JP7683201B2 - Mobile radiography device and program - Google Patents

Description

The present invention relates to a mobile radiography device and a program.

In order to observe and analyze video images captured by a radiography device using an external device, the video images must be output (transferred) to the external device. However, because video images contain a large amount of data, this output process takes a huge amount of time.

Therefore, for example, Patent Document 1 describes a method in which, among moving images captured by an X-ray diagnostic device (radiography device), frame images that meet predetermined conditions (e.g., end diastole of cardiac motion) are preferentially transmitted to an external device, and the remaining frame images are transmitted using free time.

JP 2009-240571 A

However, in Patent Document 1, the radiography device needs to be equipped with a process for determining whether each frame image of a moving image meets predetermined conditions, which is not suitable for an inexpensive system. In addition, in a mobile radiography device such as a medical cart, data communication with an external device is performed via wireless communication, but communication may become unstable due to wireless interference, obstructions, switching of wireless access points during movement, etc., and events such as increased output time or no output are anticipated in the output of moving images. As a result of the delay in video output, the output of still images to a PACS (Picture Archiving and Communication System), the acquisition of examination order information from a RIS (Radiology Information System), and the output of examination result information related to examination order information to the RIS may be delayed or stalled.

The present invention has been made in consideration of the above problems, and aims to prevent communication of captured still images and information related to examination order information with an external device from becoming stagnant or delayed due to output of captured moving images to an external device in a mobile radiography device.

In order to solve the above problems, a mobile radiography apparatus according to the present invention comprises:
A mobile radiography device capable of performing video imaging using radiation,
a control unit that prioritizes a second process of communicating information regarding the inspection order information with an external device through the wireless communication unit over a first process of outputting a moving image obtained by the moving image capturing to an external device through the wireless communication unit;
Equipped with
The control unit temporarily suspends the first process until all of the tests related to all of the test order information acquired in the second process are completed.

Further, the mobile radiographic imaging apparatus according to the present invention comprises:
A mobile radiography device capable of performing video imaging using radiation,
a control unit that prioritizes a second process of communicating information regarding the inspection order information with an external device through the wireless communication unit over a first process of outputting a moving image obtained by the moving image capturing to an external device through the wireless communication unit;
Equipped with
When new examination order information is obtained by the second process, if a moving image is being output by the first process, the control unit temporarily suspends the first process.

In addition, the program according to the present invention is
Computer,
a control unit that prioritizes a second process of communicating information regarding the examination order with an external device through a wireless communication unit over a first process of outputting a moving image obtained by moving image capture in the mobile radiation imaging device to the external device through the wireless communication unit;
Function as a
The control unit temporarily suspends the first process until all of the tests related to all of the test order information acquired in the second process are completed.

In addition, the program according to the present invention is
Computer,
a control unit that prioritizes a second process of communicating information regarding the examination order with an external device through a wireless communication unit over a first process of outputting a moving image obtained by moving image capture in the mobile radiation imaging device to the external device through the wireless communication unit;
Function as a
When new examination order information is obtained by the second process, if a moving image is being output by the first process, the control unit temporarily suspends the first process.

According to the present invention, in a mobile radiography device, outputting captured moving images to an external device makes it possible to prevent communication of captured still images and information related to examination order information to an external device from becoming stagnant or delayed.

FIG. 1 is a diagram illustrating an example of the overall configuration of a radiation imaging system. FIG. 2 is a block diagram showing a functional configuration of the mobile radiation imaging apparatus shown in FIG. 1 . FIG. 2 is a diagram for explaining communication control in the first embodiment. FIG. 2 is a diagram for explaining communication control in the first embodiment. FIG. 13 is a diagram showing an example of an examination list screen. 3 is a flowchart showing the flow of a video output control process executed by the control unit in FIG. 2 . 10 is a flowchart showing a flow of an inspection control process A executed by the control unit of FIG. 2 in the second embodiment. 13 is a flowchart showing a flow of an inspection control process B executed by the control unit of FIG. 2 in the third embodiment.

First Embodiment
(Configuration of Radiation Imaging System 100)
First, the configuration of the first embodiment of the present invention will be described.
Fig. 1 shows an example of the overall configuration of a radiation imaging system 100 according to the present embodiment. As shown in Fig. 1, the radiation imaging system 100 is configured by connecting a mobile radiation imaging device 10, a RIS 30, a PACS 40, and a video analysis device 50 via a communication network N such as a LAN (Local Area Network) or a WAN (Wide Area Network) so as to be able to transmit and receive data. The mobile radiation imaging device 10 is connected to the communication network N via a wireless access point (AP) 20 of a wireless LAN. A plurality of wireless access points 20 are provided in the medical facility in which the radiation imaging system 100 is installed.

The mobile radiography device 10 is, for example, a device for performing radiography of patients who have difficulty moving around on a round basis, and is configured to include a main body 1, a radiation source 2, and an FPD (Flat Panel Detector) cassette 3. The mobile radiography device 10 has wheels on the main body 1 and is configured as a mobile medical cart. The main body 1 is also provided with a storage section 120 for storing the FPD cassette 3. The storage section 120 is provided with a connector 108 (see FIG. 2) for connecting to the stored FPD cassette 3, and the stored FPD cassette 3 can be transported while charging its battery 301 (see FIG. 2).
The mobile radiography device 10 may be a portable device that does not have wheels.

As shown in FIG. 1, the mobile radiography device 10 is brought into an operating room, intensive care unit, hospital room, etc., and the FPD cassette 3 is inserted between the subject H lying on a bed B, for example, and the bed B, or into an insertion port provided on the opposite side of the bed B (not shown) from the subject H, and radiation is irradiated from the radiation source 2 to perform still image or video photography of the subject H. In this embodiment, still image photography refers to acquiring an image of the subject in response to one shooting operation (pressing the exposure switch 102a). Video photography refers to acquiring multiple images of the subject by repeatedly irradiating the subject with pulsed radiation such as X-rays at predetermined time intervals (pulse irradiation) or continuously irradiating the subject with a low dose rate (continuous irradiation) in response to one shooting operation. A series of images obtained by video photography is called a video (video). In addition, each of the multiple images that make up a video is called a frame image. Video photography includes dynamic photography, which acquires a dynamic image consisting of multiple frame images that show the dynamics of the subject.

FIG. 2 is a block diagram showing the functional configuration of the mobile radiation imaging device 10. As shown in FIG.
The main body 1 of the mobile radiation imaging device 10 functions as a console (imaging control device), and as shown in FIG. 2, is configured with a control unit 101, an operation unit 102, a display unit 103, a memory unit 104, a communication unit 105, a drive unit 106, a battery 107, a connector 108, a charging unit 109, a timer 112, etc., and each unit is connected by a bus 110.

The control unit 101 is composed of a CPU (Central Processing Unit), a RAM (Random Access Memory), etc. In response to input from the operation unit 102, the CPU of the control unit 101 reads out the system program and various processing programs stored in the storage unit 104, expands them in the RAM, and executes various processes according to the expanded programs.

The operation unit 102 has a touch panel in which transparent electrodes are arranged in a grid pattern to cover the surface of the display unit 103, and detects the position pressed by a finger or a touch pen, and inputs the position information to the control unit 101 as operation information.
The operation unit 102 also includes an exposure switch 102a that allows the user to instruct the start of radiation exposure.

The display unit 103 is composed of a monitor such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube), and displays according to the instructions of the display signal input from the control unit 101.

The storage unit 104 is composed of a non-volatile semiconductor memory, a hard disk, etc. The storage unit 104 stores various programs executed by the control unit 101, parameters required to execute processing by the programs, and data such as processing results.

In this embodiment, the storage unit 104 includes an examination order information storage unit 104a and the like.
The examination order information storage unit 104a stores examination order information acquired from the RIS 30. Here, the examination order information includes, for example, examination identification information (examination ID, etc.), examination date, patient information on the subject patient (patient ID, name, sex, age, hospital room (ward), etc.), information on each imaging performed in the examination (imaging ID, imaging type indicating whether still image imaging or video imaging, imaging conditions (e.g., imaging part, imaging direction, frame rate, number of images, imaging time, irradiation power of the radiation source 2, etc.), type of analysis processing performed by the video analysis device 50 (type or name of analysis processing, etc.), requested department, type of emergency or not, etc.).
The storage unit 104 also has a temporary storage area for temporarily storing information (for example, video images, etc.) waiting to be output to an external device.

The communication unit 105 includes a first communication unit 105a for transmitting and receiving data with the FPD cassette 3 via wired or wireless communication, and a second communication unit 105b (wireless communication unit) for transmitting and receiving data (input/output) with external devices such as the RIS 30, PACS 40, and video analysis device 50 connected to the communication network N via the wireless access point 20.

The driving unit 106 is a circuit that drives the tube of the radiation source 2. The driving unit 106 and the radiation source 2 are connected via a cable.

The battery 107 supplies power to each part of the main body 1 and the radiation source 2. The battery 107 can be charged externally via an AC cable 111. The battery 107 is charged in advance via the AC cable 111 during times when no imaging work is being performed, and the AC cable 111 is stored inside the main body 1 when moving.

The connector 108 is provided inside the storage unit 120 and electrically connects to the FPD cassette 3 stored in the storage unit 120.

The charging unit 109 is a circuit that charges the battery 301 of the FPD cassette 3 connected via the connector 108 with power supplied from the battery 107 during non-imaging times based on control from the control unit 101.

The timer 112 measures a preset time in response to an instruction from the control unit 101, and notifies the control unit 101 when the preset time has elapsed.

The radiation source 2 is driven by the driving unit 106 and irradiates the subject H with radiation (X-rays).

The FPD cassette 3 is a portable radiation detector powered by a rechargeable battery 301, and is capable of capturing still images and moving images. The FPD cassette 3 has, for example, a glass substrate or the like, and a plurality of detection elements are two-dimensionally arranged at predetermined positions on the substrate, which detect radiation irradiated from the radiation source 2 and transmitted through at least the subject H according to its intensity, and convert the detected radiation into an electrical signal and store it. The detection elements are composed of semiconductor image sensors such as photodiodes. Each detection element is connected to a switching unit such as a TFT (Thin Film Transistor), and the storage and readout of the electrical signal are controlled by the switching unit to obtain image data (frame image).
There are two types of FPDs: an indirect conversion type in which radiation is converted into an electric signal by a photoelectric conversion element via a scintillator, and a direct conversion type in which radiation is directly converted into an electric signal. Either type may be used as the FPD cassette 3 .

The RIS 30 is an order issuing device that issues and stores examination order information, and transmits the issued examination order information to modalities such as the mobile radiography device 10 via the communication network N. It also receives examination result information (e.g., examination completion status) for each examination order information transmitted (output) from a modality such as the mobile radiography device 10, and stores the information in association with each examination order information, thereby managing the progress of each ordered examination.

PACS 40 is an image management device that stores and manages medical images (still images, video images) generated by modalities such as the mobile radiography device 10 and analysis results by the video analysis device 50 in association with patient information and examination information.

The video analysis device 50 performs analysis processing, such as subject dynamics analysis, on the video images output from the mobile radiography device 10, etc., and transmits the video images and the analysis results to the PACS 40. The video analysis device 50 is capable of performing multiple types of analysis processing, and performs a specified type of analysis processing from among the multiple types of analysis processing.

(Operation of Radiation Imaging System 100)
Next, the operation of the radiation imaging system 100 will be described.
As described above, the mobile radiography device 10 performs data communication with external devices (RIS 30, PACS 40, video analysis device 50) by wireless communication via the wireless access point 20. However, communication may become unstable due to a decrease in communication speed or disconnection due to wireless interference, a decrease in communication speed or disconnection due to an obstruction, switching of the wireless access point 20 during movement, etc. Since the amount of data of information related to examination order information (examination order information, examination result information for examination order information) and still images is small, even if communication is unstable, the communication process (second process) of these data with the external device is unlikely to stagnate, and the problem does not become apparent. However, in the process (first process) of outputting moving images to an external device, it is assumed that communication becomes unstable, which increases the output time (transfer time) or makes it impossible to output, and the stagnation of video output causes the output of still images in the second process to the PACS 40, the acquisition of examination order information from the RIS 30, and the output of examination result information to the RIS 30 to be stagnate or delayed. On the other hand, since the analysis process in the video analysis device 50 is performed after the examination, there is a time leeway.

The control unit 101 of the mobile radiography device 10 therefore performs control to prioritize a second process of communicating still images obtained by still image capture or information related to examination order information (examination order information and examination result information corresponding to the examination order information) with an external device (PACS 40 or RIS 30) via wireless communication over a first process of outputting moving images obtained by video capture to an external device (video analysis device 50) via wireless communication.

Figures 3 and 4 are diagrams for explaining communication control in this embodiment. In Figures 3 and 4, the vertical axis indicates communication priority, and the horizontal axis indicates elapsed time. The higher the vertical axis, the higher the communication priority. In other words, the communication priority is "information related to examination order information > still images > video images." Note that, as an example, examination A and examination B include still image capture and video capture. In the case shown in Figures 3 and 4, an example is shown in which RIS 30 acquires reserved examination order information one by one and performs the examination, but it is also possible to acquire multiple examination order information at once.

As shown in FIG. 3, when the second communication unit 105b acquires the examination order information of the examination A from the RIS 30 (obtaining the examination A order), the control unit 101 displays the acquired examination order information of the examination A on the examination list screen 130 (see FIG. 5) of the display unit 103. When the examination order information of the examination A is selected from the examination list screen 130 by the operation unit 102 and an instruction to start the examination is given, the control unit 101 controls the radiation source 2 and the FPD cassette 3 to carry out the examination A (performing the examination A). When the examination A is completed, the control unit 101 starts the second process based on the priority of communication. That is, the second communication unit 105b starts outputting the examination result information of the examination A to the RIS 30 (outputting the examination A result), and then starts outputting the still image of the examination A to the PACS 40 by the second communication unit 105b (outputting the A still image). Next, the control unit 101 starts the first process. That is, the second communication unit 105b starts outputting the moving image of the examination A to the moving image analysis device 50 (outputting the A moving image).

After completing the output of the examination result information of the examination A, the control unit 101 acquires the examination order information of the next examination B through the second communication unit 105b (obtain examination B order) if there is a next examination (say examination B) based on the priority of communication, even if the output of the still images and the moving images of the examination A are not completed, and displays the acquired examination order information of the examination B on the examination list screen 130 of the display unit 103. When the examination order information of the examination B is selected from the examination list screen 130 by the operation unit 102 and an instruction to start the examination is given, the control unit 101 controls the radiation source 2 and the FPD cassette 3 to perform the examination B (perform examination B). When the examination B is completed, the control unit 101 starts the second process for the examination B. That is, the control unit 101 starts outputting the examination result information of the examination B to the RIS 30 through the second communication unit 105b (output examination B result). Next, if the output of the still images of the examination A is completed, the control unit 101 starts outputting the still images of the examination B to the PACS 40 through the second communication unit 105b without waiting for the completion of the output of the moving images of the examination A (output B still images). If the output of the still images of examination A is not complete, the process waits for the completion of the output of the still images of examination A, and after the output of the still images of examination A is complete, the second communication unit 105b starts outputting the still images of examination B to the PACS 40 without waiting for the completion of the output of the moving images of examination A. Next, if the output of the moving images of examination A is complete, the first process is started. That is, the second communication unit 105b starts outputting the moving images of examination B to the moving image analysis device 50 (B moving image output). If the output of the moving images of examination A is not complete, the process waits for the completion of the output of the moving images of examination A, and after the output of the moving images of examination A is complete, the second communication unit 105b starts outputting the moving images of examination B to the moving image analysis device 50.

In the above control, as shown in FIG. 3, even while the moving image of one examination A is being output to the video analysis device 50, the examination order information of the next examination B is acquired, and when examination B is completed, the output of the examination result information and still images of examination B is started even while the moving image of examination A is being output.

The second communication unit 105b can perform input/output (communication) with the RIS 30 regarding information on examination order information, output of still images to the PACS 40, and output of moving images to the video analysis device 50 in parallel, but this may increase the load and slow down the communication speed of information regarding high-priority examination order information and still images. Therefore, as shown in FIG. 4, the control unit 101 may perform control such that after outputting the examination result information of examination A to the RIS 30, the output of the moving images to the video analysis device 50 is temporarily halted to put the moving images in an output waiting state, and after output of the examination result information and still images of examination B is completed, the output of the moving images of examination A to the video analysis device 50 is resumed.

As described above, the control unit 101 of the mobile radiation imaging device 10 prioritizes the second process of communicating still images obtained by still image capture or information regarding examination order information with an external device (PACS 40 or RIS 30) via wireless communication over the first process of outputting moving images obtained by moving image capture to an external device (moving image analysis device 50) via wireless communication. For example, the second process is started with priority over the first process, and the second process for the next examination is started even if the first process is being output or is waiting to be output.
Therefore, in the mobile radiography device 10, outputting the captured moving images to an external device can prevent communication of information regarding the captured still images and examination order information to the external device from becoming stagnant or delayed.

As described above, the output of the moving images captured by the mobile radiography device 10 to the moving image analysis device 50 is performed by the second communication unit 105b, and therefore it is anticipated that communication may become unstable, resulting in an increase in output time or an inability to output. This may result in a problem that the output time of the moving images for one examination becomes long, making it difficult to start outputting the moving images for the next examination. Therefore, the control unit 101 of the mobile radiography device 10 executes the moving image output control process shown in FIG. 6 when the moving images for each examination are output by the second communication unit 105b. The moving image output control process is described below.

First, the control unit 101 waits for a communication connection with the video analysis device 50 to be established by the second communication unit 105b, and when a communication connection with the video analysis device 50 is established (step S1; YES), it initializes the number of retries (step S2) and starts measuring (counting down) a predetermined time using a timer (step S3).

Next, the control unit 101 determines whether or not the output of the moving image by the second communication unit 105b to the moving image analyzing device 50 has been completed (step S4).
When it is determined that the output of the moving image to the moving image analyzing device 50 is not complete (step S4; NO), the control unit 101 determines whether or not a predetermined time has elapsed and the timer has finished (step S5).
When it is determined that the timer has not expired (step S5; NO), the control unit 101 returns to step S4.

On the other hand, if it is determined that the timer has expired (step S5; YES), the control unit 101 adds 1 to the number of retries (step S6), and determines whether the number of retries has exceeded a predetermined number (step S7).
When it is determined that the number of retries has not exceeded the predetermined number (step S7; NO), the control unit 101 returns to step S4 and repeats steps S4 to S7.

In step S4, when it is determined that the output of the moving image to the moving image analyzing device 50 is completed (step S4; YES), the control unit 101 ends the moving image output control process.
In step S7, if it is determined that the number of retries has exceeded the predetermined number (step S7; YES), the control unit 101 temporarily suspends the output of the moving image, notifies the user of an output error (step S8), and terminates the video output control process.
The output error may be notified by displaying a message to that effect on the display unit 103 or by sounding a buzzer or the like.

In this way, in the video output control process, if the output of the video is not completed within a specified time, a retry is performed up to a specified number of times, and if the output is still not completed, an error is generated and the output of the video is temporarily halted. This prevents the video output time for one test from becoming too long, making it difficult to start outputting the video for the next test.

It is preferable that the control unit 101 notifies the output status of whether a moving image is currently being output by the first process, there is no output (a state where no output is being performed), or there is an output error. This allows the user to easily understand whether a moving image is currently being output, there is no output, or there is an output error.
For example, as shown in FIG. 5, the inspection list screen 130 is provided with an output status display button 130a as a notification unit, and the control unit 101 displays the output status display button 130a in different modes depending on the status. For example, during output, the output status display button 130a is displayed in blue with a white frame rotating around the button, during no output, the output status display button 130a is displayed in blue with no frame, and during output error, the output status display button 130a is displayed in red with no frame. Note that the output status display button 130a is not limited to this, and may display characters indicating the status such as "outputting", "no output", and "output error", or may have a different color or frame for each status, or may have a different button shape. In addition, not only the output status of the moving image, but also the output status of the still image may be displayed together. In this case, it is preferable to display the output status of the moving image and the output status of the still image separately.

Furthermore, the control unit 101 may process the moving image to reduce the amount of data before outputting the moving image, and output the processed moving image to the video analyzing device 50 .
The processing method may include, for example, a method of thinning out the moving images in the time direction or the space direction according to the shooting conditions included in the examination order information and the type of analysis processing performed by the video analysis device 50. For example, if the analysis processing performed by the video analysis device 50 uses only frame images of a predetermined phase in the dynamics cycle of the subject, the moving images are thinned out in the time direction and only the frame images of the predetermined phase are output. Also, for example, if the analysis processing performed by the video analysis device 50 does not mind coarse images, the pixels of each frame image are thinned out and output.
This makes it possible to reduce the time required to output a moving image.

Second Embodiment
Next, a second embodiment of the present invention will be described.
In the second embodiment, an example will be described in which the above-mentioned first process, i.e., output of moving images to the video analysis device 50 is temporarily halted until the examination of all examination order information obtained from the RIS 30 is completed, and the moving images are output together after all scheduled examinations are completed.

The configuration of the radiation imaging system 100 in the second embodiment is similar to that described in the first embodiment, so the description will be used to explain the operation of the radiation imaging system 100 in the second embodiment.

Figure 7 is a flowchart showing the flow of the inspection control process A performed by the control unit 101 in the second embodiment. Below, the inspection control process A will be described with reference to Figure 7.

First, the control unit 101 acquires examination order information of the reserved examination from the RIS 30 via the second communication unit 105b (step S11).
The number of pieces of examination order information acquired here is not particularly limited as long as it is one or more.

Next, the control unit 101 stores the acquired test order information in the test order information storage unit 104a and adds it to the test list screen 130 (step S12).

Next, the control unit 101 starts one examination (step S13) in response to the operation of the operation unit 102 (in response to the selection of examination order information from the examination list screen 130 and the instruction to start the examination), and controls the radiation source 2 and the FPD cassette 3 based on the examination order information to perform imaging (step S14).

When the imaging is completed, the control unit 101 starts a second process of outputting examination result information of the performed examination to the RIS 30 and outputting still images to the PACS 40 via the second communication unit 105b (step S15).
The moving image is stored in a temporary storage area of the storage unit 104. Moreover, status information of the end of the examination is stored in association with the examination order information of the examination stored in the examination order information storage unit 104a.

Next, the control unit 101 judges whether or not there is an unperformed examination (step S16). For example, the control unit 101 refers to the examination order information storage unit 104a and judges whether or not there is an unperformed examination.
When it is determined that there is an unperformed examination (step S16; YES), the control unit 101 starts the next examination in response to the operation of the operation unit 102 (step S17), and returns to step S14. Steps S14 to S15 are repeatedly executed for the examinations corresponding to all the obtained examination order information.

On the other hand, if it is determined in step S16 that there are no unperformed tests (step S16; NO), the control unit 101 performs a first process in which the second communication unit 105b outputs video images captured during the performed test to the video analysis device 50 (step S18), and ends the test control process A.

In this way, in the second embodiment, the second communication unit 105b outputs moving images together after outputting the test result information and still images of all tests acquired from the RIS 30. This makes it possible to eliminate the communication load caused by outputting moving images when communicating information related to still images and test order information with an external device, and makes it possible to communicate information related to still images and test order information with an external device even smoother.

In the second embodiment, similarly to the first embodiment, when a moving image is output, it is preferable to carry out the video output control process shown in FIG. 6. It is also preferable to notify the status of whether the moving image is currently being output, there is no output, or there is an output error (for example, by displaying an output status display button 130a on the inspection list screen 130). Furthermore, the control unit 101 may process the moving image before outputting it, reduce the amount of data, and output it to the video analysis device 50.

In addition, for example, the control unit 101 may exceptionally prioritize output of video for an examination over output of examination result information and still images for an examination whose examination order information includes information indicating that the examination is a high priority examination, such as examination order information with information indicating that it is an emergency, or an examination that the user has selected to output preferentially from the examination list screen 130. For example, in step S15, output of video may be started before output of examination result information and still images is started by the second communication unit 105b. This makes it possible to give priority to output of video that should be output early to the video analysis device 50.

Third Embodiment
Next, a third embodiment of the present invention will be described.
In the third embodiment, an example will be described in which, if the first process (moving image output) is being performed when new examination order information is obtained, the first process (moving image output) is temporarily stopped.

The configuration of the radiation imaging system 100 in the third embodiment is similar to that described in the first embodiment, so the description will be used to explain the operation of the radiation imaging system 100 in the third embodiment.

Figure 8 is a flowchart showing the flow of the inspection control process B performed by the control unit 101 in the third embodiment. Below, the inspection control process B will be described with reference to Figure 8.

First, the control unit 101 acquires examination order information of the reserved examination from the RIS 30 via the second communication unit 105b (step S21).
The number of pieces of examination order information acquired here is not particularly limited as long as it is one or more.

Next, the control unit 101 stores the acquired test order information in the test order information storage unit 104a and adds it to the test list screen 130 (step S22).

Next, the control unit 101 starts one examination in response to the operation of the operation unit 102 (step S23), and controls the radiation source 2 and the FPD cassette 3 based on the examination order information to perform imaging (step S24).
The processing in steps S21 to S24 is similar to that explained in steps S11 to S14 in FIG. 7, and therefore the explanation thereof will be cited.

When the examination is completed, the control unit 101 starts outputting the examination result information, still images, and video images of the examination performed by the second communication unit 105b to an external device with the priority of examination result information > still images > video images (step S25).
In step S25, first, the control unit 101 starts the second process. That is, it starts a process of outputting examination result information of the performed examination to the RIS 30, and then starts a process of outputting still images of the performed examination to the PACS 40. Next, the control unit 101 starts the first process. That is, it starts a process of outputting moving images of the performed examination to the video analysis device 50.
Moreover, the examination end status information is stored in association with the examination order information of the examination stored in the examination order information storage unit 104a.

Next, the control unit 101 determines whether the RIS 30 has new examination order information that has not yet been acquired by the mobile radiation imaging device 10 (step S26). For example, the control unit 101 queries the RIS 30 as to whether there is new examination order information that has not yet been transmitted to the mobile radiation imaging device 10.

When it is determined that new examination order information exists in the RIS 30 (step S26; YES), the control unit 101 determines whether or not a moving image is being output by the second communication unit 105b (step S27).
When it is determined that a moving image is being output (step S27; YES), the control unit 101 suspends the output of the moving image by the second communication unit 105b (step S28), acquires examination order information of a new examination from the RIS 30 by the second communication unit 105b, stores the information in the examination order information storage unit 104a, and adds the information to the examination list screen 130 (step S29). Then, the control unit 101 resumes the output of the moving image by the second communication unit 105b (step S30), starts the next examination in response to the operation of the operation unit 102 (step S33), and returns to step S24.

If it is determined in step S27 that a moving image is not being output (step S27; NO), the control unit 101 acquires new examination order information from the RIS 30 via the second communication unit 105b, stores the information in the examination order information storage unit 104a, and adds the information to the examination list screen 130 (step S31). Then, in response to the operation of the operation unit 102, the next examination is started (step S33), and the process returns to step S24.

On the other hand, when it is determined in step S26 that no new examination order information exists in the RIS 30 (step S26; NO), the control unit 101 determines whether or not there is an unperformed examination (step S32). For example, the control unit 101 refers to the examination order information storage unit 104a and determines whether or not there is an unperformed examination.
When it is determined that there is an unperformed test (step S32; YES), the control unit 101 starts the next test in response to the operation of the operation unit 102 (step S33), and returns to step S24.

On the other hand, if it is determined in step S32 that there are no tests that have not been performed (step S32; NO), the control unit 101 terminates the test control process B.

In this way, in the third embodiment, if the second communication unit 105b is outputting moving images when new examination order information is obtained from the RIS 30, the output of the moving images is temporarily stopped. This eliminates the communication load caused by the output of moving images when new examination order information is obtained, and makes it possible to obtain new examination order information even more smoothly.

In the third embodiment, similarly to the first embodiment, when a moving image is output, it is preferable to carry out the video output control process shown in FIG. 6. It is also preferable to notify (for example, display on the inspection list screen 130) the status of whether the moving image is currently being output, there is no output, or there is an output error. Furthermore, the control unit 101 may process the moving image before outputting it, reduce the amount of data, and output it to the video analysis device 50.

In addition, for example, for an examination whose examination order information includes information indicating that the examination is a high priority examination, such as examination order information with information indicating that it is an emergency examination, or for an examination that the user has selected to output as a priority from the examination list screen 130, the control unit 101 may continue outputting the video in step S28 without pausing the output of the video. Alternatively, new examination order information may be obtained after the output of the video has ended.

As described above, the control unit 101 of the mobile radiography device 10 prioritizes the second process of communicating information regarding still images obtained by still image capture or test order information with an external device (RIS 30 or PACS 40) via the second communication unit 105b, rather than the first process of outputting moving images obtained by video capture to an external device (video analysis device 50) via the second communication unit 105b as a wireless communication unit.
Therefore, in the mobile radiography device 10, outputting the captured moving images to an external device can prevent communication of information regarding the captured still images and examination order information to the external device from becoming stagnant or delayed.

For example, the control unit 101 temporarily suspends the first process until the completion of the examination related to all the examination order information acquired in the second process. Therefore, when communicating information related to still images and examination order information with an external device, the communication load caused by outputting moving images can be eliminated, and communication of information related to still images and examination order information with an external device can be performed more smoothly.

For example, the control unit 101 controls the second communication unit 105b to output a still image while waiting for or outputting a moving image by the first process. Therefore, it is possible to prevent communication of the still image to the external device from becoming stagnant or delayed due to the output of the moving image to the external device.

In addition, if a moving image is being output by the first process when new examination order information is acquired by the second process, the control unit 101 suspends the first process. Therefore, if the second communication unit 105b is outputting a moving image when new examination order information is acquired from the RIS 30, the output of the moving image is suspended, so that the communication load caused by the output of the moving image when new examination order information is acquired can be eliminated, and new examination order information can be acquired more smoothly.

In addition, an output status display button 130a is provided to notify the user of whether the video image is waiting to be output, being output, or there is an output error due to the first process, so the user can easily know whether the video image is waiting to be output, being output, or there is an output error.

Note that the description in the above embodiment is a preferred example of the present invention and is not intended to be limiting.

For example, in the above embodiment, the examination order information is obtained from the RIS 30, but the examination order information may be input via the operation unit 102 in the mobile radiography device 10. In this case, since there is no need to communicate information related to the examination order information with an external device, in the second process, only a still image is output to the external device.

In the above explanation, a hard disk or a non-volatile semiconductor memory is used as a computer-readable medium for the program according to the present invention, but the present invention is not limited to this example. Portable recording media such as CD-ROMs can be used as other computer-readable media. Carrier waves can also be used as a medium for providing data for the program according to the present invention via a communication line.

In addition, the detailed configuration and operation of each device that constitutes the mobile radiography device may be modified as appropriate without departing from the spirit and scope of the present invention.

REFERENCE SIGNS LIST 100 Radiation imaging system 10 Mobile radiation imaging device 1 Main body 2 Radiation source 3 FPD cassette 101 Control unit 102 Operation unit 102a Exposure switch 103 Display unit 104 Storage unit 104a Examination order information storage unit 105 Communication unit 105a First communication unit 105b Second communication unit 106 Driving unit 107 Battery 108 Connector 109 Charging unit 110 Bus 111 AC cable 120 Storage unit 301 Battery

Claims (6)

A mobile radiography device capable of performing video imaging using radiation,
a control unit that prioritizes a second process of communicating information regarding the inspection order information with an external device through the wireless communication unit over a first process of outputting a moving image obtained by the moving image capturing to an external device through the wireless communication unit;
Equipped with
The control unit temporarily suspends the first process until all of the examinations related to all of the examination order information acquired in the second process are completed . A mobile radiography device capable of performing video imaging using radiation,
a control unit that prioritizes a second process of communicating information regarding the inspection order information with an external device through the wireless communication unit over a first process of outputting a moving image obtained by the moving image capturing to an external device through the wireless communication unit;
Equipped with
The control unit temporarily suspends the first process if a moving image is being output by the first process when new examination order information is obtained by the second process . 3. The mobile radiation imaging apparatus according to claim 1, wherein the external device to which the first process is output and the external device to which the second process is communicated are different devices. 4. The mobile radiography device according to claim 1 , further comprising a notification unit that notifies the user that the moving image produced by the first process is waiting to be output, is being output, or has an output error. Computer,
a control unit that prioritizes a second process of communicating information regarding the examination order with an external device through a wireless communication unit over a first process of outputting a moving image obtained by moving image capture in the mobile radiation imaging device to the external device through the wireless communication unit;
Function as a
The control unit temporarily suspends the first process until all of the tests related to the test order information acquired in the second process are completed. Computer,
a control unit that prioritizes a second process of communicating information regarding the examination order with an external device through a wireless communication unit over a first process of outputting a moving image obtained by moving image capture in the mobile radiation imaging device to the external device through the wireless communication unit;
Functioning as a
The control unit temporarily suspends the first process if a moving image is being output by the first process when new examination order information is obtained by the second process.

Images