JP7052235B2 - Radiation imaging device and radiation imaging system - Google Patents

Description

The present invention relates to a radiographic imaging apparatus and a radiographic imaging system including the apparatus.

In recent years, a portable radiographic imaging system has been developed. This portable radiation imaging system can be composed of a panel-shaped radiation imaging device (also called FPD (Flat Panel Detector)), a round-trip car loaded with a radiation irradiation device, a notebook PC, and the like. It is generally composed of a portable console or the like. By using this system, a user (radiologist or the like) can take the system to the imaging site and perform a series of operations such as imaging and image confirmation on the spot. Therefore, it is possible to easily take a radiographic image of a patient who is difficult to move.

However, since the portable radiographic imaging system is expensive, it is a barrier to its introduction in small hospitals and the like where the number of imaging is small. Therefore, attempts have been made to reduce the manufacturing cost of the system by using a widely used mobile terminal such as a smartphone or a tablet terminal instead of the dedicated portable console.
However, there is often a difference in image processing capability between mobile terminals and consoles. Therefore, for example, depending on the image processing capability of the console and the mobile terminal, a normal shooting mode in which the image data output by the radiographic image shooting device is transmitted to the console without being held by the mobile terminal, and the image data are transmitted to the mobile terminal. A technique (see Patent Document 1) has been proposed in which a memory mode for storing data and performing simple image processing for preview on a mobile terminal is exclusively selected.

Japanese Unexamined Patent Publication No. 2016-147044

In the radiation imaging system described in Patent Document 1, only the console can display the processed image that has undergone full-scale image processing, and the mobile terminal displays only the preview image with low image quality. I can't. For this reason, when this system is carried to a place away from the console for shooting and image confirmation, re-shooting is determined based on the preview image, so re-shooting is performed compared to the case with a portable console. There is a problem that the judgment accuracy of is lowered.
Further, in the radiographic imaging system described in Patent Document 1, since the processed image can be confirmed only on the console, for example, in the operating room, the doctor confirms the processed image on the spot where the image is taken, and whether or not the operation is possible and the operation are performed. There is also the problem that it is not possible to deal with cases such as when deciding a policy.

The present invention has been made in view of the above problems, and in a radiographic imaging system using a mobile terminal instead of a portable console, a high-quality radiographic image that can be used for diagnosis can be obtained according to a user's request. The challenge is to enable quick display on mobile terminals.

In order to solve the above problems, the radiographic imaging apparatus according to the present invention is used.
A radiation detection unit having a substrate in which a plurality of radiation detection elements that accumulate an amount of charge corresponding to the dose of radiation by receiving radiation are arranged in a two-dimensional manner, and a radiation detection unit.
A readout unit that reads out the amount of charge accumulated in each of the plurality of radiation detection elements as a signal value and generates first image data based on each signal value.
An image processing means that executes predetermined image processing on the first image data generated by the reading unit and generates at least one type of second image data.
A storage means for storing at least one of the first image data generated by the reading unit and the second image data generated by the image processing means.
A communication means for transmitting at least one of the first image data and the second image data to the external terminal in response to a request from the external terminal.
A determination means for determining the processing performance of the external terminal and
A selection means for selecting whether or not to execute the predetermined image processing by itself based on the determination result of the determination means is provided.
The communication means is adapted to transmit a processing program for executing the predetermined image processing to the external terminal when the selection means selects not to execute the predetermined image processing by itself.
The processing program is characterized in that it includes a processing for erasing image data or parameters stored in the external terminal based on an operation of ending a browser or ending shooting .

According to the present invention, a high-quality radiographic image that can be used for diagnosis can be quickly displayed on a mobile terminal in response to a user's request.

It is a schematic block diagram of the radiation imaging system which concerns on embodiment of this invention. It is a block diagram which shows the structure of the radiographic image taking apparatus which constitutes the radiographic image taking system of FIG. 1. FIG. 3 is a block diagram showing a configuration of a mobile terminal constituting the radiographic imaging system of FIG. 1. This is an example of the main screen displayed on the display unit of the mobile terminal of FIG. It is a ladder chart which shows the operation of the radiographic image taking system of FIG. It is a ladder chart which shows the operation of the radiographic image taking system of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. However, the scope of the invention is not limited to the illustrated examples.

[Configuration of radiation imaging system]
First, the configuration of the radiographic imaging system 100 according to the present embodiment will be described. FIG. 1 is a schematic configuration diagram of the radiographic imaging system 100 of the present embodiment.
As shown in FIG. 1, the radiation imaging system 100 of the present embodiment includes a radiation irradiation device 1, a radiation imaging device 2, a mobile terminal 3, a console 4, and the like.
Further, the radiographic imaging system 100 is connected to a radiological information system (RIS), a picture archiving and communication system (PACS), or the like, if necessary.

The radiation irradiation device 1 includes a generator 11, a radiation source 12, an operation console 13, and the like.
The generator 11 applies a voltage corresponding to the tube voltage, tube current, irradiation time (mAs value), etc. set by the console 4 to the radiation source 12.
The radiation source 12 has a rotating anode (not shown) capable of generating radiation, a filament that irradiates the rotating anode with an electron beam, and the like, and generates a dose of radiation X corresponding to the voltage applied from the generator 11.
The operation console 13 is provided with an exposure switch that can be operated by a user (radiologist or the like). Then, the operation console 13 instructs the generator 11 to start irradiation (application of voltage) or the like based on the operation of the exposure switch.
The radiation irradiation device 1 may be incorporated in a round-trip vehicle and configured to be movable.

The radiation imaging device 2 is configured to read out image data when it receives radiation from the radiation irradiation device 1. Then, the read image data (Raw image data, processed image data, etc.) is transmitted to the mobile terminal 3 or the console 4.
The radiation imaging apparatus 2 may be a dedicated machine type integrated with an imaging table or a portable type (cassette type), but when the radiation irradiation apparatus 1 is configured to be movable, it does not matter. , It is preferable to make it portable.
The details of the radiation image capturing apparatus 2 will be described later.

The mobile terminal 3 is for confirming a radiation image taken by a radiation image capturing device 2 instead of the conventional portable console, and forms an external terminal in the present invention. The configuration of the mobile terminal 3 is not particularly limited, but it is preferable to configure the mobile terminal 3 with a portable terminal such as a commercially available smartphone or tablet terminal that can be carried.
The mobile terminal 3 is communicably connected to one or more radiographic image capturing devices 2 via a communication network, and can display a display image based on image data transmitted from the radiographic image capturing device 2. ing.
The details of the mobile terminal 3 will be described later.

The console 4 is a stationary type different from the portable console, and is connected to the radiation irradiation device 1 and the radiation imaging device 2 and the like so as to be communicable by wire or wirelessly.
Then, the console 4 has various shooting conditions (for example, conditions related to the subject such as a part to be shot) of the radiation irradiation device 1 and the radiation image shooting device 2 based on a shooting order from an external device (RIS or the like) or an operation by the user. , Conditions related to radiation irradiation such as tube voltage, tube current, and irradiation time) can be set.

[Structure of radiation imaging device]
Next, the details of the radiographic imaging apparatus 2 constituting the radiographic imaging system 100 will be described. FIG. 2 is a block diagram of the radiation imaging apparatus 2.
As shown in FIG. 2, the radiation imaging apparatus 2 includes a control unit 21, a radiation detection unit 22, a reading unit 23, a communication unit 24, a storage unit 25, and the like, and each unit 21 to 25 is configured. It is connected by bus 26. Further, electric power is supplied to each unit 21 to 25 from a built-in power supply (not shown).

The control unit 21 is configured to comprehensively control the operation of each unit of the radiation imaging apparatus 2 with a CPU, RAM, or the like. Specifically, the storage unit 25 is stored based on the fact that the power switch is turned on, that a predetermined control signal is received from the radiation irradiation device 1 or the console 4, that radiation is received from the radiation irradiation device 1, and the like. Various stored processing programs are read out and expanded in RAM, and various processing is executed according to the processing program.

The radiation detection unit 22 may have a substrate in which a plurality of radiation detection elements that accumulate an amount of charge corresponding to the dose of radiation by receiving radiation have a substrate arranged in a two-dimensional manner, and conventionally known ones may be used. Can be used.
That is, the radiation imaging device 2 may be a so-called indirect type that includes a scintillator and detects the light emitted by the scintillator receiving radiation, or the so-called direct detection of radiation without going through a scintillator or the like. It may be a direct type.
Further, the radiation imaging device 2 may be of a cooperative system that starts the accumulation of charge based on the signal from the radiation irradiation device 1, or may irradiate the radiation by itself without the signal from the radiation irradiation device 1. It may be a non-cooperative method that detects and starts the accumulation of charge.

The reading unit 23 may be configured to be able to read out the amount of charge accumulated in each of the plurality of radiation detection elements as a signal value and generate Raw image data based on each signal value, which is conventionally known. Can be used.

The communication unit 24 is configured by a network interface or the like, and transmits / receives data to / from an external device connected via a communication network such as a LAN (Local Area Network), a WAN (Wide Area Network), or the Internet.

The storage unit 25 is composed of an HDD (Hard Disk Drive), a semiconductor memory, or the like, and stores various processing programs including various image processing programs, parameters and files necessary for executing the programs, and the like.
Further, the storage unit 25 has a database for managing the generated Raw image data and various image data of the radiation image transmitted from the mobile terminal 3. Predetermined incidental information such as a patient name, an examination type, and a date is attached to each image data, and it is possible to identify each image data.

The control unit 21 of the radiation imaging apparatus 2 configured in this way operates as follows according to the processing program stored in the storage unit 25.
For example, the control unit 21 may use the Raw generated by the readout unit 23 as needed (for example, when the radiation image capturing system 100 is set by the user to perform image processing on the radiation image capturing device 2). It is possible to perform predetermined image processing on the image data and generate at least one type of processed image data. That is, the control unit 21 serves as the image processing means in the present invention.

The image processing executed here is a process for generating a diagnostic image used by a doctor for diagnosis, such as scattered radiation reduction processing, noise reduction processing, frequency processing, gradation processing, spatial conversion (rotation / inversion), and the like. There are different types. When a plurality of types of image processing are applied to one image data, processed image data (for example, noise reduction processed image data, frequency processed image data, etc.) is generated for each applied image processing. do. It is also possible to further perform image processing on the processed image data.

Further, the control unit 21 can transmit various image processing programs to the outside (portable terminal 3) by using the communication unit 24 as needed.
Further, the control unit 21 can use the communication unit 24 to transmit at least one of various image data to the outside (portable terminal 3). Specifically, in response to a request from the mobile terminal 3, at least one of Raw image data and processed image data can be transmitted to the mobile terminal 3, and various types received from the mobile terminal 3 can be transmitted. It is possible to receive image data (processed image data and adjusted image data). That is, the control unit 21 and the communication unit 24 form the communication means in the present invention.

The processed image data to be transmitted may be selected based on the request from the mobile terminal 3, the image processing to be applied, the combination information of the target data, and the like. For example, when a request is made from the mobile terminal 3 to add correction processing to the processed image data that has undergone specific image processing, the processed image data that has undergone image processing one step before the specific image processing. Is to be sent.

Further, for example, the control unit 21 is provided with a function of determining the processing performance of the mobile terminal 3, and whether or not to execute a predetermined image processing by itself is determined based on the determination result, not by the setting by the user. You may choose. Specifically, when the processing performance of the radiographic image capturing device 2 and the mobile terminal 3 are compared and it is determined that the processing performance of the mobile terminal 3 is higher (it is selected not to execute the predetermined image processing by itself). , The image processing program is transmitted to the mobile terminal 3. In this case, the control unit 21 serves as a determination means and a selection means in the present invention. Further, in such a case, the mobile terminal 3 is provided with a function of receiving the measurement result from the mobile terminal 3, and the processing program to be transmitted is used to execute the process of causing the mobile terminal 3 to measure the performance of self-confidence. To include.

Further, the control unit 21 basically performs either image processing or transmission of image processing data, but these operations are performed as necessary as described above, for example. Of the plurality of image processes, those that do not depend on the processing order can be shared by the radiographic image capturing apparatus 2 and the portable terminal 3 to execute different image processes in parallel.

Further, the control unit 21 includes Raw image data generated by the reading unit 23, processed image data generated by the user performing image processing by itself, and various image data (processed image data) received by the communication unit 24 from the mobile terminal 3. And at least one of the adjusted image data) can be stored in the storage unit 25. That is, the control unit 21 and the storage unit 25 form the storage means in the present invention. As described above, when a plurality of types of image processing are performed on one image data, a plurality of types of processed image data are generated, and these are collectively stored.

When storing the processed image data, the parameters to which the processing is applied may also be stored. By doing so, when it becomes necessary to perform image processing on the same image data again, the processing can be performed quickly.
Further, among the processed image data, those having a low processing cost may not be stored in the storage unit 25, but only the parameters used for the processing may be stored. This is because there are cases where it is not so troublesome to perform image processing each time when compared with the one having a high processing cost, and in this way, the capacity of the storage unit 25 of the radiation imaging apparatus 2 is increased. Can be saved.

[Configuration of mobile terminal]
Next, the details of the mobile terminal 3 constituting the radiation imaging system 100 will be described. FIG. 3 is a block diagram showing the configuration of the mobile terminal 3, and FIG. 4 is an example of a screen displayed by the mobile terminal.
As shown in FIG. 3, the mobile terminal 3 includes a control unit 31, a communication unit 32, a storage unit 33, a display unit 34, an operation unit 35, and the like, and each unit 31 to 35 is composed of a bus 36. It is connected. Further, electric power is supplied to each unit 31 to 35 from a built-in power supply (not shown).

The control unit 31 is configured to comprehensively control the operation of each unit of the mobile terminal 3 with a CPU, RAM, or the like. Specifically, the RAM reads out various processing programs stored in the storage unit 33 based on the input of the operation signal from the operation unit 35 and the reception of various signals and data from the radiographic image capturing device 2. , Various processes are executed according to the process program, and the display contents of the display unit 34 are controlled.

The communication unit 32 is configured by a network interface or the like, and transmits / receives data to / from an external device connected via a communication network such as a LAN, WAN, or the Internet. The communication unit 32 may perform wireless communication using a mobile phone line or the like, and may transmit / receive data to / from an external device connected via a communication network.

The storage unit 33 is composed of an HDD (Hard Disk Drive), a semiconductor memory, or the like, and stores various processing programs, parameters, files, and the like necessary for executing the program.
Further, the storage unit 25 can store various image data (processed image data) of the radiation image transmitted from the radiation image capturing apparatus 2 and a processing program including various image processing programs.

The display unit 34 is configured to include a monitor such as an LCD, and displays various screens according to instructions of display signals input from the control unit 31.

The operation unit 35 is configured to include a pointing device such as a keyboard or mouse equipped with various keys, or a touch panel laminated on the display unit 34, depending on the position of a key operation or mouse operation on the keyboard or a touch operation on the touch panel. The input operation signal is output to the control unit 31.

The control unit 31 of the mobile terminal 3 configured in this way operates as follows by receiving Raw image data and various processing programs from the radiographic image capturing device 2.
For example, the control unit 31 can perform image processing on Raw image data or processed data using the received image processing program. That is, the radiation image capturing system 100 according to the present embodiment can perform image processing on either the radiation image capturing device 2 or the portable terminal 3.
If the processing program includes a process for measuring the processing performance of the mobile terminal 3, the processing performance of the mobile terminal 3 is measured and the result is transmitted to the radiographic imaging apparatus 2.

Further, the control unit 31 stores at least one of the Raw image data and the processed image data received by the communication unit 32 and the processed image data generated by the control unit 31 in the storage unit 33. It becomes possible.

Further, the control unit 31 can cause the display unit 34 to display the main screen M having the display area R of the display image I in the central portion, as shown in FIG. 4, for example.
Further, the control unit 31 has various display images I (Raw image, processed) based on the Raw image data received by the communication unit 32, the processed image data, or the processed image data generated by the control unit 31 itself. Images, preview images, etc.) can be displayed in the display area R (display unit 34) of the main screen M.

The main screen M and the display image I displayed therein may be displayed by a console application separately installed on the mobile terminal 3, but may be displayed by the browser originally possessed by the mobile terminal 3. It is preferable to do. When a browser is used, the data to be processed and the processing program are transmitted in the flow of a series of shooting operations, so that it is not necessary to explicitly install an application or the like on the mobile terminal 3. As a result, since only a specific processing program is stored, the transmission time of the processing program can be shortened as compared with the case where all the console applications are transmitted. Further, even if the mobile terminal 3 fails, the battery runs out, or the like, another general mobile terminal can be used as a substitute. Further, maintenance such as updating the application of the mobile terminal 3 accompanying the update of the program of the console 4 and the radiographic image capturing device 2 becomes unnecessary.
The processing program can also be used as web content and transmitted to the mobile terminal 3. In that case, it is desirable to use JavaScript (registered trademark) or WebAssembly format that can be executed on a web browser.

When displaying the image I for display on the browser, it is necessary to make the radiation image capturing device 2 function as a web server. Therefore, the storage unit 25 of the radiation imaging device 2 stores a web server program, a web application program, and the like. Will let you.
Further, when the display image I is displayed on the browser, the radiation image capturing device 2 generates the web content of the display image I from the image data in response to the request from the mobile terminal 3, and the mobile terminal generates the web content of the display image I. It will be transmitted to 3. In this case, the control unit 21 serves as the content generation means in the present invention.

Further, if necessary, the processing program to be transmitted from the radiographic image capturing device 2 to the mobile terminal 3 includes gain correction, offset correction, defect correction, etc. for the Raw image data or the processed image data received from the radiographic image capturing device. A process for providing a function for performing image correction may be included. By doing so, it is possible to correct individual differences in image data generated for each radiographic image capturing device 2. These image corrections may be performed by the radiation imaging apparatus 2.
Further, the processing program may include a processing in which the processing program once acquired is cached in the browser, or the processing program is reacquired only when the version is different. By doing so, when the same image processing is performed, it is not necessary to receive the processing program, which is preferable from the viewpoint of speeding up the display.

Further, the processing program may include a process of omitting a part of the image processing to be executed or returning the execution of a part of the processing to the radiographic imaging apparatus 2 depending on the importance of the processing and the processing cost. good. By doing so, it is possible to prevent an excessive load from being applied to the control unit 31 of the mobile terminal 3.
Further, the processing program may include a process of erasing the image data and parameters stored in the storage unit 33 based on the operation of terminating the browser or terminating the shooting. This is preferable from the viewpoint of security because the personal information of the patient does not remain on the mobile terminal 3 after the shooting is completed.

[Operation of radiation imaging system]
Next, the operation of the radiation imaging system 100 will be described.
FIG. 5 is a ladder chart showing the flow from radiographic image capture to display using the radiographic image capturing system 100 and showing the flow when image processing is performed by the mobile terminal 3, and FIG. 6 is a radiation image capturing apparatus 2. It is a ladder chart showing the flow when performing image processing.

First, the operation when the image processing is set to be performed on the mobile terminal 3 side will be described. As shown in FIG. 5, when the user instructs the display start of the main screen M via the operation unit 35 of the mobile terminal 3 (step S1), the mobile terminal 3 displays the main screen M on the display unit 34 (step S1). Step S2).
When the main screen M is displayed on the browser, after step S1, the mobile terminal 3 transmits a signal requesting the web page of the main screen M to the radiographic image capturing device 2 (step S1a). Then, the radiation imaging apparatus 2 generates a web page (step S1b) and transmits it to the mobile terminal 3 (step S1c), whereby the display of the main screen M is started.

Further, in parallel with or before and after steps S1 to S2, the radiographic image capturing apparatus 2 takes a radiographic image (step S3), and stores the generated Raw image data in the storage unit 25 (step S4).
When the user instructs the display of the processed image via the operation unit 35 of the mobile terminal 3 at a timing after step S3 (step S5), the mobile terminal 3 requests the radiation image capturing device 2 for Raw image data. Is transmitted (step S6). Then, the radiation image capturing device 2 transmits the image processing program to the mobile terminal 3 (step S7), and further transmits the Raw image data to the mobile terminal 3 (step S8).
The raw image capturing device 2 may be configured to divide the Raw image data into, for example, an image thinned to a low resolution and the remaining image of the Raw image and transmit the raw image data a plurality of times, or the monitor resolution of the mobile terminal 3 is low. In some cases, the configuration may be such that only the thinned image is transmitted. This makes it possible to display the image after shooting at a higher speed.
Further, step S4 may be performed in parallel with step S7 or step S8, or may be performed after step S7 or step S8.

After that, when the mobile terminal 3 receives the Raw image data and the image processing program, the mobile terminal 3 performs predetermined image processing on the Raw image data (step S9). The processing here is to perform at least one type of image processing among the plurality of image processings described above. Then, the processed image data obtained by the image processing is stored in the storage unit 33 (step S10).
Then, the processed image based on the processed image data obtained by the image processing is displayed on the display unit 34 (step S11), and the processed image data is transmitted to the radiation image capturing apparatus 2 (step S12).

In addition, steps S10 and S11 may be performed in parallel, or the order may be reversed.
Further, instead of performing step S12 after completely completing steps S8 to S11, each process of steps S8 to S11 may be repeated in a plurality of times. That is, in step S8, a part of the Raw image data is once transmitted, steps S9 to S11 are performed on the part of the Raw image data, and then the process returns to step S8 and the remaining Raw image data is transmitted. (Step S8), and steps S9 to S11 may be repeated again.

After that, when the radiographic image capturing apparatus 2 receives the processed image data, the radiographic imaging apparatus 2 stores it in the storage unit 33 (step S13).
In this way, the processed image data is stored in the radiographic image capturing device 2, so that when the mobile terminal 3 wants to check the processed image, the image data is acquired up to the console 4 installed in another place. Since the processed image can be displayed without returning to, the processed image can be displayed quickly.

By the way, steps S5 to S13 may be repeated a plurality of times in some cases (for example, when a user tries to compare different types of processed images). In such a case, in step S8, the radiographic image capturing apparatus 2 calls the processed image data generated by the image processing performed by the mobile terminal 3 and stored in the storage unit 25, and carries the data instead of the Raw image data. It can also be transmitted to the terminal 3. By doing so, the received processed image data can be displayed as it is, or image processing can be performed based on the processed image data. Therefore, every time a display request for the processed image is made, the Raw image can be displayed. It is possible to display the processed image desired by the user more quickly than performing image processing from the data.

In addition, the user who has confirmed the processed image may determine that the image needs to be adjusted. In such a case, when the user instructs the processed image to adjust the image via the operation unit 35 of the mobile terminal 3 (step S12a), the mobile terminal 3 receives the update of the adjustment parameter and receives the updated image data of the processed image. Reprocessing (adjustment) is performed (step S12b). Then, the adjusted image based on the adjusted image data obtained by the image adjustment is displayed on the display unit 34 (step S12c), the adjusted image data is transmitted to the radiographic image capturing apparatus 2 (step S12d), and step S13. Proceed to.

When the user who has finished confirming the processed image or the adjusted image instructs the end of the main screen M via the operation unit 35 of the mobile terminal 3 (step S14), the mobile terminal 3 is displayed on the display unit 34. Close the main screen M (step S15). When the mobile terminal 3 has an image data erasing function, after step S15, the Raw image data, the processed image data, and the adjusted image data stored in the storage unit 33 are deleted (step). S15a). By doing so, even if the mobile terminal 3 is stolen or lost, patient information will not be leaked, which is preferable from the viewpoint of security. Even in this case, since the processed image is left in the radiographic image capturing apparatus 2, the speed of subsequent display is not impaired.
Various image data stored in the radiographic image capturing apparatus 2 are moved to the room in which the console 4 is installed (the front room of the photographing room, etc.) and then moved to the console 4.
Although various image data are transmitted from the radiographic image capturing device 2 to the console 4 here, the mobile terminal 3 may be configured to transmit the various image data to the console 4.

At this time, the adjustment parameter may be transmitted to the console 4 together with the processed data, and the adjustment work may be continued on the console 4.
Further, when only the thinned image is transmitted from the radiation image capturing device 2 to the mobile terminal 3, the image processing may be applied to the full-size image based on the adjustment parameter received by the console 4.
Further, when the console 4 is provided with a function of comparing its own processing program with the processing program of the radiographic imaging apparatus 2, and it is determined that the processing program of the radiographic imaging apparatus 2 is older, it is determined. The processing program owned by the user may be transmitted to the radiographic imaging apparatus 2 to update the processing program in the radiographic imaging apparatus 2.

Next, the operation when the image processing is set to be performed on the radiation imaging apparatus 2 side will be described. As shown in FIG. 6, the flow from the start to step S5 is the same as in the case of performing image processing on the mobile terminal 3.
After step S5, the mobile terminal 3 transmits a signal requesting the processed image data to the radiographic image capturing apparatus 2 (step S6A). Then, the radiation image capturing apparatus 2 performs predetermined image processing on the Raw image data (step S7A), and transmits the processed image data obtained by the image processing to the mobile terminal 3 (step S8A). Here, the Raw image can be transmitted as it is.
Further, the processed image data is stored in the storage unit 25 in parallel with or before and after step S8A (step S13A).

After step S8A, when the mobile terminal 3 receives the processed image data, the mobile terminal 3 displays the processed image based on the processed image data on the display unit 34 (step S11).

By the way, even when the image processing is performed by the radiation image capturing apparatus 2, steps S5 to S13A may be repeated a plurality of times according to the user's request. In such a case, in step S7A, the radiation image capturing apparatus 2 calls the processed image data stored in the storage unit 25 in the past, and performs image processing on the processed image data instead of the Raw image data. In step S8A, the processed image data stored in the past can be transmitted as it is. By doing so, it is possible to quickly display the processed image desired by the user, as in the case of performing image processing on the mobile terminal 3.

Further, even in this case, the user who has confirmed the processed image may determine that the image needs to be adjusted. In such a case, when the user instructs the image adjustment for the processed image via the operation unit 35 of the mobile terminal 3 (step S12a), the mobile terminal 3 transmits the adjustment parameter to the radiation imaging device 2 (step). S12e). Then, the radiation imaging apparatus 2 reprocesses (adjusts) the processed image data using the adjustment parameters (step S12f). Then, the adjusted image data obtained by the image adjustment is transmitted to the mobile terminal 3 (step S12g). Further, the processed image data is stored in the storage unit 25 in parallel with or before and after step S12g (step S13A).
After the step S12g, when the mobile terminal 3 receives the adjusted image data, the mobile terminal 3 displays the adjusted image based on the adjusted image data on the display unit 34 (step S12c).
The flow after step S14 is the same as the case of performing image processing on the mobile terminal 3.

As described above, in the radiation imaging device 2 of the radiation imaging system 100 of the present embodiment, a plurality of radiation detection elements that accumulate an amount of charge corresponding to the dose of radiation by receiving radiation are arranged in a two-dimensional manner. A readout unit and a readout unit generated by reading out the amount of charge accumulated in each of the board and the plurality of radiation detection elements as signal values and generating Raw image data (first image data) based on each signal value. An image processing means capable of executing predetermined image processing on the image data and generating at least one type of processed image data (second image data), and a Raw image data and an image processing means generated by the reading unit are generated. At least of Raw image data and processed image data in response to a request from a storage means for storing at least one of the processed image data and a mobile terminal 3 (external terminal) connected communicably. A communication means for transmitting one to the mobile terminal 3 is provided.

By doing so, the radiographic image capturing device 2 itself performs image processing instead of the console 4 as in the conventional case, so even when shooting at a place away from the console 4, the mobile terminal 3 immediately after shooting. A display image I having a higher image quality than the preview image can be displayed on the display unit 34 of the above. For this reason, it is possible to prevent the system for determining re-shooting from being lowered.
Further, since a diagnostic image generated by performing various image processing can be displayed on the spot, a doctor can make a diagnosis on the spot in an operating room or the like.

100 Radiation imaging system 1 Radiation irradiation device 11 Generator 12 Radiation source 13 Operation console 2 Radiation imaging device 21 Control unit 22 Radiation detection unit 23 Reading unit 24 Communication unit 25 Storage unit 26 Bus 3 Portable terminal (external terminal)
31 Control unit 32 Communication unit 33 Storage unit 34 Display unit 35 Operation unit 36 Bus 4 Console I Display image M Main screen R Display area X Radiation

Claims (4)

A radiation detection unit having a substrate in which a plurality of radiation detection elements that accumulate an amount of charge corresponding to the dose of radiation by receiving radiation are arranged in a two-dimensional manner, and a radiation detection unit.
A readout unit that reads out the amount of charge accumulated in each of the plurality of radiation detection elements as a signal value and generates first image data based on each signal value.
An image processing means that executes predetermined image processing on the first image data generated by the reading unit and generates at least one type of second image data.
A storage means for storing at least one of the first image data generated by the reading unit and the second image data generated by the image processing means.
A communication means for transmitting at least one of the first image data and the second image data to the external terminal in response to a request from the external terminal.
A determination means for determining the processing performance of the external terminal and
A selection means for selecting whether or not to execute the predetermined image processing by itself based on the determination result of the determination means is provided.
The communication means is adapted to transmit a processing program for executing the predetermined image processing to the external terminal when the selection means selects not to execute the predetermined image processing by itself.
The radiation imaging apparatus, characterized in that the processing program includes a process of erasing image data or parameters stored in the external terminal based on an operation of terminating a browser or terminating imaging. The communication means receives the second image data transmitted from the external terminal and receives the second image data.
The radiographic imaging apparatus according to claim 1, wherein the storage means stores the second image data received from the external terminal. Equipped with content generation means to generate web content
The radiographic imaging apparatus according to claim 1 or 2, wherein the communication means transmits the web content generated by the content generation means to the external terminal in response to a request from the external terminal. The radiographic imaging apparatus according to any one of claims 1 to 3.
A radiographic imaging system comprising a display unit and an external terminal that communicates with the radiographic imaging apparatus.

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