiation detection apparatus, the controller, and the database function, the load due to various processes of the two-dimensional radiation detection apparatus, and the various processes of the controller Depending on the load conditions, the primary radiation image data detected by the two-dimensional radiation detection device may be subjected to correction processing for generating a display image on the controller or for generating a diagnostic image between the two-dimensional radiation detection device and the controller. It is possible to switch easily. This indicates that it is possible to provide a radiographic imaging system that is stably supplied with good usability for the operator, represented by the image display speed on the controller.

  In addition, the correction data that the two-dimensional radiation detection apparatus generates at any time during radiographic imaging of the subject is registered in the database function together with at least one of the identification information of the two-dimensional radiation detection apparatus and the correction data generation conditions. Makes it possible to select optimum correction data for the primary radiation image data of the two-dimensional radiation detection apparatus obtained by radiographic imaging. This contributes to improving the image quality particularly in a region where the amount of transmitted radiation of the subject is small, because an accurate correction process can be applied to the correction amount that is always slightly varied.

Further, the controller registers correction data determined for each type of output device or each output device together with the output device identification information in advance in the database function, and uses this for the display image data correction processing of the controller. This is effective in achieving consistency between the appearance of the display image on the controller and the appearance of the diagnostic image output by the output device.
(Effects of Claim 2) According to the present invention, an optimum correction data is always selected at the time of radiographic imaging for a correction amount that slightly changes constantly depending on the use state of the two-dimensional radiation detection apparatus and the surrounding environment. It becomes possible.

  At this time, if the generation condition of the correction data is the generation time when the correction data is generated by the two-dimensional radiation detection apparatus, the correction data with the generation time closest to the time when the radiographic image was taken is selected. Therefore, improvement in image quality can be expected.

  In addition, when the generation condition of the correction data is the elapsed time from the start of the two-dimensional radiation detection apparatus when the correction data is generated by the two-dimensional radiation detection apparatus, the two-dimensional radiation detection when the radiographic image is taken By selecting correction data having an elapsed time that is closest to the elapsed time since the start of the apparatus, an improvement in image quality can be expected.

Furthermore, when the generation condition of the correction data is the environmental temperature inside the two-dimensional radiation detection apparatus when the correction data is generated by the two-dimensional radiation detection apparatus, the two-dimensional radiation detection when the radiographic image is taken By selecting the correction data of the environmental temperature closest to the internal environment temperature of the apparatus, it is possible to perform an accurate correction process of the correction amount mainly having a high temperature dependency, and an improvement in image quality can be expected here.
(Effect of Claim 3) According to the present invention, the offset correction amount and the gain correction amount having the largest fluctuations in the primary radiation image data of the two-dimensional radiation detection apparatus are set as correction processing targets, particularly for offset correction. In a region where the amount of transmitted radiation of the subject is small, even a slight correction error greatly affects the deterioration of the image quality, which greatly contributes to the improvement of the image quality of the output image of this system.
(Effect of claim 4) According to the present invention, by providing dedicated correction data to the display image data to the controller, the display image data is generally much smaller in capacity than the diagnostic image data. It is possible to increase the image display speed on the controller and provide a radiographic imaging system that is convenient for the operator.
(Effect of Claim 5) According to the present invention, when the data transfer between the two-dimensional radiation detection apparatus and the controller uses a communication means having a relatively low data transfer speed such as wireless communication, the two-dimensional radiation detection apparatus First, only the information of the part necessary for image display on the controller in the primary radiation image data (generally, the thinned image data of about one-tenth the size of the diagnostic image data) is transferred to the controller without correction processing. In the controller, the received thinned image data for display is corrected using appropriate correction data selected from the database, and the image can be displayed on the console in a relatively short time.

At this time, the operator first confirms the positioning of the subject based on the display image, then confirms the validity of various image processing, and after completing this work, instructs the output of the diagnostic image to the output device, and then performs the next shooting. In preparation for preparation, the two-dimensional radiation detection apparatus side uses this time to perform correction processing on diagnostic image data and transfer diagnostic image data to the console, so the data transfer speed is relatively slow. Even if the communication means is used, it is possible to sufficiently transfer the diagnostic image to the console by the next imaging, and it is possible to provide a radiographic imaging system that matches the workflow at the imaging site.
(Effect of Claim 6) According to the present invention, when the data transfer between the two-dimensional radiation detection apparatus and the controller uses a communication means having a relatively high data transfer speed such as wired communication, the two-dimensional radiation detection apparatus side It is possible to perform correction processing on the primary radiation image data, generate display image data and diagnostic image data of the controller, and transfer them to the controller.

  Further, from the two-dimensional radiation detection device side, only the primary radiation image data corresponding to the diagnostic image size is sent, and after receiving this on the controller side, after thinning out to the image data corresponding to the controller display image size, It is also possible to perform correction processing with the corresponding correction data and display it, and further to perform correction processing with the corresponding correction data on the primary radiation image data corresponding to the diagnostic image size.

This makes it possible to provide a radiation image capturing system that is always stable for the convenience of the operator represented by the image display speed on the controller.
(Effect of Claim 7) According to the present invention, when the image is displayed on the controller, the correction processing is not applied to the display image data. Therefore, the load on the controller is reduced, and the radiation that is easy for the operator to use. An image photographing system can be provided.

At this time, since the monitor used for displaying the image of the normal controller has only about 8 bits in density gradation, depending on the operator, there is no particular problem that the display image is uncorrected, and the positioning of the subject is mainly performed. This is because it may be used for confirmation.
(Effect of Claim 8) According to the present invention, when at least one of the controller and the two-dimensional radiation detection apparatus has sufficient performance, it is not necessary to prepare separate hardware for the database function, and inexpensive radiation is provided. An image capturing system can be provided.
(Effect of Claim 9) According to the present invention, each two-dimensional radiation detection apparatus is optimal for itself using at least one of the identification information of the two-dimensional radiation detection apparatus and the correction data generation condition from the database function. Correction data can be selected, and improvement in image quality performance of the entire system can be expected.

At this time, if the database function is included in the controller or arranged on hardware dedicated to the database function, there is a risk of losing at least the correction data of the failed two-dimensional radiation detection device due to the failure of each two-dimensional radiation detection device. Can be avoided, and a radiographic imaging system with high operational reliability can be provided.
(Effect of Claim 10) According to the present invention, if the database function is included in a specific controller or arranged on hardware dedicated to the database function, not only the failure of the two-dimensional radiation detection apparatus but also the failure of the controller In addition, it is possible to provide a radiation image capturing system that is highly resistant to operation and has high operational reliability.

  At this time, all the two-dimensional radiation detection apparatuses and controllers connected to each other refer to the uniquely arranged database, so that the correction processing of the entire system can be synchronized and an unnecessary communication procedure can be omitted.

  Embodiments of the present invention will be described below. The present invention is not limited to the embodiments described below. In addition, although there is a description explaining the meaning of the terms in the following description, the meaning of the terms in the embodiments is described only, and the meaning of the terms of the present invention is not limited to this description.

Embodiment FIG. 1 is a diagram showing an embodiment of a radiographic imaging system of the present invention. In FIG. 1, the radiation generator 30 is controlled by the control unit 10 including the database function 11, and the radiation emitted from the radiation generator 30 passes through the subject 5 and includes the imaging panel 41-1. 40-1 is irradiated.

  FIG. 2 shows a configuration of the image pickup panel 41. The image pickup panel 41 includes a dielectric substrate 411 having a thickness sufficient to obtain a predetermined rigidity. This dielectric substrate is made of, for example, glass. A plurality of microplates 412-(1, 1) to 412-(m, n) using a metal thin film are two-dimensionally arranged on the dielectric substrate 411. Between the microplates 412, scanning lines 415-1 to 415-m and signal lines 416-1 to 416-n are disposed so as to be orthogonal, for example. One transistor 420- (1,1) is connected to the microplate 412- (1,1). For example, a field effect transistor is used as the transistor 420- (1, 1), and the drain electrode or the source electrode is connected to the microplate 412- (1, 1), and the gate electrode is the scanning line 415-1. Connected. When the drain electrode is connected to the microplate 412- (1,1), the source electrode is connected to the signal line 416-1. When the source electrode is connected to the microplate 412- (1,1), the drain electrode is connected to the signal line 416-1. Connected to line 416-1. The microplate 412-(1, 1) is one electrode of the charge storage capacitor 422-1. In this way, one pixel is formed. Similarly, the transistor 420 is connected to the other microplate 412, the scanning line 415 is connected to the gate electrode of the transistor 420, and the signal line 416 is connected to the source electrode or the drain electrode.

  FIG. 3 shows a partial cross-sectional view of the imaging panel 41, and a gate electrode 420 g connected to the scanning line 415 is formed on the dielectric substrate 411. A gate insulating film 420p is formed on the gate electrode 420g, and a semiconductor layer 420c using amorphous silicon or the like is formed on the gate insulating film 420p. A source electrode 420s and a drain electrode 420d are formed on the semiconductor layer 420c to form a field effect transistor. One of the source electrode 420 s or the drain electrode 420 d is connected to the signal line 416 and the other electrode is connected to the microplate 412.

  An electrode 422a as an external microplate is formed on the dielectric substrate 411, and a dielectric 422b such as silicon dioxide or silicon nitride is formed on the electrode. Further, the microplate 412 is formed as an electrode on the dielectric 422b, and the charge storage capacitor 422 is formed by the microplate 412, the electrode 422a, and the dielectric 422b. The microplate 412 formed on the dielectric 422b of the charge storage capacitor 422 is connected to the electrode of the transistor 420, and the electrode 422a formed on the dielectric substrate 411 is grounded.

  The transistor 420 is covered with a passivation layer 425 and a charge blocking layer 426 is formed on the electrode of the charge storage capacitor 422 and on the microplate 412 (not shown).

  Further, on the passivation layer 425, the charge blocking layer 426, the scanning line 415 (not shown), and the signal line 416 (not shown), electron-hole pairs are generated by irradiating with radiation, resulting in a resistance value. A photoconductive layer 427 that changes is formed. The photoconductive layer 427 preferably has a high dark resistance value, and includes amorphous selenium, lead oxide, cadmium sulfide, mercuric iodide, or an organic material exhibiting photoconductivity (photoconductivity with an X-ray absorption compound added thereto). In particular, amorphous selenium is desirable. A dielectric layer 428 is preferably formed on the photoconductive layer 427, and a bias electrode 429 is formed on the dielectric layer 428.

  Here, when radiation is incident on the photoconductive layer 427 in a state where a high voltage (for example, plus several kV) is applied to the bias electrode 429, an amount of electron-hole pairs corresponding to the intensity of the radiation is generated. At the same time, since a positive high voltage is applied to the bias electrode 429, the generated charge is moved to the dielectric layer 428 side, and the charge having the opposite polarity is moved to the charge blocking layer 426 side. . In addition, the dielectric layer 428 prevents charge injection from the bias electrode 429 to the photoconductive layer 427, and the charge blocking layer 426 blocks charge injection from the electrode of the charge storage capacitor 422 to the photoconductive layer 427. . For this reason, it is possible to prevent a leakage current from flowing through the photoconductive layer 427, and an amount of electric charge corresponding to the intensity of radiation can be stored in the charge storage capacitor 422.

In this way, the charge storage capacitors 422- (1,1) to 422- (m, n) having the microplates 412- (1,1) to 412- (m, n) shown in FIG. 2 as one electrode. ) Can be stored, and image data can be generated by determining the amount of charge stored in the charge storage capacitors 422- (1, 1) to 422- (m, n). it can.
Further, in the imaging panel 41, reset operation transistors 432-1 to 432-n, for example, connected to drain electrodes are provided on the signal lines 416-1 to 416-n. The source electrodes of the transistors 432-1 to 432-n are grounded. The gate electrode is connected to the reset line 431.

  The scanning lines 415-1 to 415-m and the reset line 431 of the imaging panel 41 are connected to the scanning drive circuit 44 as shown in FIG. When the charge reading signal RS is supplied from the scanning drive circuit 44 to one of the scanning lines 415-1 to 415-m, the scanning line 415-p (p is any value of 1 to m), this scanning line Transistors 420- (p, 1) to 420- (p, n) connected to 415-p are turned on and stored in charge storage capacitors 422- (p, 1) to 422- (p, n). The charged charges are read out to the signal lines 416-1 to 416-n, respectively. The signal lines 416-1 to 416-n are connected to the charge detectors 433-1 to 433-n, and the charge detectors 433-1 to 433-n read on the signal lines 416-1 to 416-n. Voltage signals SV-1 to SV-n that are proportional to the amount of charge that has been output are generated. Voltage signals SV-1 to SV-n output from the charge detectors 433-1 to 433-n are supplied to the signal selection circuit 46.

  A voltage signal is supplied to the signal selection circuit 46 from the charge detectors 433-1 to 433-n. In the signal selection circuit 46, the supplied voltage signal is sequentially selected, for example, as 12-bit to 14-bit digital data. This data is supplied to the reading control circuit 48 as image data DT. Note that in a state where a positive high voltage is applied to the bias electrode 429, a reset signal RT is supplied from the scanning drive circuit 44 to the reset line 431 to turn on the transistors 432-1 to 432-n and the scanning line 415. When the charge read signal RS is supplied to -1 to 415-m and the transistors 420- (1,1) to 420- (m, n) are turned on, the charge storage capacitors 422- (1,1) to 422- The charge stored in (m, n) is discharged through the transistors 432-1 to 432-n, so that the imaging panel 41 can be initialized, that is, the residual charge can be removed.

  However, the period from the residual charge removal processing to the irradiation of radiation to the imaging panel 41 (strictly, until the imaging is completed and the readout of the charged electric charge is completed) is proportional to the amount of irradiated radiation. Apart from the increasing charges, the generation of charges mainly due to the influence of the ambient temperature of the imaging panel 41 continues, and the amount of generated charges (corresponding to the offset value) that is not proportional to the radiation dose varies from pixel to pixel. The noise component increases mainly in a region where the amount of radiation transmitted through the subject is reduced, leading to deterioration in image quality.

  Therefore, a procedure for correcting the variation in pixel units including the correction of the offset value given as an example in the present embodiment will be described in more detail below with reference to FIG.

First, prior to the radiographing of the subject 5, the radiation generated by the radiation generator 30 in a state where the subject 5 is removed is removed from the unit charge (removal of the residual charge during the radiographing of the subject 5). (Corresponding to the time required for completion of reading) The two-dimensional radiation detection apparatus is irradiated, and gain correction data for each pixel is obtained from the signal value of each pixel generated at this time.
Further, offset correction data in the same pixel unit is obtained from the signal value of the pixel due to the charge generated without irradiation of radiation per the prescribed unit time. With the obtained gain correction data and offset correction data as a set, together with the identification information of the two-dimensional radiation detection apparatus 40-1 or the imaging panel 41-1, and the ambient temperature of the imaging panel 41-1 when the correction data is generated, Register in the database function 11. This operation is performed in advance for a plurality of ambient temperatures of the imaging panel 41-1.

When actually capturing a radiographic image of the subject 5, the primary radiographic image data obtained from the imaging panel 41-1 is most captured using the ambient temperature of the imaging panel 41-1 at the time of imaging as a search key. With reference to the correction data close to the current state, each process of offset correction and gain correction is performed.
As a more detailed processing flow after radiographic image capturing, the two-dimensional radiation detection apparatus 40-1 performs two-dimensional imaging with primary radiographic image data for displaying the controller 10 having a size smaller than that for diagnostic images immediately after radiographic image capturing. The identification information of the radiation detection device 40-1 or the imaging panel 41-1, and the correction data generation conditions (in this case, the ambient temperature of the imaging panel at the time of generation) are transmitted to the controller 10, and the controller 10 receives the two-dimensional radiation detection device. Using the identification information 40-1 or the imaging panel 41-1 and the correction data generation condition as an access key, the correction data is retrieved from the database function 11, and the correction processing and display of the primary radiation image data for display on the controller 10 are performed. Do.

  The two-dimensional radiation detection apparatus 40-1 generates the identification information of the two-dimensional radiation detection apparatus 40-1 or the imaging panel 41-1, and the correction data generation conditions after transmitting the primary radiation image data for display on the controller 10. As an access key, the correction data is retrieved from the database function 11 to perform the correction process of the primary radiation image data for diagnosis and the transmission of the diagnostic image data to the controller 10. At this time, the correction data selected from the database function 11 is, of course, gain correction data and offset correction data generated in a state closest to the ambient temperature of the imaging panel 41-1 at the time of radiographic image capturing.

  The present invention can be applied to a radiographic imaging system including a two-dimensional radiation detection apparatus that outputs digitized image data and a controller that receives and displays the image data.

It is a figure which shows the structure of a radiographic imaging system. It is a figure which shows the structure of an imaging panel. It is a partial cross section figure of an imaging panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Controller 11 Database function 30 Radiation generator 40 Two-dimensional radiation detection apparatus 41 Imaging panel 44 Scan drive circuit 46 Signal selection circuit 48 Reading control circuit

Claims (10)

A two-dimensional radiation detection apparatus that detects radiation transmitted through a subject; a controller that receives and displays radiation image data transmitted by the two-dimensional radiation detection apparatus; and primary radiation image data detected by the two-dimensional radiation detection apparatus. A radiographic imaging system comprising a database function for registering correction data generated by at least one of the two-dimensional radiation detection apparatus and the controller used for correction processing,
The two-dimensional radiation detection apparatus and the controller, using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus of the radiation image data as an access key, Means for registering and retrieving the correction data in a database function;
At the time of radiographic imaging, at least one of the two-dimensional radiation detection device and the controller performs correction processing of the primary radiographic image data using the correction data retrieved from the database by the access key. A featured radiographic imaging system. The generation conditions of the correction data are the generation time when the correction data is generated by the two-dimensional radiation detection apparatus, the elapsed time since the activation of the two-dimensional radiation detection apparatus, and the environment inside the two-dimensional radiation detection apparatus Consisting of at least one of the temperatures,
When searching for the correction data during radiographic imaging, the generation time closest to the radiographic imaging time or the elapsed time from the start of the two-dimensional radiation detection device to the radiographic imaging is the correction data generation The ambient temperature within the two-dimensional radiation detection apparatus at the time of radiographic image capture is the closest value in the elapsed time from the start of the two-dimensional radiation detection apparatus at the time of the correction data generation The radiographic image capturing system according to claim 1, wherein the correction data is searched by selecting the closest one of the environmental temperatures inside the two-dimensional radiation detection apparatus. 3. The correction data according to claim 1, wherein the correction data includes at least one of offset correction data and gain correction data of primary radiation image data detected by the two-dimensional radiation detection apparatus. The radiographic imaging system described. 4. The correction data according to any one of claims 1 to 3, wherein the correction data includes two pieces of correction data for a display image of the controller and correction data for a diagnostic image with respect to one piece of the radiation image data. The radiographic imaging system of Claim 1. The two-dimensional radiation detection apparatus, when taking a radiographic image, together with primary radiation image data for displaying the controller having a size smaller than that for the diagnostic image, identification information of the two-dimensional radiation detection apparatus, and correction data Transmitting at least one of generation conditions and identification information of the output device to the controller;
The controller retrieves the correction data from the database using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus as an access key, and the controller Correction and display of primary radiation image data for display,
In addition, after the transmission of the primary radiation image data for display on the controller, the two-dimensional radiation detection device includes identification information of the two-dimensional radiation detection device, generation conditions of the correction data, and identification information of the output device. 2. The correction data is searched from the database by using at least one access key, and correction processing of the diagnostic primary radiation image data and transmission of the diagnostic image data to the controller are performed. The radiographic imaging system of any one of Claim 4 thru | or 4. The two-dimensional radiation detection apparatus, when taking a radiographic image, together with primary radiation image data for displaying the controller having a size smaller than that for the diagnostic image, identification information of the two-dimensional radiation detection apparatus, and correction data Transmitting at least one of generation conditions and identification information of the output device to the controller;
The controller searches the correction data for the display image from the database using at least one of the identification information of the two-dimensional radiation detection apparatus, the generation condition of the correction data, and the identification information of the output apparatus as an access key. And correction processing and display of the primary radiation image data for the controller display,
In addition, the two-dimensional radiation detection apparatus transmits the primary radiation image data for diagnosis to the controller after transmitting the primary radiation image data for display of the controller,
Further, the controller uses the at least one of the identification information of the two-dimensional radiation detection device, the generation condition of the correction data, and the identification information of the output device as an access key from the database for correction data for the diagnostic image. The radiographic image capturing system according to claim 1, wherein the correction processing is performed on the received primary radiographic image data for diagnosis. The radiographic imaging system according to claim 5, wherein correction processing is not performed on the display image of the controller. 8. The radiographic image capturing system according to claim 1, wherein the database function is included in at least one of the two-dimensional radiation detection apparatus and the controller. 9. The radiographic imaging system according to claim 1, wherein the two-dimensional radiation detection apparatus includes a plurality of units. The radiographic imaging system according to claim 1, wherein the controller includes a plurality of units.

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