Radiation image photographing device, program, information processing device, and radiation image photographing method

Abstract

To provide a radiation image photographing device, a program, an information processing device, and a radiation image photographing method capable of identifying a lesioned part during the operation.SOLUTION: In one embodiment, a radiation image photographing device is provided. This radiation image photographing device includes a first detector, a second detector, and an information processing device. The first detector is a portable type and is configured to be able to detect one of a pair of radiations emitted in different directions from a subject by radioactive decay. The second detector is a stationary type and is configured to be able to detect the other of the pair of radiations. The information processing device includes a first detection processing unit and a second detection processing unit. The first detection processing unit is configured to be able to generate first detection information including positional information of an emission source of a radiation on the basis of the detection result from the first detector. The second detection processing unit is configured to be able to generate second detection information including the positional information of the emission source on the basis of the detection result from the first detector and the detection result from the second detector.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a radiographic imaging apparatus, a program, an information processing apparatus, and a radiographic imaging method. [Background technology]

[0002] Positron-emitting nuclides in glucose analogue molecules 18 PET (positron emission tomography) scans using PET agents such as F-labeled FDG (fluorodeoxyglucose), radioisotopes, or radionuclides accumulate in lesions such as cancer and inflammation, making it easier to detect lesions in the images taken.

[0003] Furthermore, a technique for identifying a lesion using a Compton camera has also been proposed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-117116 Summary of the Invention [Problem to be solved by the invention]

[0005] Although FDG-PET images make it easier to find lesions, it is often difficult to identify the lesion during resection surgery, especially when the lesion is in a lymph node. In addition, the PET device is large, making it difficult to take images using the device during surgery.

[0006] In view of the above circumstances, the present invention provides a radiographic imaging apparatus, a program, an information processing apparatus, and a radiographic imaging method that are capable of identifying a lesion during surgery. [Means for solving the problem]

[0007] According to one aspect of the present invention, there is provided a radiographic imaging device. The radiographic imaging device includes a first detector, a second detector, and an information processing device. The first detector is portable and configured to detect one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions. The second detector is stationary and configured to detect the other of the pair of radiations. The information processing device includes a first detection processing unit and a second detection processing unit. The first detection processing unit is configured to generate first detection information including position information of a radiation emission source based on a detection result of the first detector. The second detection processing unit is configured to generate second detection information including position information of the emission source based on the detection result of the first detector and the detection result of the second detector.

[0008] According to one aspect of the present invention, it becomes possible to identify a lesion during surgery. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram showing an example of the configuration of a radiation image capturing apparatus 1 according to an embodiment of the present invention. [Figure 2] FIG. 1 is a diagram for explaining a radiation detection method. [Figure 3] FIG. 2 is a diagram showing an example of the appearance of a detector 2 which is a first detector. [Figure 4] FIG. 2 is a diagram showing an example of the configuration of a camera 24. [Figure 5] FIG. 2 is a diagram for explaining the configuration of a detector 3 which is a second detector. [Figure 6] FIG. 2 is a diagram showing the configuration of an information processing device 5. [Figure 7] FIG. 2 is a block diagram showing a functional configuration of an information processing device 5. [Figure 8] FIG. 1 is an activity diagram showing the flow of lesion resection. [Figure 9] FIG. 1 is a diagram showing an example of an image taken by a PET device before surgery. [Figure 10]FIG. 1 is an activity diagram showing the flow of lesion identification and resection. [Figure 11] FIG. 2 is an activity diagram showing the flow of operations of the information processing device 5. [Figure 12] FIG. 2 is an activity diagram showing the flow of operations of the information processing device 5. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. Various features shown in the following embodiments can be combined with each other.

[0011] Incidentally, the program for realizing the software appearing in this embodiment may be provided as a non-transitory computer-readable medium, or may be provided so that it can be downloaded from an external server, or may be provided so that the program is started on an external computer and its functions are realized on a client terminal (so-called cloud computing).

[0012] In this embodiment, the term "unit" may also include, for example, a combination of hardware resources implemented by a circuit in the broad sense and software information processing that can be specifically realized by these hardware resources. In addition, various types of information are handled in this embodiment, and this information may be represented by, for example, physical values ​​of signal values ​​representing voltages and currents, high and low signal values ​​as a binary bit set consisting of 0 or 1, or quantum superposition (so-called quantum bits), and communication and calculations may be performed on a circuit in the broad sense.

[0013] In addition, a circuit in the broad sense is a circuit realized by at least appropriately combining a circuit, circuitry, a processor, a memory, etc. That is, it includes an application specific integrated circuit (ASIC), a programmable logic device (e.g., a simple programmable logic device (SPLD), a complex programmable logic device (CPLD), and a field programmable gate array (FPGA)), etc.

[0014] 1. Overall structure 1 is a diagram showing an example of the configuration of a radiographic image capturing apparatus 1 according to an embodiment of the present invention. As shown in the figure, the radiographic image capturing apparatus 1 includes a detector 2 (first detector), a detector 3 (second detector), a measuring device 4, and an information processing device 5.

[0015] The detector 2 is portable and configured to be capable of detecting one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions. The radiations are emitted in directions that are, for example, 180 degrees apart. The portable detector is one that can be held and operated by the surgeon, and more specifically, one that can be inserted into the abdominal cavity or thoracic cavity of a patient for use. For this reason, the detector 2 is sized to be insertable into a port used in laparoscopic surgery or thoracoscopic surgery. The detector 2 may also be of a type that is used in the surgical field during laparotomy. Details of the detector 2 will be described later.

[0016] The detector 3 is a stationary type and is configured to be able to detect the other of the pair of radiations. The stationary type is a type that is installed in a predetermined position, for example, on an operating table, and specifically, is installed on the side of the operating table opposite to the surface on which the patient lies supine.

[0017] The measuring device 4 is configured to be able to measure the relative position of the detector 2 with respect to the detector 3, and is, for example, a device that performs optical measurement.

[0018] The information processing device 5 processes the detection results of the detectors 2 and 3, and generates an image that can be visually recognized by the operator. Details of the information processing device 5 will be described later.

[0019] This radiographic imaging device 1 is 18 The radiation imaging device 1 detects and images radiation emitted by nuclide N, and will now be described with reference to the detection of radiation. FIG. 2 is a diagram illustrating a radiation detection method. As shown in the figure, an absorber 91 and a scatterer 92 are used to detect radiation. The absorber 91 is an absorber for the Compton camera and also serves as a detector for the PET device. The scatterer 92 is a scatterer for the Compton camera. In this configuration, the combination of the scatterer 92 and the absorber 91 operates as a Compton camera to detect radiation emitted by nuclide N, and the combination of the absorber 91 and another absorber 91 facing the absorber 91 operates as a PET device to detect radiation emitted by nuclide N. The radiation imaging device 1 detects radiation by utilizing these principles.

[0020] 2. Detector 2 FIG. 3 is a diagram showing an example of the appearance of detector 2, which is the first detector. As shown in the figure, detector 2 includes a gripping unit 21 and an insertion unit 23. The gripping unit 21 is a portion held by the surgeon during surgery, and includes an instruction unit 22 and a measured portion 41. The instruction unit 22 is a switch for issuing an instruction to switch between a Compton mode in which radiation is detected only by detector 2 and a PET mode in which radiation is detected by detectors 2 and 3. In other words, the instruction unit 22 is configured to be able to send an instruction to the output unit of the information processing device 5 (described later) to output either first display information or second display information. The first display information indicates the detection result in the Compton mode, and the second display information indicates the detection result in the PET mode. The measured portion 41 is a marker used for measurement by the measurement device 4. The insertion unit 23 is a portion inserted into the abdominal cavity or thoracic cavity of a patient, and includes a camera 24 at its tip.

[0021] Here, the camera 24 will be described. FIG. 4 is a diagram showing an example of the configuration of the camera 24. Note that in FIG. 4, the cylindrical housing is shown in a transparent state. As shown in the figure, the camera 24 includes a plurality of units, each of which includes a scatterer 241, a substrate 242, and a communication unit 243, and these units are arranged in a stacked state. The scatterer 241 scatters radiation and corresponds to the scatterer 92 shown in FIG. 2. The substrate 242 is equipped with an absorber and a circuit for generating an electrical signal based on the radiation absorbed by the absorber. The absorber mounted on the substrate 242 corresponds to the absorber 91 shown in FIG. 2. The communication unit 243 transmits the electrical signal generated by the substrate 242 to the information processing device 5 via the cable 25.

[0022] 3. Detector 3 5 is a diagram illustrating the configuration of detector 3, which is the second detector. As shown in the figure, detector 3 includes an absorber 31. This absorber 31 corresponds to absorber 91 shown in FIG. 2. Although not shown, detector 3 also includes a circuit for generating an electrical signal based on the radiation absorbed by absorber 31, and a communication unit for transmitting the generated electrical signal to information processing device 5 via a cable or the like.

[0023] The absorber 31 is provided on the side of the operating table B opposite the side on which the patient P lies supine, that is, in a position facing the camera 24 when the detector 2 is used during surgery. The detector 3 (second detector) has a curved surface facing the detector 2 (first detector). The absorber 31 itself is made up of a combination of rectangular parallelepipeds.

[0024] 4. Measurement equipment 4 The measuring device 4 measures the relative position of the detector 2 with respect to the detector 3, and more specifically, it optically measures the positions of the measured part 41 provided in the detector 2 and the measured part (not shown) provided in the detector 3, and identifies the relative positions of the two. Note that the measuring device 4 itself uses existing technology, and therefore a detailed description thereof will be omitted.

[0025] 5. Information Processing Device 5 Next, the configuration of the information processing device 5 will be described. Fig. 6 is a diagram showing the configuration of the information processing device 5. As shown in the figure, the information processing device 5 has a processing unit 51, a storage unit 52, a temporary storage unit 53, an external device connection unit 54, and a communication unit 55, and these components are electrically connected within the information processing device 5 via a communication bus 56.

[0026] The processing unit 51 is realized by, for example, a central processing unit (CPU), and operates according to a predetermined program stored in the storage unit 52 to realize various functions.

[0027] The storage unit 52 is a non-volatile storage medium that stores various information. This is realized by a storage device such as a hard disk drive (HDD) or a solid state drive (SSD). The storage unit 52 can also be arranged in another device that can communicate with the information processing device 5.

[0028] The temporary storage unit 53 is a volatile storage medium, which is realized by a memory such as a random access memory (RAM), and stores information (arguments, arrays, etc.) that is temporarily required when the processing unit 51 operates.

[0029] The external device connection unit 54 is a connection unit that conforms to standards such as Universal Serial Bus (USB) and High-Definition Multimedia Interface (HDMI), and allows connection of input devices such as keyboards and display devices such as monitors.

[0030] The communication unit 55 is a communication means conforming to, for example, a local area network (LAN) standard, and realizes communication between the information processing device 5 and the local area network or a network such as the Internet via the local area network.

[0031] The information processing device 5 can be a general-purpose server computer, a personal computer, or the like, and the information processing device 5 can also be configured using a plurality of computers.

[0032] Next, the functions of the information processing device 5 will be described. The information processing device 5 constitutes the radiographic imaging device 1, and operates in accordance with a program to realize each of the functional units described below. This program causes a computer to operate or function as an information processing device. This program can be recorded on a computer-readable recording medium such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor storage device, and the recording medium on which this program is recorded, i.e., the computer-readable recording medium on which the program for causing a computer to function as the information processing device 5 is recorded, can be used for distribution, etc.

[0033] 7 is a block diagram showing the functional configuration of the information processing device 5. As shown in the figure, the information processing device 5 includes a detection processing unit 501 which is a first detection processing unit, a detection processing unit 502 which is a second detection processing unit, a display information generation unit 503, a reception unit 504, an input unit 505, and an output unit 506.

[0034] The detection processing unit 501 is configured to be able to generate first detection information including position information of the radiation emission source based on the detection result of the detector 2. At this time, the detection processing unit 501 may correct the first detection information in accordance with the measurement result of the measurement device 4. This first detection information is used as an output in the Compton mode.

[0035] The detection processing unit 502 is configured to be able to generate second detection information including position information of the emission source based on the detection results of the detector 2 and the detection results of the detector 3. At this time, the detection processing unit 502 may correct the second detection information in accordance with the measurement results of the measurement device 4. This second detection information is used as an output in the PET mode.

[0036] The display information generating unit 503 is configured to be able to generate first display information obtained by imaging the first detection information and second display information obtained by imaging the second detection information. In this case, the display information generating unit 503 may superimpose the first display information or the second display information on an image such as an image output by a laparoscope, an image output by a thoracoscope, or an image output by an ultrasound diagnostic device.

[0037] The receiving unit 504 is configured to be able to receive an instruction as to whether the output unit 506 should output the first display information or the second display information, that is, whether to output in Compton mode or PET mode. Specifically, the receiving unit 504 receives, as an instruction, a signal corresponding to the operation of the instruction unit 22 of the detector 2. Note that, in cases where the detector 2 does not have the instruction unit 22, the instruction may be received from a keyboard (not shown) or the like connected to the information processing device 5.

[0038] The input unit 505 is configured to be able to input an image output by any one of the laparoscope 7, the thoracoscope, and the ultrasound diagnostic device 8. The image input to the input unit 505 is used when the display information generation unit 503 superimposes the first display information or the second information.

[0039] The output unit 506 outputs either the first display information or the second display information to the display device 6.

[0040] 6. Method of taking radiographic images Next, a method for capturing a radiation image will be described. The radiation image capturing method includes a first step and a second step. The first step generates first detection information including position information of a radiation emission source based on a detection result from a portable first detector configured to be able to detect one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions. The second step generates second detection information including position information of the emission source based on the detection result from the first detector and the detection result from a stationary second detector configured to be able to detect the other of the pair of radiations. The radiations are emitted in directions that are, for example, 180 degrees apart from each other.

[0041] The flow of capturing a radiation image will now be specifically described. Figure 8 is an activity diagram showing the flow of lesion resection.

[0042] First, as a preoperative procedure, the surgeon or his / her assistant administers FDG to the patient (A101). Then, the surgeon determines whether preoperative PET imaging is necessary (A102). If it is determined that PET imaging is necessary, FDG-PET imaging is performed using a PET device (A103). After that, the surgeon or other person performs pre-resection processing of the lesion (A104). Pre-resection processing includes administering anesthesia to the patient and attaching a laparoscopic port, etc. Then, a resection of the lesion is performed, during which the lesion is identified and removed (A105). When identifying this lesion, imaging is performed using the radiographic imaging device 1, and this processing will be described later. After the lesion is removed, post-resection processing is performed (A106), and the resection is completed. Post-resection processing includes suturing the incision made when attaching the laparoscopic port, etc., and waking the patient from anesthesia, etc.

[0043] An image taken by a PET device before surgery may look like the one shown in Figure 9. Although the presence of lymph node L in this image can be confirmed, it is difficult to identify which of the multiple lymph nodes it is. Therefore, processing is required during surgery to identify the affected area.

[0044] Next, the details of the lesion identification and resection process of A105 will be explained. Figure 10 is an activity diagram showing the flow of lesion identification and resection.

[0045] First, the operator operates the instruction unit 22 to switch to the Compton mode, in which the image output from the output unit 506 is based on the first display information (A201). Since the Compton mode can detect radiation from a relatively wide area, the operator performs a wide-area survey in the Compton mode (A202). This wide-area survey is continued until a lesion is detected ([Lesion not detected] in A203, [Continue] in A204).

[0046] When a lesion is detected in the Compton mode ([Lesion Detected] in A203), the surgeon operates the instructing unit 22 to switch to the PET mode (A205), in which the image output from the output unit 506 is based on the second display information. Because the PET mode can detect radiation from a relatively narrow range, the surgeon measures the lesion detected in the PET mode (A206) ​​and confirms the detailed location of the lesion (A207). Based on these results, the surgeon determines whether or not the lesion needs to be resected (A208). The determination of whether or not the lesion needs to be resected is made, for example, by evaluating the malignancy of the lesion as one of the indices. When the surgeon determines that the lesion is a resection target ([Resection Target] in A208), the surgeon resects the lesion (A209) and submits the resected lesion to a pathological diagnosis (A210). Instead of a pathological diagnosis, the radiographic imaging device 1 may be operated in the PET mode to capture an image of the resected lesion and confirm the resected area.

[0047] Next, the surgeon operates the instruction unit 22 to switch to Compton mode (A201), and in Compton mode, checks for the presence or absence of a residual lesion. This check for the presence or absence of a residual lesion is performed both when the surgeon resects the lesion (A209) and when the surgeon does not determine that the lesion is a target for resection ([Not Target] in A208). If a residual lesion is detected, the same process is repeated, and if no residual lesion is detected, the surgeon decides to end the lesion identification and resection process ([Lesion Not Detected] in A203, [End] in A204).

[0048] Next, the flow of operations of the information processing device 5 when the surgeon is identifying and resecting a lesion will be described. Fig. 11 is an activity diagram showing the flow of operations of the information processing device 5.

[0049] During operation of the information processing device 5 (A301: [Continue]), if the reception unit 504 receives an output instruction in Compton mode (A302: [Compton Mode]), the detection processing unit 501 performs detection processing to generate first detection information (A303), the display information generation unit 503 generates first display information based on the first detection information (A304), and the output unit 506 outputs the first display information to the display device 6 (A305). On the other hand, if the reception unit 504 receives an output instruction in PET mode (A302: [PET Mode]), the detection processing unit 502 performs detection processing to generate second detection information (A306), the display information generation unit 503 generates second display information based on the second detection information (A307), and the output unit 506 outputs the second display information to the display device 6 (A308). Note that the information processing device 5 terminates its operation when it receives a shutdown instruction, for example (A301: [End]).

[0050] Furthermore, the information processing device 5 can generate the first display information and the second display information in parallel, and switch only the output in response to an instruction from the instruction unit 22. Fig. 12 is an activity diagram showing the flow of operations of the information processing device 5.

[0051] While the information processing device 5 is operating (A401: [Continue]), the detection processing unit 501 performs detection processing to generate first detection information (A402), and in parallel with this, the detection processing unit 502 performs detection processing to generate second detection information (A403). The display information generation unit 503 generates first display information based on the first detection information and generates second display information based on the second detection information (A404). When the reception unit 504 receives an output instruction in Compton mode (A405: [Compton Mode]), the output unit 506 outputs the first display information to the display device 6 (A406). When the reception unit 504 receives an output instruction in PET mode (A405: [PET Mode]), the output unit 506 outputs the second display information to the display device 6 (A407). Note that the information processing device 5 terminates its operation when it receives a shutdown instruction, etc. (A401: [End]).

[0052] 7.Other The present invention may be provided in the following aspects. In the radiation image capturing apparatus, the first detector has a size that allows it to be inserted into a port used in laparoscopic surgery or thoracoscopic surgery. The radiation image capturing apparatus further comprises a measurement device configured to be able to measure a relative position of the first detector with respect to the second detector, the first detection processing unit correcting the first detection information in accordance with a measurement result of the measurement device, and the second detection processing unit correcting the second detection information in accordance with the measurement result of the measurement device. In the radiographic imaging device, the information processing device includes a display information generation unit, and the display information generation unit is configured to be able to generate first display information that is an image of the first detection information and second display information that is an image of the second detection information. In the radiographic imaging device, the information processing device includes an output unit and a reception unit, the output unit is configured to be able to output either the first display information or the second display information, and the reception unit is configured to be able to receive an instruction as to whether the output unit should output the first display information or the second display information. In the radiation image capturing device, the first detector includes an instruction unit, and the instruction unit is configured to be able to send an instruction to the output unit as to whether to output the first display information or the second display information. In the radiation image capturing device, the information processing device includes an input unit, the input unit is configured to be able to input an image output by any one of a laparoscope, a thoracoscope, and an ultrasound diagnostic device, and the display information generation unit is configured to be able to superimpose the first display information or the second display information on the image. In the radiation image capturing apparatus, the second detector has a curved surface facing the first detector. A program that causes a computer to operate as an information processing device, and causes the computer to function as the information processing device. A computer-readable recording medium on which a program for causing a computer to operate as an information processing device is recorded, the computer-readable recording medium on which a program for causing a computer to function as the information processing device is recorded. An information processing device comprising a first detection processing unit and a second detection processing unit, wherein the first detection processing unit is configured to generate first detection information including position information of a radiation emission source based on a detection result of a portable first detector configured to be able to detect one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions, and the second detection processing unit is configured to generate second detection information including position information of the emission source based on the detection result of the first detector and the detection result of a stationary second detector configured to be able to detect the other of the pair of radiations. A radiation imaging method comprising a first step and a second step, wherein the first step generates first detection information including position information of an emission source of radiation based on a detection result of a portable first detector configured to be able to detect one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions, and the second step generates second detection information including position information of the emission source based on the detection result of the first detector and a detection result of a stationary second detector configured to be able to detect the other of the pair of radiations. Of course, this is not the case. [Explanation of symbols]

[0053] 1: Radiography equipment 2: Detector 3: Detector 4: Measuring equipment 5: Information processing equipment 6:Display device 7:Laparoscopy 8: Ultrasound diagnostic equipment 18F: positron-emitting nuclide 21: Grip part 22: Instruction part 23: Insertion section 24: Camera 25: Cable 31: Absorbent 41: Measured part 51: Processing section 52: Storage section 53:Temporary storage 54: External device connection 55: Communications Department 56: Communication bus 91: Absorbent 92: Scatterer 241 :Scatterer 242: Substrate 243: Communications Department 501: Detection processing unit 502: Detection processing unit 503:Display information generation section 504: Reception 505: Input section 506: Output section B: Operating table L: Lymph node N: nuclide P:Patient

Claims

1. A radiation imaging device, a first detector, a second detector, and an information processing device; the first detector is portable and configured to detect one of a pair of radiations generated by radioactive decay from the specimen and emitted in different directions; the second detector is a stationary detector and is configured to detect the other radiation of the pair of radiations; the information processing device includes a first detection processing unit and a second detection processing unit; the first detection processing unit is configured to be able to generate first detection information including position information of an emission source of the radiation based on a detection result of the first detector; the second detection processing unit is configured to be able to generate second detection information including position information of the emission source based on the detection result of the first detector and the detection result of the second detector. Radiography equipment.

2. 2. The radiation image capturing apparatus according to claim 1, the first detector is sized to be insertable into a port used in laparoscopic surgery or thoracoscopic surgery; Radiography equipment.

3. 3. The radiation image capturing apparatus according to claim 1, Equipped with measuring equipment, the measurement device is configured to be able to measure a relative position of the first detector with respect to the second detector; the first detection processing unit corrects the first detection information in accordance with a measurement result of the measurement device; the second detection processing unit corrects the second detection information in accordance with the measurement result of the measurement device. Radiography equipment.

4. 4. The radiographic imaging apparatus according to claim 1, the information processing device includes a display information generation unit, the display information generation unit is configured to be able to generate first display information obtained by imaging the first detection information and second display information obtained by imaging the second detection information. Radiography equipment.

5. 5. The radiographic imaging apparatus according to claim 4, the information processing device includes an output unit and a reception unit; The output unit is configured to be able to output either the first display information or the second display information, the receiving unit is configured to be able to receive an instruction as to whether the output unit is to output the first display information or the second display information. Radiography equipment.

6. 6. The radiographic imaging apparatus according to claim 5, the first detector includes an indicator; the instruction unit is configured to be able to send an instruction to the output unit as to whether to output the first display information or the second display information. Radiography equipment.

7. 7. The radiation image capturing apparatus according to claim 4, the information processing device includes an input unit, the input unit is configured to be able to input an image output by any one of a laparoscope, a thoracoscope, and an ultrasound diagnostic device; the display information generation unit is configured to be able to superimpose the first display information or the second display information on the image. Radiography equipment.

8. 7. The radiographic imaging apparatus according to claim 1, the second detector has a curved surface facing the first detector; Radiography equipment.

9. A program that causes a computer to operate as an information processing device, A computer is caused to function as the information processing device according to any one of claims 1 to 8. program.

10. A recording medium on which a program for causing a computer to operate as an information processing device is recorded, A computer-readable medium storing a program for causing a computer to function as the information processing device according to any one of claims 1 to 8. Recording medium.

11. An information processing device, a first detection processing unit and a second detection processing unit; the first detection processing unit is configured to be able to generate first detection information including position information of an emission source of the radiation based on a detection result of a portable first detector configured to be able to detect one of a pair of radiations generated by radioactive decay from a specimen and emitted in different directions; the second detection processing unit is configured to be able to generate second detection information including position information of the emission source based on a detection result of the first detector and a detection result of a stationary second detector configured to be able to detect the other of the pair of radiations. Information processing device.

12. A radiographic imaging method, comprising: The method includes a first step and a second step, The first step generates first detection information including position information of a radiation emission source based on a detection result of a portable first detector configured to be able to detect one of a pair of radiations generated by radioactive decay from the specimen and emitted in different directions; The second step generates second detection information including position information of the emission source based on the detection result of the first detector and the detection result of a stationary second detector configured to be able to detect the other of the pair of radiations. Radiography methods.

Images