Radiation imaging system and control apparatus

Abstract

To improve the usability of a radiation imaging apparatus.SOLUTION: The system 1 includes imaging apparatuses (first and second radiation imaging apparatuses) 60 capable of generating moving image data, irradiation apparatuses 20 and 120 that irradiate the imaging apparatuses 60 with radiation, and a control apparatus (console 10 or console 110) that executes synchronization processing for synchronizing the timing of radiation imaging by the imaging apparatuses 60 and the timing of radiation irradiation by the irradiation apparatuses 20 and 120. The control apparatus includes a control unit (the control unit 11 or the control unit 111) that controls the radiation imaging by the imaging apparatus 60 of the panel ID "P001"that has been subjected to the synchronization processing earlier than the imaging apparatus 60 of the panel ID "P002" based on the synchronization state of the imaging apparatus 60.SELECTED DRAWING: Figure 18

Description

[Technical Field]

[0001] The present invention relates to a radiation imaging system and a control device. [Background technology]

[0002] Conventionally, there is known a radiography system that performs dynamic radiography by continuously photographing a subject at regular intervals to obtain a plurality of frame images. In this radiography system, in order to prevent the occurrence of abnormal images when performing dynamic radiography, a synchronization process is performed in advance to synchronize signals indicating the timing of radiation irradiation between a radiography device and a radiation irradiation device (see, for example, Patent Document 1 below). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2023-5 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the radiation imaging system disclosed in Patent Document 1, when a radiation imaging device other than the one radiation imaging device for which synchronization processing has been performed is connected to the radiation irradiation device via a wired connection, synchronization between the other radiation imaging device and the radiation irradiation device takes priority. Then, synchronization between the one radiation imaging device and the radiation irradiation device is canceled. Therefore, in the radiation imaging system, the number of radiation imaging devices capable of performing dynamic imaging is limited, which reduces the usability of the radiation imaging devices.

[0005] The present invention has been made in view of the above-mentioned problems, and has an object to improve the usability of a radiographic apparatus. [Means for solving the problem]

[0006] In order to solve the above problems, a radiation imaging system according to the present invention comprises: first and second radiographic imaging devices capable of generating moving image data; a radiation irradiation device that irradiates the first or second radiation imaging device with radiation; a control device that executes a synchronization process to synchronize the timing of radiation imaging by the first or second radiation imaging device with the timing of radiation irradiation by the radiation irradiation device; A radiography system comprising: The control device The radiological imaging device further includes a control unit that controls radiological imaging by the second radiological imaging device, which has undergone the synchronization process earlier than the first radiological imaging device, based on the synchronization state of the first radiological imaging device. [Effects of the Invention]

[0007] According to the present invention, the usability of a radiographic apparatus can be improved. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a block diagram showing a schematic configuration of a radiation imaging system. [Figure 2] FIG. 2 is a block diagram showing the functional configuration of the console. [Figure 3] FIG. 2 is a block diagram showing the functional configuration of a radiation control device. [Figure 4] FIG. 2 is a block diagram showing the functional configuration of the radiation imaging apparatus. [Figure 5] FIG. 2 is a block diagram showing the schematic configuration of a medical cart. [Figure 6] FIG. 2 is a block diagram showing the functional configuration of the console. [Figure 7] FIG. 2 is a block diagram showing the functional configuration of a radiation control device. [Figure 8] 10 is a flowchart showing a synchronization determination process in the radiation imaging system. [Figure 9] 10 is a flowchart showing a synchronization determination process in the radiation imaging system. [Figure 10] 10 is a flowchart showing a synchronization determination process in the radiation imaging system. [Figure 11] 10 is a flowchart showing a synchronization process in the radiation imaging system. [Figure 12] 10 is a flowchart showing a synchronization cancellation process in the radiation imaging system. [Figure 13] 3A and 3B are diagrams illustrating examples of display modes on a display unit of a radiation imaging apparatus. [Figure 14] 3A and 3B are diagrams illustrating examples of display modes on a display unit of a radiation imaging apparatus. [Figure 15] 3A and 3B are diagrams illustrating examples of display modes on a display unit of a radiation imaging apparatus. [Figure 16] 3A and 3B are diagrams illustrating examples of display modes on a display unit of a radiation imaging apparatus. [Figure 17] 10 is a diagram showing an example of a display screen when status information of each radiation imaging apparatus is displayed on the display unit before synchronization of the radiation imaging apparatus with panel ID "P002" is completed. FIG. [Figure 18] 10 is a diagram showing an example of a display screen when status information of each radiation imaging apparatus is displayed on the display unit after synchronization of the radiation imaging apparatus with panel ID "P002" has been completed. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

[0010] <1. Radiography System Configuration> First, the schematic configuration of a radiation imaging system according to this embodiment will be described with reference to Fig. 1. Fig. 1 is a block diagram showing the schematic configuration of a radiation imaging system 1.

[0011] As shown in FIG. 1, a radiography system (hereinafter referred to as system) 1 includes a console 10, a radiation irradiation device 20, a controller 30, a hub 40, an access point 50, a medical cart 100, and a plurality of radiography devices 60.

[0012] As shown in FIG. 1, a radiation irradiation device (hereinafter referred to as irradiation device) 20, a hub 40, and an access point 50 are provided in an imaging room where radiation imaging is performed. For example, one upright imaging table 70 and one supine imaging table 80 are installed in this imaging room. In the example shown in FIG. 1, one radiation imaging device (hereinafter referred to as imaging device) 60 is provided on the upright imaging table 70. This imaging device 60 is wiredly connected to a radiation control device 21 constituting the irradiation device 20 via a communication cable (IFC). Note that the imaging device 60 is capable of wired imaging, in which radiation imaging is performed while being wiredly connected to the radiation control device 21 at the upright imaging table 70 or the supine imaging table 80 as described above. Furthermore, the imaging device 60 is capable of wireless imaging, in which radiation imaging is performed while being wirelessly connected to the radiation control device 21 at the upright imaging table 70 or the supine imaging table 80 via the access point 50. The console 10 and the controller 30 are provided in an imaging management room adjacent to the imaging room. The medical cart 100 is installed in, for example, an intensive care unit (ICU), but is equipped with wheels and the like (not shown) and is configured to be movable to another room.

[0013] <1-1.Console> The console 10 can set imaging conditions (imaging mode (still image imaging, dynamic imaging), tube voltage, tube current and irradiation time or current-time product (mAs value), imaging region, imaging direction, etc.) for at least one of the radiation control device 21 and the imaging device 60 based on imaging orders obtained from other systems such as a Radiology Information System (RIS) or a Picture Archiving and Communication System (PACS) or operations performed on the controller 30 by a user (e.g., a radiologist). In addition, the console 10 can acquire image data of the radiation image generated by the imaging device 60, and store the image data therein or transmit it to other devices (e.g., a PACS, a dynamic analysis device, etc.).

[0014] Next, the functional configuration of the console 10 will be described with reference to FIG. FIG. 2 is a block diagram showing the functional configuration of the console 10. As shown in FIG.

[0015] 2, the console 10 includes a control unit 11, a storage unit 12, a communication unit 13, a display unit 14, and an operation unit 15. The units 11 to 15 of the console 10 are electrically connected via a bus or the like.

[0016] The control unit 11 is configured with a CPU (Central Processing Unit), RAM (Random Access Memory), etc., and is configured to centrally control the operations of each unit of the console 10. The control unit 11 also executes synchronization processing to synchronize signals indicating the timing of radiation irradiation between the imaging device 60 and the irradiation device 20. In other words, the control unit 11 executes synchronization processing to synchronize the timing of radiation imaging by the imaging device 60 and the timing of radiation irradiation by the irradiation device 20. The control unit 11 also displays the synchronization status of the imaging device 60 on the display unit 14.

[0017] The storage unit 12 is configured with a non-volatile memory, a hard disk, etc., and stores various programs executed by the CPU, parameters required for executing the programs, etc. The storage unit 12 is also capable of storing image data of radiographic images acquired from other devices (such as the imaging device 60). The storage unit 12 also stores examination order information transmitted from the RIS, etc. The storage unit 12 also stores pairs of irradiation devices 20 and imaging devices 60 whose timing information is synchronized and associated with each other, using IDs that identify each pair.

[0018] The communication unit 13 is configured with a communication module, etc. The communication unit 13 transmits and receives various signals and various data to and from other devices (such as the irradiation device 20 and the imaging device 60) connected by wire or wirelessly via a communication network.

[0019] The display unit 14 is configured by, for example, an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), etc. The display unit 14 displays a radiation image or the like according to an image signal received from the control unit 11.

[0020] The operation unit 15 includes a keyboard (cursor keys, numeric input keys, various function keys, etc.), a pointing device (mouse, etc.), a touch panel laminated on the surface of the display unit 14, etc. The operation unit 15 outputs a control signal to the control unit 11 in response to an operation performed by the user.

[0021] <1-2. Radiation irradiation device> The irradiation device 20 generates radiation (e.g., X-rays) and irradiates the subject and the imaging device 60 arranged behind the subject with the radiation, and is equipped with a radiation control device (hereinafter referred to as the control device) 21 and a radiation source 22.

[0022] Next, the functional configuration of the control device 21 provided in the irradiation device 20 will be described with reference to Fig. 3. Fig. 3 is a block diagram showing the functional configuration of the control device 21.

[0023] 3, the control device 21 is configured with an irradiation-side control unit 211, a high-voltage generation unit 212, a storage unit 213, an irradiation-side interface unit (hereinafter referred to as irradiation-side IF unit) 214, etc. Each unit 211 to 214 of the control device 21 can be supplied with power via a power cable or a built-in power source (not shown).

[0024] The irradiation-side control unit 211 includes a CPU, RAM, etc., and is configured to comprehensively control the operation of each unit 212 to 214 of the control device 21. The irradiation-side control unit 211 also includes an oscillator (hereinafter referred to as irradiation-side oscillator) 211a. The irradiation-side oscillator 211a can be configured with a quartz oscillator, a ceramic oscillator, or the like that generates a clock with a predetermined cycle when the power is turned on. The irradiation-side control unit 211 has a function of periodically generating timing information using the clock generated by the irradiation-side oscillator 211a. The generated timing information includes, for example, a timing signal and time information. The timing signal refers to a pulse-like signal or the like that is output each time one or more clocks are generated. The time information refers to a count value or the like that counts up the timing signal. The units 211 to 214 of the control device 21 operate based on the clock generated by the irradiation-side oscillator 211a. The irradiation-side oscillator 211a may use multiple oscillators depending on the purpose, such as the required accuracy.

[0025] Upon receiving a timing signal from the irradiation-side control unit 211, the high-voltage generating unit 212 applies a voltage to the radiation source 22 according to preset imaging conditions. The imaging conditions include, for example, imaging mode (still image imaging, dynamic imaging), imaging target region, and physique-related conditions for the subject, as well as radiation irradiation conditions such as tube voltage, tube current, irradiation time, and current-time product. The imaging mode included in the imaging conditions is information about an imaging method, such as still image imaging or dynamic imaging. The system 1 of this embodiment is configured to allow the imaging mode to be set in advance, and the high-voltage generating unit 212 operates appropriately for the imaging mode according to the imaging mode setting. Here, dynamic imaging includes video imaging but does not include capturing still images while displaying the video. A series of images obtained by dynamic imaging is called a dynamic image. Dynamic images include video, but do not include images obtained by capturing still images while displaying the video. When dynamic imaging is included in the imaging conditions, a pulsed voltage is repeatedly applied at predetermined intervals each time a timing signal is received. When a voltage is applied from the high voltage generating unit 212, the radiation source 22 generates radiation at a dose corresponding to the applied voltage. Specifically, when a pulsed voltage is applied from the high voltage generating unit 212, pulsed radiation is emitted.

[0026] The storage unit 213 is configured with an HDD (Hard Disk Drive), a semiconductor memory, etc., and stores various processing programs, as well as parameters, files, etc. required for executing the processing programs. The storage unit 213 is capable of storing various data (e.g., timing information, etc.) generated during processing performed by the irradiation-side control unit 211. The storage unit 213 stores an ID (panel ID; see FIGS. 16 and 17) that identifies the imaging device 60 with which the timing information is synchronized. The storage unit 213 also stores synchronization deadline information. The synchronization accuracy of the timing information between the irradiation device 20 and the imaging device 60 decreases over time due to individual differences and temperature characteristic differences between the irradiation-side oscillator 211a and the imaging-side oscillator 61a (described later). Therefore, the synchronization deadline information is information on the synchronization deadline, which is the time during which the synchronization of the timing information can be maintained when the connection between the irradiation device 20 and the imaging device 60 via the communication cable (IFC) is released.

[0027] The irradiation-side IF unit 214 can be connected to an external interface (IF) and is configured to be able to send and receive various information (signals and data). Specifically, it can be configured with a connector for inserting a communication cable (IFC), etc.

[0028] The irradiation-side control unit 211 of the irradiation device 20 configured as described above operates as follows in accordance with the program stored in the storage unit 213. For example, the irradiation-side control unit 211 sets various imaging conditions (conditions related to the subject, such as imaging mode (still image imaging, dynamic imaging), imaging target region, and physique, and conditions related to radiation irradiation, such as tube voltage, tube current, irradiation time, current-time product, and frame rate). Furthermore, based on receiving an exposure permission notification from the imaging device 60, the irradiation-side control unit 211 controls the high-voltage generation unit 212 to start exposure (irradiation of radiation). When dynamic imaging is included in the imaging conditions, exposure is performed at a cycle corresponding to the frame rate.

[0029] <1-3.Radiation imaging device> Next, the functional configuration of the photographing device 60 will be described with reference to Fig. 4. Fig. 4 is a block diagram showing the functional configuration of the photographing device 60.

[0030] 4, the imaging device 60 includes an imaging-side control unit 61, a radiation detection unit 62, a readout unit 63, a storage unit 64, an imaging-side interface unit (hereinafter referred to as an imaging-side IF unit) 65, etc. Each unit 61 to 65 of the imaging device 60 can be supplied with power via a power cable or a built-in power source (not shown).

[0031] The imaging-side control unit 61 includes a CPU, RAM, etc., and is configured to comprehensively control the operation of each unit 62 to 65 of the imaging device 60. The imaging-side control unit 61 includes an oscillator (hereinafter referred to as imaging-side oscillator) 61a. The imaging-side oscillator 61a can be configured with a quartz oscillator, a ceramic oscillator, or the like that generates a clock with a predetermined cycle when the power is turned on. The imaging-side control unit 61 has a function of periodically generating timing information using the clock generated by the imaging-side oscillator 61a. The format of the timing information generated here is preferably matched with the timing information generated by the irradiation device 20. Furthermore, each unit 61 to 65 of the imaging device 60 operates based on the clock generated by the imaging-side oscillator 61a. Furthermore, the imaging-side oscillator 61a may use multiple oscillators depending on the purpose, such as the required accuracy.

[0032] The radiation detection unit 62 may be any one that has a substrate on which a plurality of pixels are two-dimensionally arranged, the pixels having radiation detection elements that directly or indirectly generate an electric charge corresponding to the dose of radiation received from outside, and switch elements that are provided between each radiation detection element and wiring and can be switched between an ON state that allows current to flow between the radiation detection element and the wiring and an OFF state that prevents current from flowing, and any conventionally known type may be used. In other words, the imaging device 60 may be a so-called indirect type that has a scintillator and detects light emitted by the scintillator when it receives radiation, or a so-called direct type that detects radiation directly without going through a scintillator or the like.

[0033] The readout unit 63 may be configured to read out signal values ​​corresponding to the amount of charge accumulated in each of the multiple radiation detection elements (generated by the radiation detection elements) and generate image data of the radiation image based on each signal value, and any conventionally known readout unit may be used.

[0034] The storage unit 64 is configured with an HDD, a semiconductor memory, etc., and stores various processing programs including various image processing programs, parameters and files required for executing the programs, etc. The storage unit 64 is capable of storing various data (for example, timing information, etc.) generated in the course of processing performed by the imaging-side control unit 61. The storage unit 64 stores synchronization compatibility information indicating that the device is compatible with synchronization of timing information with the irradiation device 20 or the irradiation device 120, synchronization status information indicating the synchronization status of timing information with the irradiation device 20 or the irradiation device 120, an ID identifying the irradiation device (irradiation device 20 or irradiation device 120) with which the timing information has been synchronized, synchronization deadline information, etc.

[0035] The imaging-side IF unit 65 can be connected to an external IF and is configured to be able to send and receive various information (signals and data). Specifically, it can be configured with a connector for inserting a communication cable (IFC), etc.

[0036] The display unit 66 is an indicator that includes a plurality of LEDs (Light Emitting Diodes) and can display the state of the imaging device 60 by controlling the light emission of the LEDs. The display unit 66 has, for example, a synchronization state display unit 661 (see FIGS. 13 to 16) that indicates the synchronization state with the irradiation device 20 or the irradiation device 120. The display unit 66 also has a connection state display unit 662 (see FIGS. 13 to 16) that indicates the connection state with the irradiation device 20 or the irradiation device 120. The display unit 66 also has a battery remaining amount display unit 663 (see FIGS. 13 to 16) that indicates the remaining battery amount of the device 60 itself. The display modes of the synchronization state display unit 661 and the connection state display unit 662 will be described later.

[0037] The operation unit 67 has a power switch (not shown) and various operation switches (not shown), and is configured to be operable by the user.

[0038] When the imaging device 60 is configured to receive power from a built-in power source, the built-in power source may be a lithium ion capacitor (LiC), a lithium ion battery (LiB), or other power source. Lithium ion capacitors are capable of rapid charging and are non-flammable, allowing the next imaging session to be performed in a short time after imaging (for example, during a medical round). On the other hand, lithium ion batteries are inexpensive and have a large capacity, allowing for lower manufacturing costs for the imaging device 60 and fewer charging cycles. Either configuration is preferable for performing multiple imaging sessions.

[0039] The photographing-side control unit 61 of the photographing device 60 configured in this manner operates as follows in accordance with the program stored in the storage unit 64. For example, the photographing-side control unit 61 has the function of switching the state of the photographing device 60 to one of the "initialization state," "storage state," and "reading and transfer state."

[0040] The "initialization state" is a state in which an on voltage is applied to each switch element, and the charge generated by the radiation detection element is not accumulated in each pixel (the charge is released to the signal line). The "accumulation state" is a state in which an off voltage is applied to each switch element, and the charge generated by the radiation detection element can be accumulated in the pixel (the charge is not released to the signal line). The "readout / transfer state" is a state in which an on voltage is applied to each switch element, and the readout unit 63 is driven, making it possible to read out a signal value based on the charge that has flowed in.

[0041] It should be noted that the repeated initialization operation before dynamic imaging consumes a lot of power. Therefore, the imaging device 60 may be configured to initiate the repeated initialization operation before dynamic imaging when a predetermined operation is performed by the user, or may be configured to automatically initiate the operation after a wait time equivalent to the workflow has elapsed. This configuration reduces power consumption throughout the entire workflow.

[0042] <1-4. Medical Cart> Next, the schematic configuration of the medical examination cart 100 provided in the system 1 will be described with reference to Fig. 5. Fig. 5 is a block diagram showing the schematic configuration of the medical examination cart 100.

[0043] The medical cart 100 is configured to be movable and includes a console 110, an irradiation device 120, a charging unit 130, a hub 140, an operation panel 150, an access point 160, a storage unit 170, and wheels (not shown).

[0044] <1-4-1.Console> Like the console 10 described above (see FIGS. 1 and 2), the console 110 is capable of setting imaging conditions (imaging mode (still image imaging, dynamic imaging), tube voltage, tube current and irradiation time or current-time product (mAs value), imaging region, imaging direction, etc.) for at least one of the control device 121 and the imaging device 60 based on imaging orders obtained from other systems such as a radiology information system or an image archiving and communication system, or on operations performed on the operation panel 150 by a user (e.g., a radiologist). The console 110 is capable of acquiring image data of radiographic images generated by the imaging device 60, storing the image data in itself, or transmitting the image data to other devices (PACS, dynamic analysis device, etc.).

[0045] Next, the functional configuration of the console 110 will be described with reference to Fig. 6. Fig. 6 is a block diagram showing the functional configuration of the console 110.

[0046] 6, the console 110 includes a control unit 111, a storage unit 112, a communication unit 113, a display unit 114, and an operation unit 115. The units 111 to 115 of the console 110 are electrically connected via a bus or the like.

[0047] The control unit 111 is configured with a CPU, RAM, etc., and is configured to centrally control the operations of each unit of the console 110. The control unit 111 executes synchronization processing to synchronize signals indicating the timing of radiation irradiation between the imaging device 60 and the irradiation device 120. In other words, the control unit 111 executes synchronization processing to synchronize the timing of radiation imaging by the imaging device 60 and the timing of radiation irradiation by the irradiation device 120. The control unit 111 also displays the synchronization status of the imaging device 60 on the display unit 114.

[0048] The storage unit 112 is configured with a non-volatile memory, a hard disk, etc., and stores various programs executed by the CPU, parameters required for executing the programs, etc. The storage unit 112 is also capable of storing image data of radiation images acquired from other devices (such as the imaging device 60). The storage unit 112 also stores examination order information transmitted from the RIS, etc. The storage unit 112 also stores pairs of irradiation devices 120 and imaging devices 60 whose timing information is synchronized and associated with each other, using IDs that identify each pair.

[0049] The communication unit 113 is configured with a communication module, etc. The communication unit 113 transmits and receives various signals and various data to and from other devices (such as the irradiation device 120 and the imaging device 60) connected by wire or wirelessly via a communication network.

[0050] The display unit 114 is configured with, for example, an LCD, a CRT, etc. The display unit 114 displays a radiation image or the like in accordance with an image signal received from the control unit 111.

[0051] The operation unit 115 includes a keyboard (cursor keys, numeric input keys, various function keys, etc.), a pointing device (mouse, etc.), a touch panel laminated on the surface of the display unit 114, etc. The operation unit 115 outputs a control signal to the control unit 111 in response to an operation performed by the user.

[0052] <1-4-2. Radiation irradiation device> The irradiation device 120, like the above-mentioned irradiation device 20 (see FIG. 1), generates radiation (e.g., X-rays) and irradiates the radiation onto the subject and the imaging device 60 arranged behind it, and includes a control device 121 and a radiation source 122.

[0053] Next, the functional configuration of the control device 121 provided in the irradiation device 120 will be described with reference to Fig. 7. Fig. 7 is a block diagram showing the functional configuration of the control device 121.

[0054] 7, the control device 121 is composed of an irradiation-side control unit 1211, a high-voltage generation unit 1212, a storage unit 1213, an irradiation-side IF unit 1214, etc. Each unit 1211 to 1214 of the control device 121 can be supplied with power via a power cable or a built-in power source (not shown).

[0055] The irradiation-side control unit 1211 includes a CPU, RAM, etc., and is configured to comprehensively control the operation of each unit 1212 to 1214 of the control device 121. The irradiation-side control unit 1211 also includes an irradiation-side oscillator 1211a. The irradiation-side oscillator 1211a can be configured with a quartz oscillator, a ceramic oscillator, or the like that generates a clock with a predetermined cycle when the power is turned on. The irradiation-side control unit 1211 has a function of periodically generating timing information using the clock generated by the irradiation-side oscillator 1211a. The generated timing information includes, for example, a timing signal and time information. The timing signal refers to a pulse-like signal or the like that is output each time one or more clocks are generated. The time information refers to a count value or the like that counts up the timing signal. The units 1211 to 1214 of the control device 121 operate based on the clock generated by the irradiation-side oscillator 1211a. The irradiation-side oscillator 1211a may use multiple oscillators depending on the purpose, such as the required accuracy.

[0056] Upon receiving a timing signal from the irradiation-side controller 1211, the high-voltage generator 1212 applies a voltage to the radiation source 122 according to preset imaging conditions. The imaging conditions include, for example, imaging mode (still image imaging, dynamic imaging), imaging target region, and physique, as well as conditions related to the subject, such as tube voltage, tube current, irradiation time, current-time product, and frame rate. The imaging mode included in the imaging conditions is information related to imaging methods, such as still image imaging and dynamic imaging. The system 1 of this embodiment is configured to allow the imaging mode to be set in advance, and the high-voltage generator 1212 operates appropriately for the imaging mode according to the imaging mode setting. Dynamic imaging includes video imaging, but does not include capturing still images while displaying the video. A series of images obtained by dynamic imaging is called a dynamic image. Dynamic images include video, but do not include images obtained by capturing still images while displaying the video. When dynamic imaging is included in the imaging conditions, a pulsed voltage is repeatedly applied at predetermined intervals each time a timing signal is received. When a voltage is applied from the high voltage generating unit 1212, the radiation source 122 generates radiation at a dose corresponding to the applied voltage. Specifically, when a pulsed voltage is applied from the high voltage generating unit 1212, pulsed radiation is emitted.

[0057] The storage unit 1213 is configured with an HDD, a semiconductor memory, etc., and stores various processing programs, as well as parameters, files, etc. required for executing the processing programs. The storage unit 1213 is capable of storing various data (e.g., timing information, etc.) generated during the processing performed by the emission side control unit 1211. The storage unit 1213 also stores an ID that identifies the imaging device 60 that synchronized the timing information. The storage unit 1213 also stores synchronization deadline information.

[0058] The irradiation-side IF unit 1214 can be connected to an external interface (IF) and is configured to be able to send and receive various information (signals and data). Specifically, it can be configured with a connector for inserting a communication cable (IFC), etc.

[0059] The irradiation-side control unit 1211 of the irradiation device 120 configured as described above operates as follows in accordance with a program stored in the storage unit 1213. For example, the irradiation-side control unit 1211 sets various imaging conditions (conditions related to the subject, such as imaging mode (still image imaging, dynamic imaging), imaging target region, and physique, and conditions related to radiation irradiation, such as tube voltage, tube current, irradiation time, current-time product, and frame rate). Furthermore, upon receiving an exposure permission notification from the imaging device 60, the irradiation-side control unit 1211 controls the high-voltage generation unit 1212 to start exposure (irradiation of radiation). When dynamic imaging is included in the imaging conditions, exposure is performed at a period corresponding to the frame rate.

[0060] <1-4-3.Other> The charging unit 130 is for charging the built-in power supply of the imaging device 60. The charging unit 130 may be charged by receiving power from an external power supply (for example, a hospital outlet), by receiving power from a power supply provided in the medical cart 100, or by using its own power supply. The hub 140 is, for example, a switching hub that relays between the irradiation device 120 and the access point 160, and has multiple ports.

[0061] The operation panel 150 includes an exposure switch (not shown) connected by wire to the main body of the operation panel 150. When the exposure switch is pressed, the control unit 111 of the console 110 transmits an imaging start signal to the control device 121. When the exposure switch is released, the control unit 111 of the console 110 transmits an imaging stop signal to the control device 121.

[0062] The access point 160 performs wireless communication with the imaging device 60 using a wireless LAN (Local Area Network) or the like. The storage unit 170 is configured to be able to store the imaging device 60. The storage unit 170 has an external IF that is connected to the imaging-side IF unit 65 when the imaging device 60 is stored. Specifically, the tip of a communication cable (IFC) is attached to a position inside the storage unit 170 facing the imaging-side IF unit 65. The communication cable (IFC) connects the irradiation device 120 and the imaging device 60 to enable communication between them.

[0063] <1-5.Other> The hub 40 is, for example, a switching hub that relays communication between the console 10 and the irradiation device 20, between the irradiation device 20 and the access point 50, and between the console 10 and the access point 50, and has multiple ports. The access point 50 performs wireless communication with the imaging device 60 using a wireless LAN or the like. A communication cable (IFC) connects the irradiation device 20 and the imaging device 60 to enable communication between them.

[0064] The system 1 configured as described above can perform imaging of a subject by irradiating radiation from the irradiation device 20 to the subject (e.g., a subject positioned on a standing imaging platform 70) positioned between the irradiation device 20 and the imaging device 60 in an imaging room. Furthermore, the system 1 can perform imaging of a subject by irradiating radiation from the irradiation device 120 mounted on a medical cart 100 to the subject positioned between the irradiation device 120 and the imaging device 60 in an intensive care unit. Furthermore, the system 1 can perform imaging of a moving image (e.g., dynamic imaging). Specifically, based on a single imaging operation (pressing an exposure switch), the irradiation device 20 or the irradiation device 120 can generate pulsed radiation of a predetermined duration multiple times in succession at regular intervals, and the imaging device 60 can generate multiple frame images that constitute a moving image. Furthermore, the system 1 can be configured to be able to communicate with other systems such as RIS and PACS, and with an analysis device.

[0065] <2. Operation of the Radiography System> Next, the operation of the system 1 will be described. In the system 1, when video imaging (dynamic imaging, fluoroscopic imaging, etc.) is performed using the irradiation device 20 (see FIG. 1) and the imaging device 60, or the irradiation device 120 (see FIG. 5) and the imaging device 60, whose timing information is not synchronized, there is a possibility that an abnormal image will be generated. Therefore, in order to prevent video imaging using the irradiation device 20 and the imaging device 60 whose timing information is not synchronized, the control unit 11 of the console 10 provided in the imaging control room (see FIG. 1) manages the association between the irradiation device 20 and the imaging device 60 whose timing information is synchronized. Furthermore, in order to prevent video imaging using the irradiation device 120 and the imaging device 60 whose timing information is not synchronized, the control unit 111 of the console 110 provided in the medical cart 100 (see FIG. 5) manages the association between the irradiation device 120 and the imaging device 60 whose timing information is synchronized. Note that the management of the association between the irradiation device 20 and the imaging device 60 by the control unit 11 and the management of the association between the irradiation device 120 and the imaging device 60 by the control unit 111 are performed in a similar manner. Here, the above-mentioned processes include synchronization determination processing (see FIG. 8), synchronization processing (see FIG. 11), synchronization cancellation processing (see FIG. 12), etc. Therefore, hereinafter, the management of the association between the irradiation device 20 and the imaging device 60 by the control unit 11 of the console 10 will be described, and a description of the management of the association between the irradiation device 120 and the imaging device 60 by the control unit 111 of the console 110 will be omitted.

[0066] Here, when the imaging-side IF unit 65 of the imaging device 60 and the irradiation-side IF unit 214 of the control device 21 are wired connected via a communication cable (IFC) provided on the upright imaging platform 70 or the supine imaging platform 80 as shown in FIG. 1 , the synchronization determination process shown in FIG. 8 is started in the console 10. Furthermore, when the wired connection is established, the connection status display unit 662 of the display unit 66 of the imaging device 60 lights up as shown in FIG. 13 . Here, when the wired connection is released (disconnected), the connection status display unit 662 is displayed in a flashing state (see FIG. 15 ). Note that the synchronization determination process may be started when, during the wired connection between the imaging-side IF unit 65 of the imaging device 60 and the irradiation-side IF unit 214 of the control device 21, the communication between the imaging-side IF unit 65 and the irradiation-side IF unit 214 is disconnected and reconnected, when a synchronization instruction is received from the user via the operation unit 15, or when a reset process is performed on the communication between the irradiation device 20 and the imaging device 60.

[0067] 8, when the synchronization determination process is started, first, the control unit 11 of the console 10 acquires synchronization compatibility information from the image capturing device 60 connected by wire to the control device 21 (step A1). Next, the control unit 11 determines whether the image capturing device 60 connected by wire to the control device 21 is a synchronization compatible device based on the synchronization compatibility information acquired in step A1 (step A2).

[0068] In step A2, if it is determined that the photographing device 60 connected to the control device 21 by wire is not a synchronization-compatible device (step A2; NO), the control unit 11 displays on the display unit 14 that the photographing device 60 is not a synchronization-compatible device (step A3). Then, the control unit 11 ends this process.

[0069] Furthermore, in step A2, if it is determined that the photographing device 60 connected to the control device 21 by wire is a device that supports synchronization (step A2; YES), the control unit 11 acquires synchronization status information from the photographing device 60 (step A4). Subsequently, based on the synchronization status information acquired in step A4, the control unit 11 determines whether the timing information of the photographing device 60 connected to the control device 21 by wire is not synchronized (step A5).

[0070] In step A5, if it is determined that the image capturing device 60 connected to the control device 21 by wire is not unsynchronized (step A5; NO), the control unit 11 displays on the display unit 14 that the timing information of the image capturing device 60 is synchronized (step A6). Then, the control unit 11 ends this process.

[0071] Also, in step A5, if it is determined that the photographing device 60 connected by wire to the control device 21 is not synchronized (step A5; YES), the control unit 11 displays on the display unit 14 that the timing information of the photographing device 60 is not synchronized (step A7).

[0072] Next, the control unit 11 displays on the display unit 14 a message indicating that an instruction as to whether or not to synchronize the timing information of the image capturing device 60 connected by wire to the control device 21 is accepted, and determines whether or not an instruction operation to synchronize the timing information from the user has been accepted via the operation unit 15 (step A8). Note that, as shown in Fig. 9, in the synchronization judgment process, the judgment process of step A8 may be executed first, and if it is determined in step A8 that an instruction operation to synchronize the timing information has been accepted (step A8; YES), the processes from step A1 onwards may be executed.

[0073] If it is determined in step A8 that the instruction operation for synchronizing the timing information has not been accepted (step A8; NO), the control unit 11 ends this process. Also, if it is determined in step A8 that the instruction operation for synchronizing the timing information has been accepted (step A8; YES), the control unit 11 transmits a timing information synchronization instruction to the image capturing device 60 that is connected to the control device 21 by wire (step A9), and synchronizes the timing information between the irradiation device 20 and the image capturing device 60. The synchronization process of the timing information described below may be automatically started when the irradiation-side IF unit 214 of the control device 21 and the image capturing-side IF unit 65 of the image capturing device 60 are connected by wire. Also, as shown in FIG. 10, after executing the process of step A7, the control unit 11 may execute the process of step A9 without executing the determination process of step A8, and then execute the synchronization of the timing information between the irradiation device 20 and the image capturing device 60.

[0074] FIG. 11 shows the synchronization process of the timing information between the irradiation device 20 and the imaging device 60. As shown in FIG. 11 , upon receiving the timing information synchronization instruction, the imaging-side control unit 61 transmits a timing information synchronization start request to the irradiation device 20 (step A101). Next, upon receiving the timing information synchronization start request, the illumination-side control unit 211 initializes a count value, which is time information, and transmits the generated timing information to the imaging device 60 (step A102). Next, upon receiving the timing information, the imaging-side control unit 61 synchronizes its own timing information at the time of receiving the timing information based on the received timing information (step A103). Specifically, based on the timing signal transmitted from the control device 21, the imaging-side control unit 61 generates a copy signal whose rising timing is equal to that of the timing signal, and synchronizes the count values. In other words, the illumination-side control unit 211 and the imaging-side control unit 61 generate timing information with the same count value at the same timing. Next, the imaging-side control unit 61 transmits a timing information synchronization completion notification to the console 10 (step A104).

[0075] Here, when synchronization of the timing information is completed, the photographing-side control unit 61 causes a synchronization status display section 661 on the display unit 66 to flash, as shown in Fig. 14. While the synchronization status display section 661 is flashing, the photographing device 60 is able to shoot video by wireless connection with the control device 21 via the access point 50. Furthermore, when the wired connection with the control device 21 is released (disconnected), the photographing-side control unit 61 causes a connection status display section 662 on the display unit 66 to flash, as shown in Fig. 15.

[0076] Returning to the synchronization determination process (see FIG. 8), the control unit 11 determines whether or not a timing information synchronization completion notification transmitted by the photographing device 60 has been received, thereby determining whether or not synchronization has been completed (step A10).

[0077] If it is determined in step A10 that synchronization is not complete (step A11; NO), the control unit 11 transitions the process to step A10. That is, the control unit 11 waits until it receives a timing information synchronization completion notification. If it is determined in step A10 that synchronization is complete (step A10; YES), the control unit 11 determines whether the wired connection between the imaging-side IF unit 65 of the imaging device 60 and the illumination-side IF unit 214 of the control device 21 has been released (step A11).

[0078] If it is determined in step A11 that the wired connection has not been released (step A11; NO), the control unit 11 shifts the process to step A11. That is, the control unit 11 waits until the wired connection is released. If it is determined in step A11 that the wired connection has been released (step A11; YES), the control unit 11 displays synchronization status information of the image capturing device 60 for which synchronization has been completed on the display unit 14 (step A12). Then, the control unit 11 ends the process.

[0079] 17 is a diagram showing an example of a display screen when the status information of each camera device 60 before synchronization of the camera device 60 with panel ID "P002" is completed is displayed on the display unit 14. Fig. 17 is a diagram showing an example of a display screen when the status information of each camera device 60 after synchronization of the camera device 60 with panel ID "P002" is completed is displayed on the display unit 14.

[0080] 17, the display of remaining battery information 141 corresponding to the camera 60 with panel ID "P001" indicates that the remaining battery power of the camera 60 is "30%." Furthermore, the display of synchronization expiration information 142 corresponding to the camera 60 with panel ID "P001" indicates that the synchronization maintenance time for the camera 60 is "45 minutes remaining." Furthermore, the display of synchronization completion information 143 corresponding to the camera 60 with panel ID "P001" indicates that the camera 60 has already synchronized.

[0081] 17, the display of remaining battery information 141 corresponding to the camera device 60 with panel ID "P002" indicates that the remaining battery power of the camera device 60 is "30%." Here, in the example display screen shown in Fig. 17, the synchronization deadline information 142 and the synchronized information 143 are not displayed for the camera device 60 with panel ID "P002." In other words, the example display screen shown in Fig. 17 indicates that the camera device 60 with panel ID "P002" is not synchronized.

[0082] On the other hand, when synchronization of the photographing device 60 with panel ID "P002" is completed and the wired connection with the irradiation-side IF unit 214 of the control device 21 is released, as shown in FIG. 18 , the display of the synchronization completion information 143 corresponding to the photographing device 60 with panel ID "P002" indicates that the photographing device 60 has already synchronized. At this time, the display of the synchronization expiration information 142 corresponding to the photographing device 60 with panel ID "P002" indicates that the synchronization maintenance time for the photographing device 60 is "60 minutes remaining." Also, as shown in FIG. 18 , the display of the synchronization completion information 143 corresponding to the photographing device 60 with panel ID "P001" indicates that the photographing device 60 has already synchronized. Also, the display of the synchronization expiration information 142 corresponding to the photographing device 60 with panel ID "P001" indicates that the synchronization maintenance time for the photographing device 60 is "40 minutes remaining." In this manner, in this embodiment, even after synchronization of the camera device 60 with panel ID "P002" is completed, synchronization of the camera device 60 with panel ID "P001" is not released and is maintained.

[0083] Next, a case where the synchronization between the irradiation device 20 and the imaging device 60 is released will be described. FIG. 12 shows a flowchart of the synchronization cancellation process executed in the console 10, the irradiation device 20, and the imaging device 60.

[0084] In the synchronization cancellation process, the imaging-side control unit 61 of the imaging device 60 determines whether the synchronization conditions have been met (step B1). Here, the synchronization conditions have been met when the synchronization maintenance time (synchronization deadline) has expired, when the imaging device 60 is connected to an irradiation device (e.g., the irradiation device 120) other than the associated irradiation device 20 via a communication cable, when the imaging device 60 is connected to a cradle (not shown), or when a transition in the power supply state such as a transition to power saving, power OFF, or a decrease in the remaining battery level has occurred. In step B1, if it is determined that the synchronization conditions have not been met (step B1; NO), the imaging-side control unit 61 transitions the process to step B1.

[0085] Similarly, the irradiation-side control unit 211 of the irradiation device 20 determines whether the synchronization conditions have been met (step B2). The end of the synchronization conditions here refers to the expiration of the synchronization maintenance time (synchronization deadline) or the occurrence of a power supply state transition such as power saving, power OFF, or a decrease in the remaining battery charge. If it is determined in step B2 that the synchronization conditions have not been met (step B2; NO), the irradiation-side control unit 211 transitions the process to step B2.

[0086] When it is determined that the synchronization conditions have been met in the imaging device 60 (step B1; YES), the imaging-side control unit 61 transmits a synchronization release notification indicating that synchronization of the timing information has been released to the console 10 (step B3). When the synchronization conditions have been met, the imaging-side control unit 61 stops the blinking display of the synchronization status display unit 661 as shown in Fig. 16. Similarly, when it is determined that the synchronization conditions have been met in the irradiation device 20 (step B2; YES), the irradiation-side control unit 211 transmits a synchronization release notification indicating that synchronization of the timing information has been released to the console 10 (step B4).

[0087] Next, the control unit 11 of the console 10, which has received the synchronization release notification from the imaging device 60 or the irradiation device 20, stores the pair of the imaging device 60 and the imaging device 20 for which synchronization is to be released as unsynchronized in the storage unit 12, and displays on the display unit 14 that synchronization is released for the pair of the unsynchronized irradiation device 20 and the imaging device 60 (step B5). Specifically, when synchronization between the imaging device 60 with panel ID "P002" and the irradiation device 20 is released, as shown in FIG. 17, the synchronization deadline information 142 and the synchronized information 143 (see FIG. 18) corresponding to the imaging device 60 are hidden, thereby indicating that the imaging device 60 with panel ID "P002" and the irradiation device 20 are unsynchronized. Then, the control unit 11 ends this process.

[0088] <3. Effects> As described above, the control device (console 10 or console 110) included in the system 1 according to this embodiment includes a control unit (control unit 11 or control unit 111) that controls, for example, radiation imaging by the imaging device 60 with panel ID "P001" that has undergone synchronization processing earlier than the imaging device 60 with panel ID "P002" based on the synchronization status of the imaging device 60. Specifically, after synchronization of the imaging device 60 with panel ID "P002" is completed, the control unit (control unit 11 or control unit 111) maintains synchronization of the imaging device 60 with panel ID "P001" that has undergone synchronization processing earlier than the imaging device 60. Therefore, according to the system 1, it is possible to have multiple synchronized imaging devices 60 on standby, which are capable of video imaging (dynamic imaging, fluoroscopic imaging) via the above-mentioned wireless connection, thereby improving the usability of the imaging devices 60.

[0089] The control device (console 10 or 110) also includes a display unit (display unit 14 or 114) that displays the synchronization status of the multiple image capturing devices 60 with panel IDs "P001" and "P002". Therefore, according to the system 1, the synchronization state of each of the image capturing devices 60 can be grasped by the console 10 or the console 110, and therefore the usability of the image capturing devices 60 can be further improved.

[0090] Furthermore, each of the image capturing devices 60 with panel ID "P001" and panel ID "P002" includes a display unit 66 that displays the synchronization status. Therefore, according to the system 1, each image capturing device 60 can grasp the synchronization status of its own device 60, thereby further improving the usability of the image capturing device 60.

[0091] Furthermore, since the irradiation device 120 and the control device (console 110) are mounted on the medical cart 100, video imaging can be performed via wireless connection even in places other than the imaging room (for example, in an intensive care unit).

[0092] <4.Other> It goes without saying that the present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. For example, in the above embodiment, after synchronization of the photographing device 60 with panel ID "P002" is completed, synchronization of the photographing device 60 with panel ID "P001", which was synchronized before the photographing device 60, may be released.

[0093] In the above embodiment, the system 1 is configured to include the irradiation device 20 and the irradiation device 120, but this configuration is merely an example. For example, the system 1 may not include the irradiation device 120, i.e., the medical cart 100, and may be configured to be used only in an imaging room or the like. Furthermore, the system 1 may not include the irradiation device 20, i.e., may be configured with the medical cart 100 and multiple imaging devices 60.

[0094] 17 and 18, in the above embodiment, when the synchronized information 143 is displayed on the display unit 14 of the console 10, information indicating which irradiation device is synchronized with the imaging device 60 may be displayed in association with the corresponding imaging device 60. The information indicating which irradiation device is synchronized with the imaging device 60 may be, for example, a diagram that resembles the irradiation device.

[0095] In addition, in the above embodiment, for example, synchronization processing may be performed on the lying position imaging table 80 even while video imaging (dynamic imaging, fluoroscopic imaging) is being performed via a wired connection on the upright imaging table 70 in the imaging room.

[0096] In the above embodiment, a predetermined mark may be attached to the housing of the modality so that the user can recognize at a glance which modalities are capable of executing the synchronization process. In this embodiment, examples of modalities capable of executing the synchronization process include the upright imaging table 70 and the supine imaging table 80 provided in the imaging room, and the medical cart 100 used in the intensive care unit, etc.

[0097] Furthermore, in the above embodiment, when a synchronized image capturing device 60 is connected to a cradle (not shown), the synchronization is cancelled, but the synchronization may be maintained.

[0098] Furthermore, in the above embodiment, video capture via a wireless connection is possible even when the imaging-side IF unit 65 of the imaging device 60 and the irradiation-side IF unit 214 of the control device 21 are connected via a wired connection via a communication cable (IFC) provided on the upright imaging platform 70 or the supine imaging platform 80. In such cases, the priority of video capture via a wired connection and video capture via a wireless connection may be set based on a user operation. When video capture via a wired connection is prioritized, synchronization processing for video capture via a wireless connection may be performed even during video capture via the wired connection. However, to prevent unnecessary noise from being introduced during video capture via a wired connection, the synchronization processing is performed at the timing of image transfer after video capture ends. On the other hand, when video capture via a wireless connection is prioritized, it is preferable to frequently perform synchronization processing to avoid noise transmitted via the communication cable. Furthermore, since the medical visit cart 100 has limited power supply, whether video capture is performed via a wireless connection or a wired connection may be adjusted as needed depending on the situation. Furthermore, even if priority is given to video shooting via a wireless connection, if the wireless connection is disconnected and a wired connection is confirmed, video shooting will be performed via the wired connection.

[0099] In the above embodiment, the console 10 or the console 110 is described as corresponding to the control device of the present invention, but the radiation control device 21 or the radiation control device 121 may also be corresponding to the control device of the present invention. In such a case, the irradiation-side control unit 211 or the irradiation-side control unit 1211 corresponds to the control unit provided in the above control device.

[0100] In addition, the detailed configuration and detailed operation of each device constituting the system 1 may be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0101] 1 Radiography system 10 Console (control device) 11 Control section 12 Storage section 13 Communications Department 14 Display section 15 Control section 20 Radiation irradiation equipment 21 Radiation Control Device 211 Irradiation side control unit 212 High voltage generator 213 Storage section 214 Irradiation side IF section 22 Radiation source 30 Controllers 40 Hub 50 access points 60 Radiation imaging device (first radiation imaging device, second radiation imaging device) 61 Shooting side control unit 62 Radiation detection unit 63 Readout section 64 Memory section 65 IF section on the imaging side 66 Display section 67 Operation section 70 Standing Photography Platform 80 Recumbent photography stand 100 medical carts 110 Console (control device) 111 Control Unit 112 Storage section 113 Communications Department 114 Display section 115 Operation section 120 Radiation irradiation equipment 121 Radiation Control Device 1211 Irradiation side control unit 1212 High voltage generator 1213 Storage section 1214 Irradiation side IF section 122 Radiation Source 130 Live parts 140 Hub 150 Control panel 160 access points 170 Storage area

Claims

1. first and second radiographic imaging apparatuses capable of generating moving image data; a radiation irradiation device that irradiates the first or second radiation imaging device with radiation; a control device that executes a synchronization process to synchronize a timing of radiation imaging by the first or second radiation imaging device with a timing of radiation irradiation by the radiation irradiation device; A radiography system comprising: The control device a control unit that controls radiation imaging by the second radiation imaging apparatus that has undergone the synchronization process earlier than the first radiation imaging apparatus, based on the synchronization state of the first radiation imaging apparatus; Radiography system.

2. the control unit cancels the synchronization of the second radiation imaging apparatus after the synchronization of the first radiation imaging apparatus is completed. The radiography system according to claim 1 .

3. the control unit maintains the synchronization of the second radiation imaging apparatus after completing the synchronization of the first radiation imaging apparatus. The radiography system according to claim 1 .

4. the control device includes a display unit that displays a state of the synchronization between the first and second radiation imaging devices. The radiography system according to claim 1 .

5. the first and second radiation imaging apparatuses each include a display unit that displays a state of the synchronization; The radiography system according to claim 1 .

6. The radiation irradiation device and the control device are mounted on a medical cart. The radiography system according to claim 1 .

7. each of the first and second radiation imaging devices is capable of wired imaging in which radiation imaging is performed in a state of being wired connected to the radiation irradiating device, and wireless imaging in which radiation imaging is performed in a state of being wirelessly connected to the radiation irradiating device; the control unit prioritizes the wired imaging over the wireless imaging when the first or second radiation imaging device is in a wired connection with the radiation irradiating device; The radiography system according to claim 1 .

8. each of the first and second radiation imaging devices is capable of wired imaging in which radiation imaging is performed in a state of being wired connected to the radiation irradiating device, and wireless imaging in which radiation imaging is performed in a state of being wirelessly connected to the radiation irradiating device; the control unit prioritizes the wireless imaging over the wired imaging when the first or second radiation imaging apparatus is connected to the radiation irradiating apparatus via a wire. The radiography system according to claim 1 .

9. a control device that executes a synchronization process to synchronize a timing of radiography by a first or second radiographic apparatus capable of generating moving image data with a timing of radiation irradiation by a radiation irradiation apparatus that irradiates radiation to the first or second radiographic apparatus, The control device a control unit that controls radiation imaging by the second radiation imaging apparatus that has undergone the synchronization process earlier than the first radiation imaging apparatus, based on the synchronization state of the first radiation imaging apparatus; Control device.

Images