Imaging control device, imaging control method, and program

Abstract

To provide an imaging control device, an imaging control method, and a program capable of executing control to cause doses in a series of X-ray imaging to be of appropriate values.SOLUTION: An imaging control device 21 includes: an acquisition unit (control unit 211) for acquiring information based on the number of times of simple X-ray imaging as information on continuous imaging doses, which are doses in a series of X-ray imaging; and a determination unit (control unit 211) for determining an imaging condition in the series of X-ray imaging according to the information based on the number of times of the simple X-ray imaging acquired by the acquisition unit.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to an imaging control device, an imaging control method, and a program. [Background technology]

[0002] Conventionally, when taking plain X-ray images, it has been required to take images with an appropriate amount of radiation exposure. In this regard, Patent Documents 1 and 2 disclose the following technology. Specifically, this technology controls the amount of radiation emitted from a radiation generating device in simple X-ray photography, thereby eliminating variations in image quality and exposure dose in simple X-ray photography.

[0003] In dynamic radiography to obtain dynamic images having multiple frame images, it is desirable to perform the radiography with an appropriate amount of radiation exposure, similar to plain X-ray radiography. In this regard, Patent Document 3 discloses a technique for controlling the amount of radiation applied to each dynamic radiography session so that the amount is constant. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2001-305232 A [Patent Document 2] JP 2002-253541 A [Patent Document 3] JP 2017-136186 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, in order to perform dynamic radiography with an appropriate dose, it is necessary to set the dynamic radiography conditions that will result in the appropriate dose. A series of X-ray radiography such as dynamic radiography requires many more factors to be considered in setting the radiography conditions than simple X-ray radiography. Therefore, setting the dynamic radiography conditions is complicated and difficult. Furthermore, dynamic radiography has only recently begun to be used in the medical field. Therefore, it is difficult to rely heavily on the skill of the technician to set dynamic radiography conditions, as is the case with plain X-ray radiography. Therefore, it is extremely difficult to set the radiography conditions so that the radiation dose (exposure dose) and image quality of the images obtained by dynamic radiography are appropriate. In addition, there is a problem that there is no judgment index for setting the imaging conditions that realize dynamic imaging with an appropriate dose before imaging starts. In the invention described in Patent Document 3, after the imaging condition setting is completed, control and image correction are performed so that imaging is performed according to the setting. However, the invention described in Patent Document 3 does not disclose the setting of the imaging conditions before imaging starts, and the problem cannot be solved.

[0006] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide an imaging control device, an imaging control method, and a program capable of controlling the radiation dose in a series of X-ray imaging to an appropriate value. [Means for solving the problem]

[0007] In order to solve the above problem, the imaging control device according to claim 1 comprises: an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a determination unit that determines imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; Equipped with.

[0008] The imaging control device according to claim 2 comprises: an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a presentation unit that presents imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; Equipped with.

[0009] The invention described in claim 3 is the imaging control device described in claim 1 or 2, The imaging conditions in the series of X-ray imaging are determined according to the subject.

[0010] The imaging control device according to claim 4 comprises: an acquisition unit that acquires information based on the number of first plain X-ray photographs as information on a continuous photographing dose, which is a dose in a series of X-ray photographs; a reception unit that receives input of imaging conditions for the series of X-ray imaging; an alert output unit that outputs an alert based on information based on the number of times of the first plain X-ray photography acquired by the acquisition unit and imaging conditions in the series of X-ray photography accepted by the acceptance unit; Equipped with.

[0011] The invention described in claim 5 is the imaging control device described in claim 4, The alert output unit outputs an alert when information based on the number of second simple X-ray photographs based on the shooting conditions in the series of X-ray photographs received by the receiving unit exceeds information based on the number of first simple X-ray photographs.

[0012] The invention described in claim 6 is the imaging control device described in claim 4, a dose acquisition unit that acquires a dose of radiation irradiated to a subject; The alert output unit outputs an alert when information based on the number of third simple X-ray imaging based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value that is smaller than a predetermined value than the information based on the number of first simple X-ray imaging.

[0013] The imaging control device according to claim 7 comprises: an acquisition unit that acquires information based on the number of first plain X-ray photographs as information on a continuous photographing dose, which is a dose in a series of X-ray photographs; a reception unit that receives input of imaging conditions for the series of X-ray imaging; a limiting unit that limits setting of the imaging conditions or limits the series of X-ray imaging based on information based on the number of times of the first simple X-ray imaging acquired by the acquiring unit and imaging conditions in the series of X-ray imaging accepted by the accepting unit; Equipped with.

[0014] The invention described in claim 8 is the imaging control device described in claim 7, The restriction unit restricts the setting of the shooting conditions or restricts the series of X-ray shootings when information based on the number of second simple X-ray shootings based on the shooting conditions in the series of X-ray shootings received by the reception unit exceeds information based on the number of first simple X-ray shootings.

[0015] The invention described in claim 9 is the imaging control device described in claim 7, a dose acquisition unit for acquiring a dose of radiation irradiated to a subject; a control unit that stops the irradiation of radiation when information based on the number of third simple X-ray photographs based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value smaller than a predetermined value than the information based on the number of first simple X-ray photographs; Equipped with.

[0016] The invention described in claim 10 is the imaging control device described in any one of claims 1, 2, 4, and 7, The information based on the number of times of plain X-ray photography is information according to at least one of the age of the subject, the sex of the subject, the build of the subject, the dose in past X-ray photography of the subject, and the reference dose.

[0017] The invention described in claim 11 is the imaging control device according to any one of claims 1, 2, 4, and 7, The acquisition unit acquires information based on the number of times the plain X-ray imaging has been performed from a radiology information system.

[0018] The invention described in claim 12 is the imaging control device according to any one of claims 1, 2, 4, and 7, The imaging condition is at least one of a tube voltage, a tube current, a frame rate, and an imaging time.

[0019] The photographing control method according to claim 13 further comprises: an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a determination step of determining imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired in the acquisition step; Includes.

[0020] The photographing control method according to claim 14, an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a presenting step of presenting imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquiring step; Includes.

[0021] The photographing control method according to claim 15 further comprises: an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a receiving step of receiving an input of imaging conditions for the series of X-ray imaging; an alert output step of outputting an alert based on information based on the number of times of the plain X-ray photography acquired in the acquisition step and the photography conditions in the series of X-ray photography accepted in the acceptance step; Includes.

[0022] The photographing control method according to claim 16 further comprises: an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a receiving step of receiving an input of imaging conditions for the series of X-ray imaging; a limiting step of limiting the setting of the imaging conditions or limiting the series of X-ray imaging based on information based on the number of times of the plain X-ray imaging acquired in the acquiring step and imaging conditions in the series of X-ray imaging accepted in the accepting step; Includes.

[0023] The program according to claim 17, The computer of the imaging control device, an acquisition unit for acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a determination unit that determines imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; Function as.

[0024] The program according to claim 18, The computer of the imaging control device, an acquisition unit for acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a presentation unit that presents imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; Function as.

[0025] The program according to claim 19, The computer of the imaging control device, an acquisition unit for acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a reception unit for receiving input of imaging conditions for the series of X-ray imaging; an alert output unit that outputs an alert based on information based on the number of times of the plain X-ray imaging acquired by the acquisition unit and imaging conditions in the series of X-ray imaging accepted by the acceptance unit; Function as.

[0026] The program according to claim 20, The computer of the imaging control device, an acquisition unit for acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a reception unit for receiving input of imaging conditions for the series of X-ray imaging; a restriction unit that restricts setting of the imaging conditions or restricts the series of X-ray imaging based on information based on the number of times of the simple X-ray imaging acquired by the acquisition unit and imaging conditions in the series of X-ray imaging accepted by the acceptance unit; Function as. Effect of the Invention

[0027] According to the present invention, the radiation dose in a series of X-ray photographs can be controlled to an appropriate value. [Brief description of the drawings]

[0028] [Figure 1] FIG. 1 is a block diagram showing a radiation imaging system. [Diagram 2] FIG. 2 is a block diagram showing an imaging control device. [Figure 3A] FIG. 4 is a diagram showing an example of a shooting condition table. [Figure 3B] FIG. 13 is a diagram showing an example of imaging conditions and a reference ESD. [Figure 3C] FIG. 13 is a diagram showing an example of imaging conditions and a reference ESD. [Figure 4] 13 is a flowchart showing the flow of a shooting condition determination process. [Diagram 5] 13 is a flowchart showing the flow of a number of times information acquisition process. [Figure 6] FIG. 13 is a diagram showing an example of a shooting condition editing screen. [Figure 7] 10 is a flowchart showing a flow of a control process during shooting. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. However, the technical scope of the present invention is not limited to the following embodiment and illustrated examples. In the embodiment, the series of X-ray photographing will be described by taking dynamic photography as an example, but is not limited to this. The series of X-ray photographing includes fluoroscopic photography, non-dynamic video photography, tomosynthesis, photography using dual energy subtraction, long-length photography, etc. The long-length photography is performed by irradiating X-rays multiple times while moving the photography device.

[0030] <1. Radiography system> The schematic configuration of a radiation imaging system (imaging system 100) according to this embodiment will be described. FIG. 1 is a block diagram showing an imaging system 100.

[0031] As shown in FIG. 1, the imaging system 100 includes a radiation image capturing device (imaging device 1), an image management system 2, a radiation generating device (generator 3), and a RIS (Radiology Information System) 4. The imaging device 1, the image management system 2, the generating device 3, and the RIS 4 are capable of communicating with each other via, for example, a communication network N (such as a local area network (LAN), a wide area network (WAN), or the Internet).

[0032] The imaging system 100 may be installed in an imaging room, or may be configured to be movable (for example, a medical cart). The imaging system 100 may include an electronic medical record system or an ordering system instead of the RIS 4.

[0033] [1-1. Radiation Generator] The generating device 3 includes a generator 31, an irradiation instruction switch 32, a radiation source 33, and a dose detection unit . The generating device 3 irradiates radiation R to a region to be imaged of a subject S located between a radiation source 33 of the generating device 3 and the imaging device 1, which are disposed opposite to each other with a gap therebetween.

[0034] Based on the operation of an irradiation instruction switch 32, a generator 31 applies a voltage according to preset imaging conditions to a radiation source 33 (a tube).

[0035] The imaging conditions include conditions related to the subject, such as the part to be imaged, the imaging direction, the subject's body position, the subject's physique, the subject's condition, the subject's age, and the subject's sex. The imaging site is, for example, the chest, the legs, etc. The body build of the subject may be specified by the subject's weight, height, BMI (Body Mass Index), body thickness, etc., or may be classified by a range, such as large, medium, small, thin, average, overweight, etc. The state of the subject includes the type of breathing, such as breath holding, deep breathing, etc. The age of the subject may be specified by a numerical value or by a range of categories (child, adult, etc.). The gender of the subject may be identified from anatomical characteristics.

[0036] The imaging conditions include conditions related to irradiation of radiation R, such as the type of examination, tube voltage, tube current, imaging time, current-time product (mAs value), distance from the radiation source 33 to the imaging device 1 (Focus Film Distance: FFD or Source Image Receptor Distance: SID), frame rate, presence or absence of a grid, type of additional filter, manufacturer and type of generator 3, etc. The frame rate is the number of frames acquired per second.

[0037] When a voltage is applied from the generator 31, the radiation source 33 generates radiation R (for example, X-rays) with a dose corresponding to the applied voltage.

[0038] The dose detection unit 34 is located on the side where the radiation R from the radiation source 33 is irradiated, and detects the dose of the radiation R irradiated from the radiation source 33 . The generation device 3 outputs the dose of the radiation R detected by the dose detection unit 34 to the image management system 2.

[0039] The generating device 3 generates radiation R in a manner that corresponds to the form of the radiation image to be generated (a still image, or a dynamic image having a plurality of frame images). In the case of a still image, the generating device 3 irradiates radiation R only once per depression of the irradiation instruction switch 32 . In the case of a dynamic image, the generating device 3 repeats the irradiation of pulsed radiation R multiple times per predetermined time (e.g., 15 times per second) for each press of the irradiation instruction switch 32. Alternatively, in the case of a dynamic image, the generating device 3 continues the irradiation of radiation R for a predetermined time for each press of the irradiation instruction switch 32.

[0040] [1-2. Radiation imaging device] The imaging device 1 generates digital data of a radiation image showing an imaging region of a subject S. The imaging device 1 is, for example, a portable FPD (Flat Panel Detector) device. Specifically, although not shown, the photographing device 1 includes a sensor board, a scanning unit, a readout unit, a control unit, and a communication unit.

[0041] The sensor substrate has imaging elements that generate electric charges according to the amount of radiation R received, and switching elements that store and release the electric charges, arranged two-dimensionally (in a matrix). The scanning section switches each switch element on / off. The readout section reads out the amount of charge emitted from each pixel as a signal value. The control unit controls each unit and generates a radiation image from the multiple signal values ​​read out by the readout unit. The communication unit transmits data of the generated radiation image and various signals to external devices (such as the image management system 2 and the generation device 3) and receives various information and various signals from the external devices.

[0042] The imaging device 1 accumulates and releases electric charges and reads out signal values ​​in synchronization with the timing of irradiation of radiation R from the generating device 3. In this way, the imaging device 1 generates still image data, which is image data of a still image, and dynamic image data, which is image data of a dynamic image. When generating still image data, the imaging device 1 generates a radiographic image only once for each depression of the irradiation instruction switch 32. When generating dynamic image data, the photographing device 1 repeats the generation of frame images constituting a dynamic image multiple times per predetermined time for each press of the irradiation instruction switch 32. The multiple times is, for example, 15 times per second.

[0043] The imaging device 1 may be integrated with the generating device 3 (for example, a CT (Computed Tomography) device, etc.). The image capturing device 1 may display the generated dynamic image in real time on a display device connected to the image capturing device 1.

[0044] [1-3. Image Management System] The image management system 2 includes an imaging control device 21 and an image management device 22 .

[0045] (1-3-1. Shooting control device) The photography control device 21 receives still image data and dynamic image data from the photography device 1. The imaging control device 21 is composed of a PC, a dedicated device, etc., and also serves as a console. That is, the imaging control device 21 sets various imaging conditions for at least one of the imaging device 1 and the generating device 3. The various imaging conditions include tube voltage, tube current, current-time product (mAs value), imaging part, imaging direction, frame rate, imaging time, etc. The imaging control device 21 sets the imaging conditions based on imaging order information acquired from another system (such as the RIS 4) or an operation performed by a user (such as a technician).

[0046] The imaging control device 21 may be separate from the console. The imaging control device 21 may also function as a device other than a console.

[0047] FIG. 2 is a block diagram showing the imaging control device 21. As shown in FIG. As shown in FIG. 2, the imaging control device 21 includes a control unit 211, a storage unit 212, a communication unit 213, a display unit 214, and an operation unit 215. The control unit 211, the storage unit 212, the communication unit 213, the display unit 214, and the operation unit 215 are electrically connected via a bus or the like.

[0048] The control unit 211 includes a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), and the like. The ROM stores various programs executed by the CPU as well as parameters necessary for executing the programs. The CPU reads out various programs stored in the ROM, loads them in the RAM, executes various processes in accordance with the loaded programs, and centrally controls the operations of each part of the imaging control device 21.

[0049] The storage unit 212 includes a non-volatile memory, a hard disk, and the like. The storage unit 212 stores a reference ESD (Entrance Surface Dose) which is an entrance surface dose per simple X-ray imaging. The entrance surface dose corresponds to a dose of air taking into account scattered radiation from the surface of the subject. The reference ESD is, for example, a standard ESD (reference dose) for plain X-ray photography used in a facility that performs dynamic radiography. The reference ESD is, for example, a value according to the subject. Specifically, the reference ESD is, for example, a value according to the physique, age, sex, etc. of the subject. The reference ESD may be a diagnostic reference level for general radiography (plain X-ray radiography). In Japan, for example, "National diagnostic reference levels in Japan (2020)-Japan DRLs 2020 July 3, 2020" is used as the diagnostic reference level. In the United States, for example, "ACR-AAPM-SPR PRACTICE PARAMETER FOR DIAGNOSTIC REFERENCE LEVELS AND ACHIEVABLE DOSES IN MEDICAL X-RAY IMAGING Revised 2018 (Resolution 40)" is used. In Europe, for example, "Lung scan dose" on page 24 of "Radiation Protection 109" is used.

[0050] The storage unit 212 stores the imaging condition table shown in FIG. 3A. 3A, the photographing condition table has 12 types of photographing condition keys corresponding to the age or physique of the subject for each number of times information described later. Photographing conditions and reference ESD are set in each photographing condition key. Fig. 3B shows an example of the imaging conditions and reference ESD for each imaging condition key when the subject is a child and the imaging part is the chest. Fig. 3C shows an example of the imaging conditions and reference ESD for each imaging condition key when the subject is an adult, has a medium build, and the imaging part is the chest. In Fig. 3B and Fig. 3C, the tube voltage, tube current, irradiation time, current time product, frame rate, and imaging time are set as the imaging conditions. The values ​​of the tube voltage, tube current, irradiation time, current-time product, frame rate, and imaging time as the imaging conditions are not limited to the examples shown in FIGS. 3B and 3C. In the example shown in Fig. 3B and Fig. 3C, the imaging conditions corresponding to the respective number of times information are set by changing the imaging time, but this is not limited thereto. The imaging conditions corresponding to the respective number of times information may be set by changing any one of the tube voltage, tube current, irradiation time, current-time product, and frame rate. Alternatively, the imaging conditions corresponding to the respective number of times information may be set by changing two or more items of the tube voltage, tube current, irradiation time, current-time product, frame rate, and imaging time.

[0051] The communication unit 213 includes a communication module and the like. The communication unit 213 transmits and receives various signals and various data to and from external devices (the photographing device 1, the image management device 22, the generating device 3, the RIS 4, etc.) connected via the communication network N in a wired or wireless manner.

[0052] The display unit 214 includes, for example, an LCD (Liquid Crystal Display), an ELD (Electronic Luminescent Display), or a CRT (Cathode Ray Tube). The display unit 214 displays a radiation image or the like in response to an image signal received from the control unit 211 .

[0053] The operation unit 215 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 214, and the like. The operation unit 215 outputs to the control unit 211 a control signal corresponding to an operation performed by the user.

[0054] The photographing control device 21 may not include the operation unit 215, and may receive a control signal from an input device provided separately from the photographing control device 21, for example, via the communication unit 213. The photographing control device 21 may not include the display unit 214, and may output an image signal to a display device (monitor) provided separately from the photographing control device 21. When the external device (such as the image management device 22) has an operation unit, the photographing control device 21 may receive a control signal from the operation unit of the external device. When the external device has a display unit, the photographing control device 21 may output an image signal to the display unit of the external device. In other words, the photographing control device 21 may share the display unit and operation unit with the external device.

[0055] (1-3-2. Image management device) The image management device 22 manages the image data (still image data, dynamic image data, etc.) generated by the image capture device 1. The image management device 22 is a Picture Archiving and Communication System (hereinafter, PACS), an Imaging WorkStation (hereinafter, IWS), or the like.

[0056] Image manager 22 may be separate from the PACS or IWS. The image management device 22 may also function as a device other than the PACS or IWS.

[0057] The image management device 22 stores image data (still image data, dynamic image data, etc.) generated by the photographing device 1. The image management device 22 may be capable of storing image data other than the image data generated by the photographing device 1. The image management device 22 stores radiation amount information corresponding to the radiation amount in imaging for obtaining still image data and dynamic image data received from the imaging control device 21 .

[0058] <2. Operation of the Radiography System> In this embodiment, the imaging system 100 operates as follows. The control unit 211 of the imaging control device 21 executes imaging condition determination processing shown in FIG.

[0059] (Shooting condition determination process) The control unit 211 of the imaging control device 21 executes the information acquisition process the number of times shown in FIG. 5 (step S1).

[0060] (Number of times information acquisition process) The control unit 211 acquires imaging order information from the RIS 4 (step A1). The photographing order information is information in which information necessary for performing photographing in the generating device 3 and the photographing device 1 is set. The radiography order information includes conditions related to the subject, information on the entrance surface dose in a series of dynamic radiography set by a doctor, etc. Hereinafter, the entrance surface dose in a series of dynamic radiography set by the doctor is also referred to as the total ESD set by the doctor. A series of dynamic imaging refers to imaging from the start instruction of dynamic imaging (eg, pressing of the irradiation instruction switch 32) to the release of the imaging instruction (eg, release of the pressing of the irradiation instruction switch 32). The conditions related to the subject include, for example, the physique, age, and sex of the subject.

[0061] The radiography order information may include information on the number of times that the subject has been subjected to dynamic radiography in the past. The information on the number of times that the subject has been subjected to dynamic radiography in the past is information corresponding to the dose of radiation irradiated to the subject when the subject was subjected to dynamic radiography in the past. The number-of-times information is information indicating how many times the dose in a series of dynamic radiography corresponds to the dose per one plain X-ray radiography. That is, the number-of-times information is calculated by the following formula. Number of times information = Entrance surface dose in a series of dynamic exposures (total ESD) / Entrance surface dose per plain X-ray exposure (reference ESD) The number of times information is information based on the number of times plain X-rays are taken.

[0062] Next, the control unit 211 judges whether or not the photographing order information acquired in step A1 includes information on the number of times that the subject has been photographed in dynamic state in the past (step A2). A case where the photographing order information includes information on the number of times the subject was photographed in the past (step A2; YES) will be described. In this case, the control unit 211 acquires information on the number of times the subject was photographed in the past from the photographing order information (step A3), and ends this process.

[0063] On the other hand, a case will be described in which the imaging order information does not include information on the number of times the subject was previously subjected to dynamic imaging (step A2; NO). In this case, the control unit 211 acquires all ESDs set by the doctor from the imaging order information (step A4).

[0064] Next, the control unit 211 acquires a reference ESD according to the conditions related to the subject from the storage unit 212 (step A5). Specifically, the control unit 211 acquires a reference ESD according to the conditions related to the subject included in the photographing order information acquired in step A1. The control unit 211 may obtain a diagnostic reference level according to conditions related to the subject as the reference ESD.

[0065] Next, the control unit 211 calculates the number of times information based on the total ESD and the reference ESD (step A6), and ends this process. The total ESD is the total ESD set by the doctor acquired by the control unit 211 in step A4. The reference ESD is the reference ESD according to the conditions related to the subject acquired by the control unit 211 in step A5.

[0066] The control unit 211 may acquire the number of times information by accepting an input operation of the number of times information by a user via the operation unit 215, instead of executing the number of times information acquisition process. The radiography order information transmitted from the RIS 4 may include the number of times information. In this case, the control unit 211 acquires the number of times information from the radiography order information. That is, the control unit 211 acquires the number of times information (information based on the number of times plain X-ray imaging is performed) from the RIS 4 (Radiology Information System).

[0067] As described above, the control unit 211 acquires information for the number of times. That is, the control unit 211 acquires the number of times information (information based on the number of times of plain X-ray photography) as information on the continuous photography dose, which is the dose in a series of X-ray photography. The control unit 211 functions as an acquisition unit. The step S1 is an acquisition process. The information based on the number of times of plain X-ray imaging is the information on the number of times acquired by the control unit 211 in step S1. The information based on the number of times of plain X-ray photography is information according to at least one of the subject's age, the subject's sex, the subject's build, the dose in past X-ray photography of the subject, and the reference dose.

[0068] Returning to FIG. 4, the control unit 211 determines a photographing condition key based on the number of times information acquired in step S1 and the conditions related to the subject (step S2). Specifically, the control unit 211 determines, from the photographing condition table stored in the storage unit 212, a photographing condition key corresponding to the number of times information acquired in step S1 and the age or physical build of the subject. That is, the control unit 211 determines an imaging condition key in which an imaging condition is set according to the number of times information (information based on the number of times of simple X-ray imaging) acquired as an acquisition unit. That is, the control unit 211 determines an imaging condition for a series of X-ray imaging according to the number of times information (information based on the number of times of simple X-ray imaging) acquired as an acquisition unit. The control unit 211 functions as a determination unit. This step S2 is a determination process. The imaging conditions for the series of X-ray images are determined according to the subject. The imaging conditions in the series of X-ray imaging are at least one of the tube voltage, the tube current, the frame rate, and the imaging time.

[0069] Next, the control unit 211 displays on the display unit 214 the photographing conditions set in the photographing condition keys determined in step S2 (step S3). That is, the control unit 211 presents the imaging conditions for a series of X-ray imaging in accordance with the number of times information (information based on the number of times of plain X-ray imaging) acquired as the acquisition unit. The control unit 211 functions as a presentation unit. Step S3 is a presentation step.

[0070] FIG. 6 shows a shooting condition editing screen 214a that the control unit 211 displays on the display unit 214. In the example shown in FIG. 6, the control unit 211 displays the frame rate and the imaging time as imaging conditions in the irradiation condition field 214b in step S3. In step S3, the control unit 211 may display the imaging conditions such as tube voltage and current-time product in the irradiation condition field 214b.

[0071] Next, the control unit 211 accepts a change by the user to the shooting conditions displayed in step S3 via the operation unit 215 (step S4). That is, the control unit 211 receives input of imaging conditions for a series of X-ray imaging. The control unit 211 functions as a reception unit. Step S4 is a reception step.

[0072] In the example shown in FIG. 6, in step S4, the user changes the frame rate and / or the imaging time displayed in the irradiation condition field 214b. In step S4, the user may change the imaging conditions such as tube voltage and current-time product.

[0073] When the control unit 211 receives a change in the imaging conditions made by the user, the control unit 211 calculates the total ESD based on the changed imaging conditions (step S5). Next, the control unit 211 calculates the changed number of times information based on the changed total ESD calculated in step S5 and the reference ESD acquired in step A5 (step S6). In the number of times information acquisition process, a case where the radiography order information includes the number of times information when the subject was previously subjected to dynamic radiography (step A2; YES) will be described. In this case, in step S6, the control unit 211 acquires a reference ESD according to the conditions related to the subject from the storage unit 212. Next, the control unit 211 calculates the changed number of times information based on the changed total ESD calculated in step S5 and the acquired reference ESD.

[0074] Next, the control unit 211 determines whether or not the changed number-of-times information calculated in step S6 is within an allowable range (step S7). The upper limit value in the allowable range of the number of times information is the number of times information acquired in step S1. The lower limit of the allowable range of the number-of-times information is a value at which the image quality of the image generated under the changed shooting conditions is equal to or higher than a predetermined threshold, and is set in advance.

[0075] If the changed number of times information is within the allowable range (step S7; YES), the control unit 211 determines the value changed in step S4 as the final shooting condition (step S8). The control unit 211 ends this process.

[0076] If the changed number of times information is not within the allowable range (step S7; NO), the control unit 211 displays an alert on the display unit 214 (step S9), and the process proceeds to step S4. That is, the control unit 211 outputs an alert based on the number of times information acquired in step S1 and the shooting conditions in the series of X-ray shootings accepted as the accepting unit. The number of times information acquired in step S1 is information based on the number of times of the first simple X-ray shooting acquired as the acquiring unit. The control unit 211 functions as an alert output unit. Step S9 is an alert output process. Specifically, the control unit 211 as an alert output unit outputs an alert when the information based on the number of times of the second simple X-ray imaging exceeds the information based on the number of times of the first simple X-ray imaging. The information based on the number of times of the second simple X-ray imaging is information based on the number of times of the simple X-ray imaging based on the imaging conditions in the series of X-ray imaging accepted as the accepting unit.

[0077] In step S4, the control unit 211 again accepts changes to the photographing conditions made by the user. That is, the control unit 211 restricts the setting of the imaging conditions based on the number-of-times information acquired in step S1 and the imaging conditions in the series of X-ray imaging accepted as the accepting unit. The number-of-times information acquired in step S1 is information based on the number of times of the first simple X-ray imaging acquired as the acquiring unit. The control unit 211 functions as a restricting unit. This process is a restricting process. Specifically, the control unit 211 as a limiting unit limits the setting of the imaging conditions when the information based on the number of times of the second simple X-ray imaging exceeds the information based on the number of times of the first simple X-ray imaging. The information based on the number of times of the second simple X-ray imaging is information based on the number of times of the simple X-ray imaging based on the imaging conditions in the series of X-ray imaging accepted as the accepting unit.

[0078] The control unit 211 sets the photographing conditions determined in the above-mentioned photographing condition determination process in the photographing device 1 and the generating device 3. The photographing device 1 and the generating device 3 perform photographing based on the set photographing conditions.

[0079] In the example shown in Fig. 3A, the imaging condition table has 12 types of imaging condition keys, but is not limited to this. The imaging condition table may have, for example, three types of imaging condition keys for each number of times information. For example, the imaging condition table has imaging condition keys of "low dose", "medium dose", and "high dose". In this case, in step S2, the control unit 211 determines the photographing condition key based on the number of times information acquired in step S1. Next, in step S3, the control unit 211 changes the shooting conditions set in the shooting condition key determined in step S2 to values ​​according to the conditions related to the subject acquired in step S1. The conditions related to the subject are the age or physical build of the subject. Next, the control unit 211 displays on the display unit 214 the shooting conditions changed according to the conditions related to the subject.

[0080] The control unit 211 may execute steps S5 to S9 of the imaging condition determination process at the timing when the user presses the irradiation instruction switch 32 to start dynamic imaging. In this case, in step S9, the control unit 211 may control the generator 3 not to irradiate radiation R.

[0081] The control unit 211 may perform control so that the irradiation instruction switch 32 of the generating device 3 cannot be pressed, instead of step S9 of the above-mentioned photographing condition determination process. The control unit 211 may control each device of the image capturing system 100 so as not to perform image capturing, instead of step S9 of the image capturing condition determination process. That is, the control unit 211 as a limiting unit limits a series of X-ray photography based on the number of times information acquired in step S1 and the photography conditions in the series of X-ray photography accepted by the accepting unit. The number of times information acquired in step S1 is information based on the number of times of the first simple X-ray photography acquired as the acquiring unit. This process is a limiting process. Specifically, the control unit 211 as a limiting unit limits the series of X-ray photography when the information based on the number of second simple X-ray photography exceeds the information based on the number of first simple X-ray photography. The information based on the number of second simple X-ray photography is information based on the number of simple X-ray photography based on the photography conditions in the series of X-ray photography accepted as the accepting unit.

[0082] Next, a control process during image capture executed by the control unit 211 while the image capture device 1 and the generating device 3 are capturing an image will be described. FIG. 7 shows a flowchart of the control process during shooting.

[0083] (Control processing during shooting) The control unit 211 acquires from the radiation generation device 3 an actual measurement value, which is the dose of radiation R detected by the dose detection unit 34 (step B1). That is, the control unit 211 acquires the dose of radiation irradiated to the subject. The control unit 211 functions as a dose acquisition unit.

[0084] Next, the control unit 211 calculates the number of times information based on the actual measurement value, based on the actual measurement value acquired in step B1 and the reference ESD acquired in step A5 (step B2). In the number of times information acquisition process, a case where the radiography order information includes the number of times information when the subject was previously subjected to dynamic radiography (step A2; YES) will be described. In this case, in step B2, the control unit 211 acquires a reference ESD according to the conditions related to the subject from the storage unit 212. Next, the control unit 211 calculates the number of times information based on the actual measurement value based on the actual measurement value acquired in step B1 and the acquired reference ESD. Next, the control unit 211 judges whether the number of times information based on the actual measurement value calculated in step B2 has reached a value smaller than the upper limit of the allowable range by a predetermined value (step B3). The upper limit of the allowable range is the number of times information acquired in the above-mentioned photographing condition determination processing step S1. The predetermined value is set in advance.

[0085] When the number-of-times information based on the actual measurement value has not reached a value that is a predetermined value smaller than the upper limit of the allowable range (step B3; NO), the control unit 211 ends this process.

[0086] A case where the information on the number of times based on the actual measurement value reaches a value smaller than the upper limit of the allowable range by a predetermined value (step B3; YES) will be described. In this case, the control unit 211 controls the generator 3 to stop irradiating the radiation R and terminates this process. And / or, in this case, the control unit 211 may display an alert on the display unit 214. That is, the control unit 211 stops the irradiation of radiation when the number-of-times information based on the actual measurement value exceeds a value that is a predetermined value smaller than the information based on the number of first plain X-ray imaging operations. The number-of-times information based on the actual measurement value is information based on the number of times of the third plain X-ray imaging based on the dose of radiation irradiated to the subject, which is acquired by the dose acquisition unit. The control unit 211 as an alert output unit outputs an alert when the number-of-times information based on the actual measurement value exceeds a value that is smaller than the information based on the number of first plain X-ray imaging by a predetermined value.

[0087] (others) During shooting by the photographing device 1 and the generating device 3, the control unit 211 displays on the display unit 214 the remaining time of the shooting time included in the shooting conditions determined in the above-mentioned shooting condition determination process. Alternatively, during shooting by the shooting device 1 and the generating device 3, the control unit 211 may notify the user of the remaining time of the shooting time included in the shooting conditions determined in the shooting condition determination process by outputting a sound or the like. In this case, the control unit 211 may count down the remaining time. This allows the technician performing shooting to know the remaining time of the shooting time even if the technician cannot see the display unit 214 during shooting.

[0088] A case will be described where radiation R is irradiated for a period exceeding the imaging time included in the imaging conditions determined in the imaging condition determination process described above during imaging by the imaging device 1 and the generating device 3. In this case, the control unit 211 controls the generating device 3 to stop irradiating radiation R. And / or, in this case, the control unit 211 may display an over-dose alert on the display unit 214. Alternatively, in this case, the control unit 211 may notify the user of the over-dose alert by outputting sound, light, or the like. The control unit 211 may differentiate the display form, type of audio, color of light, and the like of the over-dose alert from alerts of other imaging abnormalities. When an abnormality in imaging (other imaging abnormality) other than the case where radiation R is irradiated beyond the imaging time occurs, imaging must be stopped urgently. Therefore, an alert of the other imaging abnormality may be notified not only to the technician but also to the patient who is the subject. However, when radiation R is irradiated beyond the imaging time, imaging may be continued depending on the situation. Therefore, the control unit 211 may be capable of notifying only the technician of the over-dose alert so that the patient does not feel uneasy about imaging being continued even though the over-dose alert has been notified. For example, the control unit 211 notifies the over-dose alert only to the outside of the imaging room. Alternatively, the control unit 211 notifies the over-dose alert only to the imaging control device 21 (console). Alternatively, the control unit 211 does not notify the over-dose alert to a PDA (Personal Digital Assistance) attached to the imaging room. Alternatively, the control unit 211 does not notify the over-dose alert to the round cart.

[0089] <3.Effects> As described above, the shooting control device 21 of this embodiment includes an acquisition unit (control unit 211) that acquires information based on the number of simple X-ray shootings as information regarding the continuous shooting dose, which is the dose in a series of X-ray shootings, and a determination unit (control unit 211) that determines the shooting conditions for the series of X-ray shootings in accordance with the information based on the number of simple X-ray shootings acquired by the acquisition unit. This makes it possible to determine imaging conditions that will give an appropriate dose in a series of X-ray imaging based on information based on the number of times of simple X-ray imaging (information for the number of times). In other words, it is possible to control the dose in a series of X-ray imaging to be an appropriate value. In still image shooting, one radiation image is generated in one shooting. Therefore, even if the shooting conditions are inappropriate, the impact on the radiation exposure is minor. However, in dynamic image shooting, multiple frame images are generated in one shooting. Therefore, in dynamic image shooting, even in one shooting, errors from the appropriate shooting conditions accumulate for multiple frame images. As a result, in dynamic image shooting, differences in the settings of the shooting conditions have a greater impact on the radiation exposure than in still image shooting. In addition, in dynamic imaging, if the imaging is not performed under the appropriate imaging conditions and is deemed to be a failure and re-imaging is performed, the amount of radiation exposure will be much greater than in still image imaging. Therefore, it is important to set the appropriate imaging conditions before imaging.

[0090] The shooting control device 21 of this embodiment includes an acquisition unit (control unit 211) that acquires information based on the number of simple X-ray shootings as information regarding the continuous shooting dose, which is the dose in a series of X-ray shootings, and a presentation unit (control unit 211) that presents the shooting conditions for the series of X-ray shootings in accordance with the information based on the number of simple X-ray shootings acquired by the acquisition unit. This makes it possible to present imaging conditions that will give an appropriate dose in a series of X-ray imaging based on information based on the number of times of plain X-ray imaging (information for the number of times). In other words, it is possible to control the dose in a series of X-ray imaging so that it is an appropriate value.

[0091] In the imaging control device 21 of this embodiment, the imaging conditions in the series of X-ray imaging are conditions according to the subject. This makes it possible to determine and present the shooting conditions appropriate to the subject so that the radiation dose in a series of X-ray shots is at an appropriate value.

[0092] The shooting control device 21 of this embodiment includes an acquisition unit (control unit 211) that acquires information based on the number of first simple X-ray shootings as information regarding the continuous shooting dose, which is the dose in a series of X-ray shootings, a reception unit (control unit 211) that accepts input of the shooting conditions in the series of X-ray shootings, and an alert output unit (control unit 211) that outputs an alert based on the information based on the number of first simple X-ray shootings acquired by the acquisition unit and the shooting conditions in the series of X-ray shootings accepted by the reception unit. This allows the user to be notified when the imaging conditions for the series of X-ray imaging accepted by the accepting unit are not conditions that result in an appropriate dose. In other words, the dose in the series of X-ray imaging can be controlled to be an appropriate value.

[0093] In the imaging control device 21 of this embodiment, the alert output unit (control unit 211) outputs an alert when information based on the number of second simple X-ray imaging based on the imaging conditions in the series of X-ray imaging accepted by the accepting unit (control unit 211) exceeds information based on the number of first simple X-ray imaging. This makes it possible to notify the user when the number of times of information based on the imaging conditions in a series of X-ray imaging operations received by the reception unit exceeds the upper limit of the allowable range.

[0094] In the imaging control device 21 of this embodiment, a dose acquisition unit (control unit 211) is provided which acquires the dose of radiation irradiated to the subject, and the alert output unit (control unit 211) outputs an alert when information based on the number of third simple X-ray imaging based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value that is a predetermined value smaller than the information based on the number of first simple X-ray imaging. This makes it possible to notify the user before the number-of-times information based on the actual radiation dose measurement value acquired by the dose acquisition unit exceeds the upper limit of the allowable range.

[0095] The shooting control device 21 of this embodiment includes an acquisition unit (control unit 211) that acquires information based on the number of first simple X-ray shootings as information regarding the continuous shooting dose, which is the dose in a series of X-ray shootings, a reception unit (control unit 211) that accepts input of shooting conditions in the series of X-ray shootings, and a restriction unit (control unit 211) that restricts the setting of the shooting conditions or restricts the series of X-ray shootings based on the information based on the number of first simple X-ray shootings acquired by the acquisition unit and the shooting conditions in the series of X-ray shootings accepted by the reception unit. This makes it possible to restrict the setting of the imaging conditions in the series of X-ray imaging accepted by the accepting unit when the imaging conditions are not conditions that result in an appropriate dose. Or, in this case, the series of X-ray imaging can be restricted. In other words, the dose in the series of X-ray imaging can be controlled to be an appropriate value.

[0096] In the imaging control device 21 of this embodiment, the restriction unit (control unit 211) restricts the setting of the imaging conditions or restricts the series of X-ray imaging when information based on the number of second simple X-ray imaging based on the imaging conditions in the series of X-ray imaging received by the reception unit (control unit 211) exceeds information based on the number of first simple X-ray imaging. This makes it possible to restrict the setting of the imaging conditions in a series of X-ray imaging operations when the information on the number of times based on the imaging conditions in the series of X-ray imaging operations received by the reception unit exceeds the upper limit of the allowable range. Alternatively, in this case, it is possible to restrict the series of X-ray imaging operations.

[0097] The imaging control device 21 of this embodiment includes a dose acquisition unit (control unit 211) that acquires the dose of radiation irradiated to the subject, and a control unit 211 that stops the irradiation of radiation when information based on the number of third simple X-ray imaging based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value that is a predetermined value smaller than the information based on the number of first simple X-ray imaging. This makes it possible to stop irradiation of radiation before the number-of-times information based on the actual radiation dose measured by the dose acquisition unit exceeds the upper limit of the allowable range.

[0098] In the imaging control device 21 of this embodiment, the information based on the number of times the simple X-ray imaging is performed is information corresponding to at least one of the subject's age, the subject's gender, the subject's physique, the dose in the subject's previous X-ray imaging, and the reference dose. This makes it possible to control the dose in a series of X-ray examinations to be an appropriate value based on information based on the number of simple X-ray examinations (number of times information) corresponding to at least one of the subject's age, the subject's sex, the subject's physique, the dose in the subject's previous X-ray examinations, and the reference dose.

[0099] In the imaging control device 21 of this embodiment, the acquisition unit (control unit 211) acquires information based on the number of times of the plain X-ray imaging from a radiology information system. This makes it easy to obtain information based on the number of plain X-rays taken.

[0100] In the imaging control device 21 of this embodiment, the imaging conditions are at least one of a tube voltage, a tube current, a frame rate, and an imaging time. This makes it possible to set at least one of the tube voltage, tube current, frame rate, and imaging time so that the radiation dose in a series of X-ray imaging is an appropriate value.

[0101] The present invention has been described above based on the above embodiment, but the description of the above embodiment is merely a preferred example of the radiation imaging system according to the present invention, and the present invention is not limited to this. For example, the imaging conditions in a series of X-ray imaging based on information based on the number of times of plain X-ray imaging may not be conditions according to the subject as long as the conditions are determined to be appropriate by a doctor or the like.

[0102] In the above description, a hard disk, a non-volatile semiconductor memory, or the like 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. As other computer-readable media, a portable recording medium such as a CD-ROM can be used. Furthermore, a carrier wave can be used as a medium for providing data for the program according to the present invention via a communication line. [Explanation of symbols]

[0103] 100 Shooting System 1. Imaging device 2. Image Management System 21 Shooting control device 211 control unit (acquisition unit, decision unit, presentation unit, reception unit, alert output unit, restriction unit) 212 Storage section 213 Communications Department 214 Display section 215 Operation section 22 Image management device 221 Control Unit 222 Storage section 223 Communications Department 3. Generator 31 Generator 32 Irradiation switch 33 Radiation source 34 Dose detection unit 4.RIS

Claims

1. an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a determination unit that determines imaging conditions for the series of X-ray imaging operations in accordance with information based on the number of times of the simple X-ray imaging operations acquired by the acquisition unit; An imaging control device comprising:

2. an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a presentation unit that presents imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; An imaging control device comprising:

3. 3. The imaging control device according to claim 1, wherein imaging conditions in the series of X-ray imaging are conditions according to an object to be photographed.

4. an acquisition unit that acquires information based on the number of first simple X-ray imaging operations as information on a continuous imaging dose, which is a dose in a series of X-ray imaging operations; a reception unit that receives an input of imaging conditions for the series of X-ray imaging; an alert output unit that outputs an alert based on information based on the number of times of the first plain X-ray imaging acquired by the acquisition unit and imaging conditions in the series of X-ray imaging accepted by the acceptance unit; An imaging control device comprising:

5. 5. The imaging control device according to claim 4, wherein the alert output unit outputs an alert when information based on the number of second simple X-ray imaging based on imaging conditions in the series of X-ray imaging accepted by the accepting unit exceeds information based on the number of first simple X-ray imaging.

6. a dose acquisition unit that acquires a dose of radiation irradiated to a subject; 5. The imaging control device according to claim 4, wherein the alert output unit outputs an alert when information based on the number of third simple X-ray imaging operations based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value smaller than a predetermined value than the information based on the number of first simple X-ray imaging operations.

7. an acquisition unit that acquires information based on the number of first simple X-ray imaging operations as information on a continuous imaging dose, which is a dose in a series of X-ray imaging operations; a reception unit that receives an input of imaging conditions for the series of X-ray imaging; a limiting unit that limits setting of the imaging conditions or limits the series of X-ray imaging based on information based on the number of times of the first simple X-ray imaging acquired by the acquiring unit and imaging conditions in the series of X-ray imaging accepted by the accepting unit; and An imaging control device comprising:

8. 8. The imaging control device according to claim 7, wherein the restriction unit restricts setting of the imaging conditions or restricts the series of X-ray imaging when information based on the number of second simple X-ray imaging based on the imaging conditions in the series of X-ray imaging accepted by the acceptance unit exceeds information based on the number of first simple X-ray imaging.

9. a dose acquisition unit for acquiring a dose of radiation irradiated to a subject; a control unit that stops the irradiation of radiation when information based on the number of third simple X-ray imaging operations based on the dose of radiation irradiated to the subject acquired by the dose acquisition unit exceeds a value smaller than a predetermined value than the information based on the number of first simple X-ray imaging operations; The imaging control device according to claim 7 .

10. 8. The imaging control device according to claim 1, wherein the information based on the number of times the simple X-ray imaging has been performed is information corresponding to at least one of the subject's age, the subject's sex, the subject's physique, the dose in the subject's previous X-ray imaging, and a reference dose.

11. The imaging control device according to claim 1 , wherein the acquisition unit acquires the information based on the number of times the plain X-ray imaging is performed from a radiology information system.

12. 8. The imaging control device according to claim 1, wherein the imaging condition is at least one of a tube voltage, a tube current, a frame rate, and an imaging time.

13. an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a determination step of determining imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired in the acquisition step; A shooting control method comprising:

14. an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a presenting step of presenting imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquiring step; A shooting control method comprising:

15. an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a receiving step of receiving an input of imaging conditions for the series of X-ray imaging; an alert output step of outputting an alert based on information based on the number of times of the plain X-ray photography acquired in the acquisition step and the photography conditions in the series of X-ray photography accepted in the acceptance step; A shooting control method comprising:

16. an acquisition step of acquiring information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is the dose in a series of X-ray photography; a receiving step of receiving an input of imaging conditions for the series of X-ray imaging; a limiting step of limiting setting of the imaging conditions or limiting the series of X-ray imaging based on information based on the number of times of the plain X-ray imaging acquired in the acquiring step and imaging conditions in the series of X-ray imaging accepted in the accepting step; A shooting control method comprising:

17. The computer of the imaging control device, an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a determination unit that determines imaging conditions for the series of X-ray imaging operations in accordance with information based on the number of times of the simple X-ray imaging operations acquired by the acquisition unit; A program that functions as a

18. The computer of the imaging control device, an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a presentation unit that presents imaging conditions for the series of X-ray imaging in accordance with information based on the number of times of the simple X-ray imaging acquired by the acquisition unit; A program that functions as a

19. The computer of the imaging control device, an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a reception unit for receiving an input of imaging conditions for the series of X-ray imaging; an alert output unit that outputs an alert based on information based on the number of times of the plain X-ray imaging acquired by the acquisition unit and imaging conditions in the series of X-ray imaging accepted by the acceptance unit; A program that functions as a

20. The computer of the imaging control device, an acquisition unit that acquires information based on the number of times of simple X-ray photography as information regarding continuous photography dose, which is a dose in a series of X-ray photography; a reception unit for receiving an input of imaging conditions for the series of X-ray imaging; a limiting unit that limits setting of the imaging conditions or limits the series of X-ray imaging based on information based on the number of times of the simple X-ray imaging acquired by the acquiring unit and imaging conditions in the series of X-ray imaging accepted by the accepting unit; A program that functions as a

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