Dose management system, dose management device, dose management method and program

Abstract

To manage the radiation dose of a patient more properly in nuclear scanning.SOLUTION: A dose management system 100 includes: a scanning information acquisition unit (a control unit 31) for automatically acquiring specific information regarding a nuclear scanning (including the name of the nuclear scanning or information in one scanning) from a storage device (including a storage unit 11 of an RIS server 10 or a storage unit 21 of a medical shooting device 20); and a relation unit (a control unit 31) for relating the specific information regarding the nuclear scanning and information (a reference value) of a diagnosis reference level for the nuclear scanning to each other.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a dose management system, a dose management device, a dose management method, and a program. [Background technology]

[0002] In the medical field, examination devices such as SPECT (Single Photon Emission Computed Tomography) devices and PET (Positoron Emission Tomography) devices are used to perform nuclear medicine examinations. In SPECT and PET examinations, a radiopharmaceutical is administered to the patient, and images are taken by detecting gamma rays emitted from the radioisotopes contained in the radiopharmaceutical. It is important to properly manage the patient's exposure dose to these gamma rays.

[0003] For example, Patent Document 1 describes the following radiation exposure dose management technology. The radiation exposure dose management device acquires information such as the type of radiopharmaceutical, administration time, administration amount, examination method, etc. in a nuclear medicine examination, and then calculates the radiation exposure dose of the patient based on the acquired information.

[0004] In nuclear medicine examinations, a radiopharmaceutical may be administered twice in one examination or once in one examination. When a radiopharmaceutical is administered twice in one examination, the dosage is generally smaller than when it is administered once in each of two examinations. In other words, the standard value for the dosage of a radiopharmaceutical when it is administered twice in one examination is less than the sum of the standard values ​​when it is administered once in each of two examinations. For example, if a radiopharmaceutical is administered twice in one examination, but the sum of the reference values ​​for one administration each in two examinations is referred to and an overdose is determined, a reference value higher than the actual reference value is referred to, and there is a risk that the overdose will go unnoticed. If the radiopharmaceutical is administered in excess, the patient will also be exposed to excessive radiation. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2020-035412 A Summary of the Invention [Problem to be solved by the invention]

[0006] Patent Document 1 does not disclose any standard values ​​for the dosage of radiopharmaceuticals corresponding to the examination to be performed, and therefore cannot solve the above problem.

[0007] An object of the present invention is to provide a dose management system, a dose management device, a dose management method, and a program that can more appropriately manage a patient's exposure dose in a nuclear medicine examination. [Means for solving the problem]

[0008] In order to solve the above problem, the dose management system according to claim 1 comprises: Nuclear Medicine one inspection Test administration, including the number of doses of radiopharmaceutical administered to the patient an examination information acquisition unit that automatically acquires information from a storage device; The first inspection The number of administrations in Corresponding to This is the standard dose. Diagnostic reference level information and a presentation unit that associates the test administration information with the test administration information and presents information indicating the correspondence; Equipped with.

[0009] The invention described in claim 2 is the dose management system described in claim 1, The information indicating the correspondence relationship presented by the presentation unit is the dosage in the one test relative to the reference value. .

[0010] The invention described in claim 3 is 1 In the dose management system according to the present invention, a determination unit that determines whether or not the dose of the radiopharmaceutical in the one examination is within a reference value based on the information on the diagnostic reference level and the examination administration information, The information indicating the correspondence relationship presented by the presentation unit is a result of judging whether or not the dose of the radiopharmaceutical in the one examination is within a reference value. .

[0011] The invention described in claim 4 is1 In the dose management system according to the present invention, The test administration information includes at least one of a type of radiopharmaceutical and a test site. .

[0012] The invention described in claim 5 is the dose management system described in claim 1, The test administration information is information from a Radiopharmaceutical Radiation Dose Structured Report (RRDSR).

[0013] The invention described in claim 6 is 1 In the dose management system according to the present invention, The test administration information is a test name, The number of administrations is included in the test name. .

[0014] The invention described in claim 7 is 6 In the dose management system according to the present invention, A radiation information device is provided. The radiation information device includes the examination information acquisition unit, The examination information acquiring unit acquires the examination name from the storage device.

[0015] The invention described in claim 8 is 6 In the dose management system according to the present invention, A dose management device; a radiation information device including the storage device; Equipped with The radiation dose management device includes the examination information acquisition unit, The examination information acquiring unit acquires the examination name from the storage device of the radiology information device.

[0016] The dose management device according to claim 9, Nuclear Medicine one inspection Test administration, including the number of doses of radiopharmaceutical administered to the patient an examination information acquisition unit that automatically acquires information from a storage device; The first inspection The number of administrations in Corresponding to This is the standard dose. Diagnostic reference level information and a presentation unit that associates the test administration information with the test administration information and presents information indicating the correspondence; and, Equipped with.

[0017] The dose management method according to claim 10, Nuclear Medicine one inspection Test administration, including the number of doses of radiopharmaceutical administered to the patientan inspection information acquisition step of automatically acquiring information from a storage device; The first inspection The number of administrations in Corresponding to This is the standard dose. Diagnostic reference level information and A presentation device that presents information indicating the correspondence between the test and administration information and the test and administration information. The process and has.

[0018] The program according to claim 11, The computer in the dose management system is Nuclear Medicine one inspection Test administration, including the number of doses of radiopharmaceutical administered to the patient an examination information acquisition unit that automatically acquires information from the storage device; The first inspection The number of administrations in Corresponding to This is the standard dose. Diagnostic reference level information and a presentation unit that associates the test administration information with the test administration information and presents information indicating the correspondence; , Function as.

[0019] The invention described in claim 12 is the program described in claim 11, The information indicating the correspondence relationship presented by the presentation unit is a dose of the radiopharmaceutical in the one examination relative to a reference value. .

[0020] The invention described in claim 13 is 11 In the program described in causing the computer to function as a determination unit that determines whether or not the dose of the radiopharmaceutical in the one examination is within a reference value based on the diagnostic reference level information and the examination administration information; The information indicating the correspondence relationship presented by the presentation unit is a result of judging whether or not the dose of the radiopharmaceutical in the one examination is within a reference value. .

[0021] The invention described in claim 14 is 11 In the program described in The test administration information includes at least one of a type of radiopharmaceutical and a test site. .

[0022] The invention described in claim 15 is the program described in claim 11, The test administration information is information from a Radiopharmaceutical Radiation Dose Structured Report (RRDSR).

[0023] The invention described in claim 16 is 11 In the program described in The test administration information is a test name, The number of administrations is included in the test name. .

[0024] The invention described in claim 17 is 16 In the program described in The dose management system includes a radiation information device, causing a computer of the radiation information device to function as the examination information acquisition unit; The examination information acquiring unit acquires the examination name from the storage device.

[0025] The invention described in claim 18 is 16 In the program described in The dose management system includes: A dose management device; a radiation information device including the storage device; Equipped with causing a computer of the dose management device to function as the examination information acquisition unit; The examination information acquiring unit acquires the examination name from the storage device of the radiology information device. Effect of the Invention

[0026] According to the present invention, the radiation dose of a patient in a nuclear medicine examination can be more appropriately managed. [Brief description of the drawings]

[0027] [Figure 1] FIG. 2 is a system configuration diagram of a dose management system. [Diagram 2] FIG. 13 is a diagram showing an example of an examination name in examination order information. [Diagram 3] FIG. 2 is a block diagram showing a functional configuration of the radiation dose management device. [Figure 4] FIG. 13 is a diagram showing an example of information stored in a diagnostic reference level DB. [Diagram 5] 5 is a flowchart showing a dose management process executed in the dose management device of the first embodiment. [Figure 6] FIG. 13 is a diagram showing an example of displaying the reference value of the diagnostic reference level, the total of the actual dose, and the determination result. [Figure 7] 10 is a flowchart showing a dose management process executed in a dose management device of a second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a radiation dose management system according to the present invention will be described. Note that the present invention is not limited to the illustrated examples.

[0029] First Embodiment (1. Configuration of the Dose Control System) FIG. 1 shows an example of the system configuration of a dose management system 100. As shown in FIG. As shown in FIG. 1, the dose management system 100 includes a RIS (Radiology Information System) server 10 as a radiation information device, a nuclear medicine imaging device 20, a dose management device 30, and the like. The devices are connected to each other so as to be able to transmit and receive data via a communication network N such as a LAN (Local Area Network) or a WAN (Wide Area Network). The devices constituting the dose management system 100 conform to the HL7 (Health Level Seven) or DICOM (Digital Image and Communications in Medicine) standards, and communication between the devices is performed in accordance with HL7 or DICOM.

[0030] The RIS server 10 manages information within the radiology department, such as reservations for examinations and treatments using radiation equipment, and examination results. The RIS server 10 includes a storage unit 11, manages examination order information stored in the storage unit 11, and transmits the examination order information to a modality (such as the nuclear medicine imaging apparatus 20) of an examination subject.

[0031] The test order information includes patient information, test information, and the like. The patient information is information about a patient (subject), and includes a patient ID, a patient name, a date of birth, an age, a sex, a height, a weight, and the like. The examination information is information related to an examination, including an examination ID, examination date and time, modality (SPECT device, PET device, etc.), examination part, examination purpose, examination description, examination name, etc.

[0032] Here, the predetermined information regarding the nuclear medicine examination is the name of the examination, information of the examination included in one examination, etc. Note that the predetermined information regarding the nuclear medicine examination may include, but is not limited to, information on the examination site in the nuclear medicine examination, the type of radiopharmaceutical administered to the patient in the examination (e.g., the name of the radiopharmaceutical), and the number of times the radiopharmaceutical is administered in one examination.

[0033] In this embodiment, the predetermined information regarding the nuclear medicine examination is the examination name. FIG. 2 shows an example of an examination name in the examination order information of this embodiment. As shown in FIG. 2, the examination name includes information on the examination site in the nuclear medicine examination, the type of radiopharmaceutical (eg, the name of the radiopharmaceutical) administered to the patient in the examination, and the number of administrations. The examination site may be, for example, bone, myocardium (blood flow), inflammation, tumor, or the like. Examples of names of radiopharmaceuticals include 99mTc-MDP, 99mTc-MIBI, 67Ga, and 201Tl. Regarding the number of administrations, for example, (rest + stress) indicates two administrations, while (stress only) and no mention of rest or stress indicate a single administration.

[0034] The nuclear medicine imaging device 20 is, for example, a SPECT device or a PET device, and generates a radiation image by imaging the radiation emitted outside the patient's body when a radioisotope (RI = radioisotope) is inhaled or injected intravenously into the body.

[0035] The operation of the nuclear medicine imaging apparatus 20 will now be described. First, the nuclear medicine imaging apparatus 20 receives examination order information from the RIS server 10 . Next, the nuclear medicine imaging apparatus 20 receives input from the technician via the operation unit 22, such as the administration time, dosage, and type of radiopharmaceutical (e.g., name of the radiopharmaceutical) of the radiopharmaceutical administered to the patient during the nuclear medicine examination. Next, the nuclear medicine imaging apparatus 20 performs imaging based on the examination order information and generates a radiation image. Next, the nuclear medicine imaging apparatus 20 generates and outputs a Radiopharmaceutical Radiation Dose Structured Report (RRDSR) specialized for managing drug dose information in nuclear medicine, similar to a Radiation Dose Structured Report (RDSR) used for managing radiation dose in CT (Computed Tomography) and general X-ray imaging, based on the generated radiation image and information input by the medical technician. The RRDSR is information conforming to the DICOM standard and is one of the data formats for expressing dose information. Patient information, examination information, etc. are recorded in the RRDSR. Moreover, the nuclear medicine imaging apparatus 20 includes a storage unit 21, in which the generated RRDSR is stored.

[0036] The dose management device 30 receives, for example, examination order information from the RIS server 10, and associates the examination name included in the examination order information with information on the diagnostic reference level corresponding to the examination. Then, the dose management device 30 calculates the total actual dose of the radiopharmaceutical administered to the patient in the nuclear medicine examination based on the RRDSR. Then, the dose management device 30 judges whether the calculated total actual dose is greater than the reference value of the diagnostic reference level, that is, whether the dose is an overdose.

[0037] FIG. 3 shows the functional configuration of the dose management device 30. As shown in FIG. 3, the radiation dose management device 30 includes a control unit 31, a communication unit 32, a storage unit 33, a display unit 34, and the like, and each unit is connected to another unit via a bus.

[0038] The control unit 31 is composed of a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), etc., and comprehensively controls the processing operations of each unit of the radiation dose management device 30. Specifically, the CPU reads out various processing programs stored in the ROM, loads them in the RAM, and performs various processes in cooperation with the programs.

[0039] The communication unit 32 is configured with a network interface or the like, and transmits and receives data to and from external devices (such as the RIS server 10 and the nuclear medicine imaging apparatus 20) connected via the communication network N. For example, the communication unit 32 receives examination order information from the RIS server 10 and receives an RRDSR from the nuclear medicine imaging apparatus 20.

[0040] The storage unit 33 is configured with a HDD (Hard Disk Drive), a non-volatile memory, etc., and stores various data.

[0041] Further, the storage unit 33 stores a diagnostic reference level DB (Data Base) 331. The diagnostic reference level DB 331 is a database that stores diagnostic reference levels (DRLs), which are standard values ​​for general dose management in nuclear medicine for each examination name. Fig. 4 shows an example of information stored in the diagnostic reference level DB 331. As shown in Fig. 4, the reference value of radiation dose management is stored in association with the examination name at the diagnostic reference level. The test name at the diagnostic reference level also includes information on the test site, the type of radiopharmaceutical administered to the patient in the test (eg, the name of the radiopharmaceutical), and the number of doses, similar to the test name in the test order information. The test sites are, for example, bones, myocardial blood flow, tumors / inflammation, tumors, etc. Examples of names of radiopharmaceuticals include 99mTc-MDP, 99mTc-MIBI, 67Ga-citrate, and 201Tl-chloride. Regarding the number of administrations, for example, (rest + stress) indicates two administrations, while (rest or stress only once) and no mention of rest or stress indicate a single administration.

[0042] The display unit 34 is configured with a monitor such as an LCD (Liquid Crystal Display) or a CRT (Cathode Ray Tube), and performs display according to instructions of a display signal input from the control unit 31.

[0043] (2. Operation of the Dose Control System) Next, the operation of the dose management device 30 will be described. 5 is a flowchart showing the dose management process executed in the dose management device 30. This process is realized by software processing through cooperation between the CPU of the control unit 31 and a program stored in the ROM.

[0044] First, the control unit 31 receives the examination order information from the RIS server 10, and acquires the examination name included in the examination order information (step A1). That is, the control unit 31 automatically acquires the examination name related to the nuclear medicine examination (predetermined information related to the nuclear medicine examination) from the memory unit 11 (storage device) of the RIS server 10 (radiation information device). Here, the control unit 31 functions as an examination information acquisition unit. The step A1 is an examination information acquisition process.

[0045] Next, the controller 31 acquires, from the diagnostic reference level DB 331, the reference value of the diagnostic reference level corresponding to the test name acquired in step A1 (step A2). For example, a case will be described in which the control unit 31 acquires "bone scintigraphy (99mTc-MDP)" as the examination name in step A1. In this case, the control unit 31 acquires "950 [MBq]" (see FIG. 4) as the standard value of the diagnostic reference level corresponding to the examination with "Examination site: bone, Radiopharmaceutical name: 99mTc-MDP, Number of administrations: 1 time". Next, a case will be described in which the control unit 31 acquires "myocardial 99mTc-MIBI (rest + stress)" as the examination name in step A1. In this case, the control unit 31 acquires "1200 [MBq]" (see FIG. 4) as the standard value of the diagnostic reference level corresponding to the examination with "Examination site: myocardial blood flow, Radiopharmaceutical name: 99mTc-MIBI, Number of administrations: 2 times".

[0046] Next, the controller 31 associates the test name acquired in step A1 with the reference value of the diagnostic reference level acquired in step A2 (step A3). That is, the control unit 31 automatically associates the test name with the information on the diagnostic reference level corresponding to the test based on the test name. Here, the control unit 31 functions as an associating unit. Step A3 is a correlating step.

[0047] Next, the control unit 31 receives the RRDSR outputted by the nuclear medicine imaging apparatus 20 (step A4).

[0048] Next, the control unit 31 calculates the total amount of actual doses in one examination from the administration time, dose, and type of radiopharmaceutical (e.g., radiopharmaceutical name) of the radiopharmaceutical administered to the patient in one examination based on the RRDSR received in step A4 (step A5). Here, the control unit 31 identifies examinations with the same examination ID as the same examination. Radioactive pharmaceuticals undergo radioactive decay, and therefore their radioactivity decreases over time. The dose management device 30 is connected to a pharmaceutical database (DB) (not shown) that stores data on radioactive pharmaceuticals. The pharmaceutical DB stores data on the half-life of radioactive pharmaceuticals. The half-life is the time it takes for the radioactivity of a radioactive pharmaceutical to be reduced by half. The control unit 31 calculates the actual dose of the radioactive pharmaceutical by determining the amount of radioactivity of the radioactive pharmaceutical at the administration time from the dosage and half-life according to the type of radioactive pharmaceutical based on the calibration time and administration time. Here, the calibration time is a reference time that indicates the amount of radioactivity of the target radioactive pharmaceutical at a given time.

[0049] Next, the controller 31 judges whether the total of the actual doses calculated in step A5 is within the reference value of the diagnostic reference level associated in step A3. If the total of the actual doses is within the reference value, the controller 31 judges the dose to be OK, and if the total of the actual doses exceeds the reference value, the controller 31 judges the dose to be NG (overdosage) (step A6).

[0050] Next, the control unit 31 causes the display unit 34 to display the standard value of the diagnostic reference level associated in step A3, the total actual dose calculated in step A5, and the judgment result in step A6, and also causes the memory unit 33 to store them (step A7), and ends this process.

[0051] FIG. 6 shows an example of displaying the reference value of the diagnostic reference level, the total actual dose, and the judgment result. 6, the controller 31 causes the display unit 34 to display a display screen 341, and displays the total actual dose calculated in step A5 in a field 341a on the display screen 341. The controller 31 then displays the reference value of the diagnostic reference level associated in step A3 in a field 341b. The controller 31 then displays the determination result in step A6 in a field 341c.

[0052] In the dose management system 100 of the present embodiment, the dose management device 30 may be omitted, and the RIS server 10 may function as the dose management device. That is, the RIS server 10 functions as an examination information acquisition unit and an association unit. In this case, in step A1 of the dose management process, the RIS server 10 acquires the examination name included in the examination order information from the examination order information stored in the memory unit 11. That is, the RIS server 10 automatically acquires the examination name related to the nuclear medicine examination (predetermined information related to the nuclear medicine examination) from the memory unit 11 (storage device) of the RIS server 10 (radiation information device).

[0053] The dose management system 100 may also include a hospital information system (HIS) (not shown) connected to the radiation dose management system 100 so as to be capable of transmitting and receiving data via the communication network N. The hospital information system stores examination order information in its own storage unit. In this case, in step A1 of the dose management process, the examination information acquisition unit (control unit 31 or RIS server 10) acquires the examination name included in the examination order information received from the hospital information system. That is, the examination information acquisition unit automatically acquires the examination name related to the nuclear medicine examination (predetermined information related to the nuclear medicine examination) from the memory unit (memory device) of the hospital information system.

[0054] Furthermore, an external device outside the dose management system 100 configured to be able to communicate with the dose management apparatus 30 may include a storage device, and the examination order information may be stored in the storage device. In this case, in step A1 of the dose management process, the examination information acquisition unit (control unit 31) acquires the examination name included in the examination order information received from the external device. That is, the examination information acquisition unit automatically acquires the examination name related to the nuclear medicine examination (predetermined information related to the nuclear medicine examination) from the storage device of the external device.

[0055] (3. Effects) As described above, the dose management system 100 of this embodiment includes an examination information acquisition unit (control unit 31 or RIS server 10) that automatically acquires specific information related to nuclear medicine examinations from a storage device, and an association unit (control unit 31 or RIS server 10) that automatically associates the specific information related to the nuclear medicine examination with information (standard values) of the diagnostic reference level corresponding to the examination. The diagnostic reference level is a standard value for general dose management in nuclear medicine. The examination name in the diagnostic reference level includes information on the examination site, the type of radiopharmaceutical administered to the patient in the examination (e.g., the name of the radiopharmaceutical), and the number of doses. Therefore, even when a radiopharmaceutical is administered twice in one nuclear medicine examination, an appropriate diagnostic reference level corresponding to the nuclear medicine examination can be associated with the radiopharmaceutical, thereby making it possible to more appropriately manage the radiation exposure dose of patients in nuclear medicine examinations. Furthermore, when specific information related to nuclear medicine examinations is manually input to a dose management device, there is a possibility of input errors occurring because the specific information related to nuclear medicine examinations (e.g., examination names) to be input is similar. However, the examination information acquisition unit in the dose management system 100 of this embodiment automatically acquires the specific information related to nuclear medicine examinations, and therefore such input errors can be prevented.

[0056] In the dose management system 100 of this embodiment, the predetermined information related to the nuclear medicine examination is the examination name, and the associating unit associates the examination name with the information on the diagnostic reference level based on the examination name. Therefore, by receiving examination order information including the examination name from the RIS server 10 or the like, it is possible to easily obtain predetermined information related to the nuclear medicine examination.

[0057] In addition, the dose management system 100 of this embodiment is equipped with a radiation information device (RIS server 10), which is equipped with an examination information acquisition unit, and the examination information acquisition unit acquires the examination name from a storage device (memory unit 11 or a memory unit of a hospital information system, etc.). Therefore, even if the dose management system 100 does not include the dose management device 30, it is possible to more appropriately manage the radiation dose of a patient in a nuclear medicine examination.

[0058] In addition, the dose management system 100 of this embodiment includes a dose management device 30 and a radiation information device (RIS server 10) equipped with a memory device (memory unit 11), and the dose management device 30 includes an examination information acquisition unit (control unit 31), which acquires the examination name from the memory device (memory unit 11) of the radiation information device. Therefore, by receiving examination order information including the examination name from the storage unit 11 of the RIS server 10, it is possible to easily obtain predetermined information related to the nuclear medicine examination.

[0059] <Second embodiment> Next, a dose management system 100 according to a second embodiment will be described. The following mainly describes the differences from the first embodiment.

[0060] In this embodiment, the predetermined information related to a nuclear medicine examination is information on an examination included in one examination. The examination information includes the examination site in the nuclear medicine examination, the type of radiopharmaceutical (radiopharmaceutical name) administered to the patient, and the like. The information on the examination is included in the RRDSR output from the nuclear medicine imaging apparatus 20.

[0061] The dose management device 30 of this embodiment receives the RRDSR from the nuclear medicine imaging device 20, and associates the information of the RRDSR with information of the diagnostic reference level corresponding to the examination. Then, the dose management device 30 calculates the total actual dose of the radiopharmaceutical administered to the patient in the nuclear medicine examination based on the RRDSR. Then, the dose management device 30 judges whether or not the calculated total actual dose is greater than the reference value of the diagnostic reference level, that is, whether or not an overdose has occurred.

[0062] (4. Operation of the Dose Control System) 7 shows a flowchart of the dose management process in the dose management system 100 of this embodiment. This process is realized by software processing through cooperation between the CPU of the control unit 31 and a program stored in the ROM.

[0063] First, the control unit 31 receives the RRDSR output by the nuclear medicine imaging apparatus 20, and acquires information on the examination included in one examination in the RRDSR (step B1). That is, the control unit 31 automatically acquires information on the examination included in one examination in the RRDSR related to the nuclear medicine examination (predetermined information on the nuclear medicine examination) from the memory unit 21 (storage device) of the nuclear medicine imaging apparatus 20. Here, the control unit 31 functions as an examination information acquisition unit. Step B1 is an examination information acquisition step. The control unit 31 identifies examinations assigned the same examination ID as the same examination.

[0064] Next, the control unit 31 determines the number of times the same radiopharmaceutical is administered in the same examination based on the examination information included in the examination acquired in step B1 (step B2). Specifically, the control unit 31 judges whether or not the information on the first radiopharmaceutical and the information on the second radiopharmaceutical in the information on the examination included in one examination are identical. Here, the control unit 31 functions as a judgment unit. For example, when the control unit 31 acquires "Radiopharmaceutical name: 99mTc-MDP (information of the first radiopharmaceutical)" and "Radiopharmaceutical name: 99mTc-MDP (information of the second radiopharmaceutical)" as information of an examination included in one examination in step B1, it determines that the information of the first radiopharmaceutical and the information of the second radiopharmaceutical are the same. In this case, the control unit 31 determines that the first radiopharmaceutical was administered twice (multiple times) in one examination. On the other hand, when the control unit 31 acquires "Radiopharmaceutical name: 67Ga-citrate (information of the first radiopharmaceutical)" and "Radiopharmaceutical name: 201Tl-chloride (information of the second radiopharmaceutical)" as information of the examination included in one examination in step B1, it determines that the information of the first radiopharmaceutical and the information of the second radiopharmaceutical are not identical. In this case, the control unit 31 determines that the first radiopharmaceutical and the second radiopharmaceutical were each administered once in one examination.

[0065] Next, the controller 31 acquires, from the diagnostic reference level DB 331, the reference value of the diagnostic reference level corresponding to the examination information included in the one examination acquired in step B1 (step B3). For example, a case will be described in which the control unit 31 acquires "examination site: myocardial blood flow, radiopharmaceutical name: 99mTc-MIBI (information of the first radiopharmaceutical)" and "examination site: myocardial blood flow, radiopharmaceutical name: 99mTc-MIBI (information of the second radiopharmaceutical)" as information of an examination included in one examination in step B1. In this case, the control unit 31 determines in step B2 that the first radiopharmaceutical has been administered twice in one examination. Then, in step B3, the control unit 31 acquires "1200 [MBq]" (see FIG. 4) as the standard value of the diagnostic reference level corresponding to the examination with "examination site: myocardial blood flow, radiopharmaceutical name: 99mTc-MIBI, number of administrations: twice". On the other hand, a case will be described in which the control unit 31 acquires "Examination site: tumor / inflammation, radiopharmaceutical name: 67Ga-citrate (information of the first radiopharmaceutical)" and "Examination site: tumor, radiopharmaceutical name: 201Tl-chloride (information of the second radiopharmaceutical)" as information of an examination included in one examination in step B1. In this case, the control unit 31 determines in step B2 that the first radiopharmaceutical and the second radiopharmaceutical have each been administered once in one examination. Then, in step B3, the control unit 31 acquires "120[MBq]" (see FIG. 4) as the reference value of the diagnostic reference level corresponding to the examination with "Examination site: tumor / inflammation, radiopharmaceutical name: 67Ga-citrate, number of administrations: once". Also, the control unit 31 acquires "120[MBq]" (see FIG. 4) as the reference value of the diagnostic reference level corresponding to the examination with "Examination site: tumor, radiopharmaceutical name: 201Tl-chloride, number of administrations: once".

[0066] Next, the controller 31 associates the information of the examination included in one examination acquired in step B1 with the reference value of the diagnostic reference level acquired in step B3 (step B4). That is, the control unit 31 associates the information of the test included in one test with the reference value of the diagnostic reference level (information of the diagnostic reference level) based on the judgment result by the judgment unit. Here, the control unit 31 functions as an association unit. Step B4 is the association step. In addition, when the judgment unit judges that the first radiopharmaceutical has been administered multiple times, the control unit 31 matches the information of the examination included in one examination with the information of the diagnostic reference level based on the judgment result by the judgment unit that the first radiopharmaceutical has been administered multiple times.

[0067] Next, the control unit 31 performs steps B5 to B7 similar to steps A5 to A7 of the dose management process of the first embodiment, and ends this process.

[0068] (5. Effects) As described above, in the dose management system 100 of this embodiment, the specified information related to a nuclear medicine examination is information of an examination included in one examination, and the system is provided with a judgment unit (control unit 31) that judges whether or not information of a first radiopharmaceutical and information of a second radiopharmaceutical included in one examination are identical, and the association unit (control unit 31) associates the information of the examination included in one examination with information of the diagnostic reference level based on a judgment result by the judgment unit. Therefore, even when a radiopharmaceutical is administered twice in one nuclear medicine examination, an appropriate diagnostic reference level corresponding to the nuclear medicine examination can be associated with the radiopharmaceutical, thereby making it possible to more appropriately manage the radiation exposure dose of patients in nuclear medicine examinations.

[0069] Furthermore, in the dose management system 100 of this embodiment, when the determination unit determines that the information on the first radiopharmaceutical and the information on the second radiopharmaceutical are identical, it determines that the first radiopharmaceutical has been administered multiple times, and the matching unit matches the information on the examination included in one examination with the information on the diagnostic reference level based on the determination result by the determination unit that the first radiopharmaceutical has been administered multiple times. Therefore, even when a radiopharmaceutical is administered multiple times in one nuclear medicine examination, an appropriate diagnostic reference level corresponding to the nuclear medicine examination can be associated with the radiopharmaceutical, thereby making it possible to more appropriately manage the radiation exposure dose of a patient in the nuclear medicine examination.

[0070] In addition, the dose management system 100 of this embodiment includes a dose management device 30 and a nuclear medicine imaging device 20 equipped with a memory device (memory unit 21), and the dose management device 30 includes an examination information acquisition unit (control unit 31), which acquires specified information related to nuclear medicine examinations from the memory device (memory unit 21) of the nuclear medicine imaging device 20. Therefore, by receiving the RRDSR from the nuclear medicine imaging apparatus 20, predetermined information related to the nuclear medicine examination can be easily acquired.

[0071] In the dose management system 100 of this embodiment, the predetermined information related to the nuclear medicine examination is information of a Radiopharmaceutical Radiation Dose Structured Report (RRDSR). Therefore, when obtaining predetermined information related to a nuclear medicine examination from the storage unit 21 of the nuclear medicine imaging device 20, communication in accordance with the RRDSR standard is possible. Therefore, when obtaining the predetermined information, it is not necessary to check whether information can actually be communicated between the device transmitting the predetermined information and the dose management device 30. In addition, the cost for checking whether communication is possible is not required. In addition, it is possible to save the time and effort of manually inputting predetermined information related to a nuclear medicine examination into the dose management device 30.

[0072] The above description of the embodiment is merely a preferred example of the dose management system according to the present invention, and the present invention is not limited to this.

[0073] For example, in the above embodiments, a case where a radiopharmaceutical is administered twice in one nuclear medicine examination and a case where a radiopharmaceutical is administered only once in one nuclear medicine examination are described, but the number of administrations in one nuclear medicine examination is not limited to this.

[0074] Also, for example, in the above embodiment, an example is disclosed in which a semiconductor memory or a HDD is used as a computer-readable medium storing a program for executing each process, but the present invention is not limited to this example. As another computer-readable medium, a portable recording medium such as a CD-ROM can also be applied. Also, a carrier wave can be applied as a medium for providing program data via a communication line.

[0075] In addition, the detailed configurations and operations of the components constituting the dose management system may be modified as appropriate without departing from the spirit and scope of the present invention. [Explanation of symbols]

[0076] 10 RIS server (radiology information device) 11 Storage section 20 Nuclear medicine imaging equipment 21 Memory section 22 Control section 30 Dose control device 31 Control unit (test information acquisition unit, matching unit, judgment unit) 32 Communications Department 33 Storage section 331 Diagnostic Reference Level DB 34 Display section 100 Dose Management System N Communication Network

Claims

1. an examination information acquisition unit that automatically acquires examination administration information including the number of doses of a radiopharmaceutical administered to a patient in a nuclear medicine examination from a storage device; a presentation unit that associates information on a diagnostic reference level, which is a reference value of a dose corresponding to the number of doses in the one test, with the test administration information and presents information showing the correspondence; A dose management system comprising:

2. A dose management system as described in claim 1, wherein the information indicating the correspondence presented by the presentation unit is the dosage in the one test relative to the reference value.

3. A determination unit that determines whether or not the dosage of the radiopharmaceutical in the one test is within a reference value based on the diagnostic reference level information and the test administration information, The radiation dose management system according to claim 1 , wherein the information indicating the correspondence relationship presented by the presentation unit is a result of determining whether or not an administered amount of a radiopharmaceutical in one examination is within a reference value.

4. The dose management system of claim 1, wherein the test administration information includes at least one of the type of radioactive drug and the test site.

5. The radiation dose management system according to claim 1 , wherein the examination and administration information is information of a Radiopharmaceutical Radiation Dose Structured Report (RRDSR).

6. The test administration information is a test name, The radiation dose management system according to claim 1 , wherein the number of administrations is included in the test name.

7. A radiation information device is provided. The radiation information device includes the examination information acquisition unit, The radiation dose management system according to claim 6 , wherein the examination information acquisition unit acquires the examination name from the storage device.

8. A dose management device; a radiation information device including the storage device; Equipped with The radiation dose management device includes the examination information acquisition unit, The radiation dose management system according to claim 6 , wherein the examination information acquisition unit acquires the examination name from the storage device of the radiation information device.

9. an examination information acquisition unit that automatically acquires examination administration information including the number of doses of a radiopharmaceutical administered to a patient in a nuclear medicine examination from a storage device; a presentation unit that associates information on a diagnostic reference level, which is a reference value of a dose corresponding to the number of doses in the one test, with the test administration information and presents information showing the correspondence; A dose management device comprising:

10. an examination information acquisition step of automatically acquiring examination administration information including the number of doses of a radiopharmaceutical administered to a patient in a nuclear medicine examination from a storage device; a presentation step of associating information on a diagnostic reference level, which is a reference value of a dose corresponding to the number of administrations in the one test, with the test administration information, and presenting information showing the correspondence; A dose management method having the following features:

11. The computer in the dose management system is an examination information acquisition unit that automatically acquires examination administration information including the number of doses of a radiopharmaceutical administered to a patient in a nuclear medicine examination from a storage device; a presentation unit that associates information on a diagnostic reference level, which is a reference value of a dosage corresponding to the number of administrations in the one test, with the test administration information, and presents information showing the correspondence; A program that functions as a

12. The program described in Claim 11, wherein the information indicating the correspondence presented by the presentation unit is the dosage in the one test relative to the reference value.

13. The computer is caused to function as a determination unit that determines whether or not the dosage of the radiopharmaceutical in the one examination is within a reference value based on the information on the diagnostic reference level and the examination administration information, The program according to claim 11 , wherein the information indicating the correspondence relationship presented by the presentation unit is a result of determining whether or not the dose of the radiopharmaceutical in the one examination is within a reference value.

14. The program described in claim 11, wherein the test administration information includes at least one of the type of radioactive drug and the test site.

15. The program according to claim 11 , wherein the test administration information is information of a Radiopharmaceutical Radiation Dose Structured Report (RRDSR).

16. The test administration information is a test name, The program according to claim 11 , wherein the number of administrations is included in the test name.

17. The dose management system includes a radiation information device, causing a computer of the radiation information device to function as the examination information acquisition unit; The program according to claim 16 , wherein the examination information acquisition unit acquires the examination name from the storage device.

18. The dose management system includes: A dose management device; a radiation information device including the storage device; Equipped with causing a computer of the dose management device to function as the examination information acquisition unit; The program according to claim 16 , wherein the examination information acquisition unit acquires the examination name from the storage device of the radiology information device.

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