CN111352147B - Radiation monitoring method - Google Patents
Radiation monitoring method Download PDFInfo
- Publication number
- CN111352147B CN111352147B CN202010296778.7A CN202010296778A CN111352147B CN 111352147 B CN111352147 B CN 111352147B CN 202010296778 A CN202010296778 A CN 202010296778A CN 111352147 B CN111352147 B CN 111352147B
- Authority
- CN
- China
- Prior art keywords
- patient
- radiation monitoring
- radiation
- data
- monitoring method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005855 radiation Effects 0.000 title claims abstract description 104
- 238000012544 monitoring process Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 34
- 238000012806 monitoring device Methods 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 8
- 230000000977 initiatory effect Effects 0.000 claims abstract description 8
- 238000012545 processing Methods 0.000 claims description 37
- 238000004891 communication Methods 0.000 claims description 15
- 230000001133 acceleration Effects 0.000 claims description 12
- PNDPGZBMCMUPRI-HVTJNCQCSA-N 10043-66-0 Chemical compound [131I][131I] PNDPGZBMCMUPRI-HVTJNCQCSA-N 0.000 claims description 10
- 210000001685 thyroid gland Anatomy 0.000 claims description 7
- 210000000707 wrist Anatomy 0.000 claims description 6
- 230000008859 change Effects 0.000 abstract description 4
- 238000001959 radiotherapy Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 17
- 238000005259 measurement Methods 0.000 description 10
- 230000033001 locomotion Effects 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000002159 abnormal effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 4
- 238000009206 nuclear medicine Methods 0.000 description 4
- 206010028980 Neoplasm Diseases 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 208000015799 differentiated thyroid carcinoma Diseases 0.000 description 3
- 238000001727 in vivo Methods 0.000 description 3
- 230000000474 nursing effect Effects 0.000 description 3
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- 206010010071 Coma Diseases 0.000 description 2
- 206010027476 Metastases Diseases 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 201000011510 cancer Diseases 0.000 description 2
- 229910052740 iodine Inorganic materials 0.000 description 2
- 239000011630 iodine Substances 0.000 description 2
- 230000009401 metastasis Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001225 therapeutic effect Effects 0.000 description 2
- 208000032484 Accidental exposure to product Diseases 0.000 description 1
- 206010073306 Exposure to radiation Diseases 0.000 description 1
- 208000007660 Residual Neoplasm Diseases 0.000 description 1
- 231100000818 accidental exposure Toxicity 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 210000004247 hand Anatomy 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- 230000002147 killing effect Effects 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005025 nuclear technology Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/20—Measuring radiation intensity with scintillation detectors
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/0205—Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/024—Detecting, measuring or recording pulse rate or heart rate
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1116—Determining posture transitions
- A61B5/1117—Fall detection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1118—Determining activity level
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
- A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
- A61B5/1123—Discriminating type of movement, e.g. walking or running
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/16—Measuring radiation intensity
- G01T1/161—Applications in the field of nuclear medicine, e.g. in vivo counting
Abstract
The invention provides a radiation monitoring method, which comprises the following steps of S1: recording the initial activity A of nuclide taken by patient 0 The method comprises the steps of carrying out a first treatment on the surface of the Step S2: after the patient takes nuclides for 30 minutes, standing the patient and keeping the arm naturally drooping, and measuring a group of radiation dose equivalent rate DoseRate_0 by adopting a radiation monitoring device; step S3: substituting the initial activity and the equivalent rate of the radiation dose into the formula P 0 ＝DoseRate_0/A 0 To calculate the conversion coefficient P 0 The method comprises the steps of carrying out a first treatment on the surface of the Step S4: the dose equivalent rate dosearate of the patient at any instant is measured by the radiation monitoring device and is calculated by the formula a=dosearate/P 0 The remaining activity a of the patient is calculated. The invention can continuously measure the activity change condition in the patient and provide assistance for radiotherapy.
Description
The application is filed with application number 201811570031.5, application date 2018.12.21 and the name of the invention as a radiation monitoring device.
Technical Field
The invention relates to the field of nuclear medicine, in particular to a radiation monitoring method.
Background
Along with the application and popularization of nuclear technology in the medical field, a nuclide treatment ward is arranged in more and more large tertiary hospitals, and the treatment of various diseases by utilizing radionuclides is carried out, wherein the most typical treatment is that an iodine-131 nuclide is used for treating patients after differentiated thyroid cancer operation, as the differentiated thyroid cancer tissues can specifically absorb iodine like normal thyroid tissues, after the differentiated thyroid cancer patients take a large dose of iodine-131 orally, the iodine-131 is absorbed by thyroid tissues, residual cancer tissues and metastasis, beta rays emitted in the decay process of the iodine-131 produce a killing effect on cancer cells, so that the cancer tissues are necrotized, and the recurrence and metastasis probability after tumor operation are reduced. Since iodine-131 releases beta rays and gamma rays, patients receiving this treatment are often scheduled for hospitalization for isolation treatment, avoiding accidental exposure to surrounding environment and personnel. Discharge may be arranged only if the activity of iodine-131 in the patient (used to describe the amount of nuclide, which refers to the number of atoms the sample decays in a unit of time, also called decay rate, is below 400MBq or if the equivalent dose rate of radiation (inversely proportional to the square of the source distance, proportional to the activity of the source) is below 20 mu Sv/h at a distance of 1m from the patient.
At present, there are two common ways for the nuclear medicine department to manage and control patients: first, uniform hospital stays are used for management, such as scheduling discharge after a week of current general hospital stay; second, using a stationary ambient radiation monitor, the equivalent dose rate of radiation at 1m from the patient is measured periodically, and the patient is scheduled for discharge when the equivalent dose rate of radiation is below 20 μsv/h.
For the first mode, due to the metabolic difference of patients, a plurality of patients can reach discharge standard within 2-3 days, but hospitalization is still required to be arranged, so that the utilization rate of the sickbed is not improved; some patients are metabolized slowly, and when discharged from hospital, the activity level of nuclides in the body is still high, and accidental irradiation can be performed on surrounding people.
In the second approach, each individual needs to be individually scheduled for measurement due to the large number of patients, and most often monitored once a day, and discharge management is not efficient. The use of stationary environmental radiation monitors also does not allow continuous measurement of activity data of nuclides within a patient. Since the activity of iodine-131 in the patient is one of the indexes for evaluating the therapeutic effect, a continuous change curve of the activity in the patient cannot be obtained, which is not beneficial to the therapeutic diagnosis.
In addition, the isolation ward in which the patient is located cannot be the same as an ordinary ward, and medical staff cannot visit the bedside to visit the ward at any time, so that certain potential safety hazards exist for older and heavier patients, especially for patients who live an isolation ward alone. For accompanying, nurses usually regularly patrol through a video patrol system to check whether the patient has abnormal conditions or not, and emergency events cannot be found in time often.
Disclosure of Invention
It is an object of the present invention to provide a radiation monitoring method, solving at least one of the above problems.
In order to solve the technical problem, the technical scheme of the invention is to provide a radiation monitoring method, which comprises the following steps:
step S1: recording the initial activity A of nuclide taken by patient 0 ；
Step S2: after the patient takes the nuclide for 30 minutes, standing the patient and keeping the arm naturally drooping, and measuring a group of radiation dose equivalent rate DoseRate_0 by using a radiation monitoring device;
step S3: substituting the initial activity and the radiation dose equivalent rate into formula P 0 ＝DoseRate_0/A 0 To calculate the conversion coefficient P 0 ；
Step S4: measuring the dose equivalent rate dosearate of the patient at any time by the radiation monitoring device and calculating the dose equivalent rate dosearate/P by the formula a=dosearate/P 0 The remaining activity a of the patient is calculated.
In accordance with one embodiment of the present invention, in the step S1, the species employs iodine 131.
According to one embodiment of the invention, in said step S2, said radiation monitoring device is worn at the wrist of said patient.
According to one embodiment of the invention, in said step S2, heart rate data of said patient is monitored using a heart rate monitoring module, and said radiation dose equivalent rate is measured using said radiation monitoring device when said heart rate data is normal.
According to one embodiment of the invention, in said step S2, acceleration data of said patient is detected using an inertial detection module, and said radiation dose equivalent rate is measured using said radiation monitoring device when said acceleration data is normal.
According to one embodiment of the present invention, in the step S2, heart rate data of the patient is monitored by a heart rate monitoring module, acceleration data of the patient is detected by an inertia detecting module, and the radiation dose equivalent rate is measured by the radiation monitoring device when both the heart rate data and the acceleration data are normal.
According to one embodiment of the invention, in said step S3, said conversion coefficient is calculated by a processing module.
According to one embodiment of the invention, the radiation monitoring method further comprises: step S5: and drawing a curve of the activity corresponding to the patient along with the time according to the residual activity data.
According to one embodiment of the invention, the radiation monitoring method further comprises: step S6: and setting a threshold value of the residual activity, and sending out a discharge prompt when the residual activity is lower than the threshold value.
According to one embodiment of the invention, the radiation monitoring method further comprises: step S7: the radiation monitoring devices are respectively worn on a plurality of patients, and are respectively connected with the same management computer in a communication way.
The radiation monitoring method provided by the invention can realize continuous measurement and acquire continuous change data of the activity of the nuclide in the body, so that on one hand, the patient can accurately know which time meets the discharge standard, the utilization rate of a ward is improved, and the occurrence of a discharge event which does not reach the standard is prevented; according to the invention, through the information of radiation equivalent dose rate data, arm length and the like, accurate data of in-vivo activity is obtained, and the comparison with the standard is convenient; the invention can automatically and wirelessly upload the whole course data when in use, and can automatically manage the internal activities of a plurality of patients at the same time, thereby reducing the workload of medical staff and the risk of exposing to radiation environment. In addition, the inertia detection module can identify the actions of the patient, only measures the data under the condition that the standing arm naturally sags, avoids measurement deviation caused by movement of a wearer, does not need medical staff to monitor measurement work, and can effectively identify falling events of the patient and emergency abnormal events related to heart rate, so that nursing effectiveness of the medical staff is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is an exploded schematic view of a radiation monitoring apparatus according to a preferred embodiment of the present invention;
FIG. 2 is an exploded schematic view of another angle of the radiation monitoring apparatus according to FIG. 1;
FIG. 3 is a schematic front view of the radiation monitoring apparatus according to FIG. 1;
FIG. 4 is a schematic diagram of a modular connection of the radiation monitoring apparatus according to FIG. 1;
FIG. 5 is a schematic illustration of an application of a radiation monitoring apparatus according to one embodiment of the invention;
FIG. 6 is a flow chart illustrating the use of a radiation monitoring method according to one embodiment of the invention;
fig. 7 is a schematic diagram of another application of a radiation monitoring apparatus according to an embodiment of the invention.
Detailed Description
The invention will be further illustrated with reference to specific examples. It should be understood that the following examples are illustrative of the present invention and are not intended to limit the scope of the present invention.
It is noted that when a component/feature is referred to as being "disposed on" another component/feature, it can be disposed directly on the other component/feature or intervening components/features may also be present. When a component/feature is referred to as being "connected/coupled" to another component/feature, it may be directly connected/coupled to the other component/feature or intervening components/features may also be present. The term "connected/coupled" as used herein may include electrical and/or mechanical physical connections/couplings. The term "comprises/comprising" when used herein means the presence of a feature, step or component/part, but does not exclude the presence or addition of one or more other features, steps or components/parts. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.
In addition, in the description of the present application, the terms "first," "second," and the like are used merely for descriptive purposes and to distinguish between similar objects, and there is no order of precedence between the two, nor should it be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
Fig. 1 is an exploded schematic view of a radiation monitoring apparatus according to a preferred embodiment of the present invention, as can be seen from fig. 1, the radiation monitoring apparatus provided by the present invention includes a screen 10, a rear cover 20, a housing 30, an annular band 40, a scintillator detector 50, a PCB board 60, a power supply 70 and a processing module 80, wherein the screen 10 and the rear cover 20 are circular, the housing 30 is annular, the screen 10, the rear cover 20 and the housing 30 form a substantially cylindrical space, the annular band 40 is symmetrically disposed outside the housing 30, the scintillator detector 50 and the processing module 80 are disposed on the PCB board 60, the scintillator detector 50 is connected with the processing module 80 and transmits detected radiation detection signals to the processing module 80, the power supply 70 is electrically connected with the PCB board 60 to supply power to the scintillator detector 50 and the processing module 80, the processing module 80 is simultaneously connected with the screen 10 in a communication mode, and the power supply 70 and the PCB board 60 are simultaneously accommodated in the cylindrical space formed by the screen 10, the rear cover 20 and the housing 30, and the processing module 80 can adopt an MCU (Microcontroller Unit, micro control unit) module.
Further, the radiation monitoring device provided by the invention can further comprise an inertia detection module 1, wherein the inertia detection module 1 is arranged on the PCB board 60, and the inertia detection module 1 is in communication connection with the processing module 80 and transmits the detected motion data to the processing module 80. Preferably, the inertial detection module 1 adopts a gyroscope, when the wearer makes different actions, such as moving, swinging, squatting, the inertial detection module 1 can send different acceleration data to the processing module 80 according to the collected different acceleration data, and the processing module 80 compares the different acceleration data with preset data to determine what action state the wearer is in.
Further, the radiation monitoring method provided by the invention can further comprise a heart rate monitoring module 2, wherein the heart rate monitoring module 2 is in communication connection with the processing module 80 and sends the detected heart rate data to the processing module 80. Preferably, a first plate hole 61 is arranged in the middle of the PCB board 60, a second plate hole 21 is arranged in the middle of the rear cover 20, the heart rate monitoring module 2 is accommodated in the first plate hole 61 and the second plate hole 21, when the wearer wears the radiation monitoring method, a part of the surface of the heart rate monitoring module 2 contacts with the surface of the wearer, the heart rate monitoring module 2 can acquire heart rate data and send the heart rate data to the processing module 80, the processing module 80 compares different heart rate data with preset data and synthesizes acceleration data of the inertia detection module 1, whether the wearer is in a sudden emergency state, such as a fall, a bump or even a coma which does not move for a long time, and when such an event is detected, the processing module 80 can send an abnormal alarm to the management computer to inform the medical staff of nursing the patient.
Further, a microphone 3 may be disposed on the PCB board 60, and the microphone 3 is communicatively connected to the processing module 80 and transmits the detected voice data to the processing module 80. Preferably, the side of the housing 30 is provided with a third plate hole 31, and the position of the third plate hole 31 corresponds to the position of the microphone 3 so that the microphone 3 receives clear voice data, and when the wearer is in a sudden emergency state, the microphone 3 can call back in real time to provide the required information to the medical staff at the first time.
Further, the PCB board 60 may further be provided with a wireless communication module 4, and the wireless communication module 4 may be communicatively connected with the processing module 80 and send various data information collected and generated by the processing module 80 to the management computer. It should be noted by those skilled in the art that the wireless communication module 4 may be integrated with the processing module 80 to achieve the same function, which is not described herein.
Fig. 2 is an exploded view of the radiation monitoring apparatus according to fig. 1 at another angle, and fig. 3 is a front view of the radiation monitoring apparatus according to fig. 1. As can be seen from fig. 2 and 3, the radiation monitoring apparatus of the present invention may further include a switch 32, the switch 32 being disposed at a side of the housing 30 and connected to a power source 70 to facilitate control of the operation state of the apparatus.
Fig. 4 is a schematic diagram of a module connection of the radiation monitoring apparatus according to fig. 1, as can be seen from fig. 4, the scintillator detector 50 is communicatively connected to the processing module 80 and sends a detected radiation detection signal to the processing module 80, the scintillator detector 50 includes a scintillation crystal and a photoelectric conversion device coupled to the scintillation crystal, the scintillation crystal can convert received high-energy rays (such as β rays and γ rays) into visible light photons, the photoelectric conversion device is used for converting the visible light photons into an electrical signal, the processing module 80 samples according to the electrical signal and calculates a radiation equivalent dose rate of the radiation detection signal, and the radiation equivalent dose rate is further displayed through the screen 10 and sent to the management computer through the wireless communication module 4 for data monitoring, statistics and analysis. The inertial detection module 1 is in communication connection with the processing module 80 and transmits the detected motion data to the processing module 80, and the processing module performs calculation and comparison according to the collected acceleration data to judge what action state the wearer is in. The heart rate monitoring module 2 is in communication connection with the processing module 80 and sends detected heart rate data to the processing module 80, the processing module 80 performs calculation and analysis according to the heart rate data and synthesizes acceleration data of the inertia detection module 1 to judge whether the wearer is in a sudden emergency state. The microphone 3 is in communication with the processing module 80 and transmits the detected voice data to the processing module 80, the processing module 80 making different action instructions based on the voice data. The wireless communication module 4 may also send instructions from the management computer to the processing module 80 to send the required measurement data as required, or display instruction information made by medical staff on the screen 10, and the wireless communication module 4 may use bluetooth, WIFI, zigbee, loRA, etc.
Fig. 5 is a schematic diagram illustrating an application of the radiation monitoring apparatus according to an embodiment of the present invention, and as can be seen from fig. 5, the radiation monitoring apparatus provided by the present invention can be made into a wristwatch size and worn on a wrist of a patient according to need. At this time, since the value of the radiation equivalent dose rate is inversely proportional to the square of the distance of the source, and directly proportional to the activity of the source, the following formula (1) shows:
where dosearate is the radiation equivalent dose rate, a is the activity of the source, R is the distance between the radiation monitoring device and the source, and K is a constant. Since thyroid is a main organ for human body to absorb iodine, almost all iodine uptake is concentrated at the thyroid, namely the neck position, so when the radiation monitoring device is worn on the wrist, when the hands hang down and stand, as shown in fig. 5, the distance between the radiation monitoring device and the thyroid can be considered as the arm length, and further the data of activity can be calculated through the radiation dose equivalent rate and the arm length measured by the radiation monitoring device.
However, since thyroid is not an ideal point source due to individual differences such as shape and body form, geometric correction is required, and if the geometric correction coefficient is C
To find the geometric correction coefficients, the procedure shown in fig. 6 may be followed:
first, the initial activity A of a nuclide (such as iodine-131) administered by a patient is recorded 0 The initial activity is a known value;
secondly, wearing a radiation monitoring device for a patient, after the patient takes nuclides, allowing the standing arm of the patient to naturally hang down after the nuclides are absorbed for 30min, and measuring a group of radiation dose equivalent rate data DoseRate_0 by using a radiation monitoring method;
third, doseRate_0 and A 0 Substituting the obtained product into a formula (2) to calculate a dose equivalent rate conversion coefficient P 0 ＝CK/R 2 ＝DoseRate_0/A 0 For a given patient, since C, K, R is a constant value, the activity at any time can be calculated by the following formula:
A＝DoseRate/P 0 (3)
fourth step, recording parameter P 0 And the radiation dose rate DoseRate at any moment can be measured by the radiation monitoring device when the standing arm of the patient naturally hangs down, and the in-vivo residual activity A is calculated by the formula (3).
When the radiation monitoring device provided by the invention comprises an inertia detection module, the application steps of the radiation monitoring device further comprise:
and fifthly, the inertia detection module monitors the motion state of the patient at any time, when the condition that the hand arm naturally sags and does not move greatly is monitored, namely, the angle of the gyroscope is vertical to the ground, the accelerometer result is close to 0, the scintillator detector is automatically started, a group of radiation dose equivalent rate data is measured, the corresponding time is recorded, and meanwhile, the data is transmitted to the management computer through the wireless transmission module.
In addition, because of the radiation specificity of the nuclear medicine patient, the patient and the medical staff generally adopt an isolation management mode, and the medical staff sometimes cannot know the state of the patient in real time. The inertia detection module can monitor special movement events of the patient, such as falling, colliding, even coma without moving for a long time, and when such events are monitored, an abnormal alarm can be sent to the management computer to inform medical staff to care the patient.
When the radiation monitoring device provided by the invention is used, the radiation monitoring device can further comprise the following steps:
sixth, the management computer draws a curve of the activity of the patient along with time, a medical staff can set an discharge activity threshold at the management computer, for example, the activity is 400Mbq with reference to national standard GB18871-2006, and once the activity of the patient is lower than the set threshold, the medical staff is automatically prompted at the management computer to discharge the patient;
seventh, medical staff can send instructions through the management computer to inform the patient that the patient can discharge, and at the moment, the screen of the radiation monitoring device on the patient can prompt the information that the patient can discharge;
eighth, if the patient measurement result shows that the discharge standard is met, the computer message can be managed through the microphone direction, so that the medical staff can process the message;
fig. 7 is a schematic diagram of another application of the radiation monitoring apparatus according to an embodiment of the present invention, where a plurality of radiation monitoring apparatuses 1 to n may be communicatively connected to one or more distributed data routes, and these data routes may be connected to a management computer, and each radiation monitoring apparatus may send activity data, movement status data, heart rate data, etc. of a corresponding patient to the management computer through the data routes according to the above operation, so that the management computer may implement simultaneous management of a batch of patients, and greatly improve the operation efficiency of the nuclear medicine department.
The radiation monitoring device integrates the scintillator detector, the power supply and the processing module in the box-shaped space with small volume, is convenient for patients to carry about and automatically measure radiation information in the patients, and improves the monitoring efficiency. It should be noted that, in the above embodiment, the ring belt is adopted to be matched with the box-shaped space and the radiation monitoring device is worn on the wrist of the patient, in practical application, the box-shaped space can be matched with the buckle to be made into a form convenient for wearing at any position of the body, a rope or the like can be arranged on the box-shaped space to be made into a necklace for use, and at this time, the distance between the radiation source and the radiation monitoring device can be measured according to practical situations, which is not repeated here.
The invention can also realize continuous measurement and acquire continuous change data of the activity of the nuclide in the body, on one hand, the invention can accurately know which time the patient reaches the discharge standard, improves the utilization rate of the ward, and also prevents the occurrence of the discharge event which does not reach the standard.
According to the invention, through measuring information such as radiation equivalent dose rate data, distance and the like, accurate data of in-vivo activity is obtained, and comparison with a standard is facilitated.
The invention automatically uploads data in the whole course through the wireless communication module, can automatically manage the internal activities of a plurality of patients at the same time, and reduces the workload of medical staff and the risk of exposure to radiation environment.
The invention can identify the actions of the patient by using the inertial detection module, only measures the data under the condition that the standing arm naturally sags when the patient is worn on the wrist, avoids measurement deviation caused by the movement of the wearer, does not need the supervision of measurement work by medical staff, and can effectively identify the falling event of the patient and the emergency abnormal event related to the heart rate at the same time, thereby improving the nursing effectiveness of the medical staff.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and various changes may be made in the above-mentioned embodiment of the present invention, for example, a charging interface may be further provided on the housing to facilitate charging of the power source. All simple, equivalent changes and modifications made in accordance with the claims and the specification of this application fall within the scope of the patent claims. The present invention is not described in detail in the conventional art.
Claims (7)
1. A radiation monitoring method, the radiation monitoring method comprising:
step S1: recording the initial activity A0 of nuclides taken by a patient;
step S2: after the patient takes the nuclide for 30 minutes, standing the patient and keeping the arm naturally drooping, and measuring a group of radiation dose equivalent rate DoseRate_0 by using a radiation monitoring device, wherein DoseRate_0 is corrected data according to the thyroid shape and the body type of the individual patient;
step S3: substituting the initial activity and the radiation dose equivalent rate into a formula p0=doserate_0/A0 to calculate a conversion coefficient P0;
step S4: measuring the radiation dose equivalent rate doseRate of the patient at any moment by the radiation monitoring device, and calculating the residual activity A of the patient by the formula A=doseRate/P0;
in the step S2, heart rate data of the patient is monitored by using a heart rate monitoring module, the radiation dose equivalent rate is measured by using the radiation monitoring device when the heart rate data is normal, and/or acceleration data of the patient is detected by using an inertia detecting module, and the radiation dose equivalent rate is measured by using the radiation monitoring device when the acceleration data is normal.
2. The radiation monitoring method according to claim 1, wherein in said step S1, said species employs iodine 131.
3. The radiation monitoring method according to claim 1, characterized in that in said step S2 the radiation monitoring device is worn at the wrist of the patient.
4. The radiation monitoring method according to claim 1, characterized in that in said step S3, said conversion coefficient is calculated by a processing module.
5. The radiation monitoring method of claim 1, further comprising:
step S5: and drawing a curve of the activity corresponding to the patient along with the time according to the residual activity data.
6. The radiation monitoring method of claim 1, further comprising:
step S6: and setting a threshold value of the residual activity, and sending out a discharge prompt when the residual activity is lower than the threshold value.
7. The radiation monitoring method of claim 1, further comprising:
step S7: the radiation monitoring devices are respectively worn on a plurality of patients, and are respectively connected with the same management computer in a communication way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010296778.7A CN111352147B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring method |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811570031.5A CN109490938B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring device |
| CN202010296778.7A CN111352147B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring method |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570031.5A Division CN109490938B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111352147A CN111352147A (en) | 2020-06-30 |
| CN111352147B true CN111352147B (en) | 2024-02-06 |
Family
ID=65711157
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570031.5A Active CN109490938B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring device |
| CN202010296778.7A Active CN111352147B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring method |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811570031.5A Active CN109490938B (en) | 2018-12-21 | 2018-12-21 | Radiation monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN109490938B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110308473A (en) * | 2019-08-06 | 2019-10-08 | 苏州瑞派宁科技有限公司 | A kind of radiation detector assembly |
| CN110426727A (en) * | 2019-09-04 | 2019-11-08 | 西安艾克斯光电科技有限公司 | A kind of multifunctional monitoring circuit based on wearable device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075747A (en) * | 2016-07-28 | 2016-11-09 | 李丹 | A kind of monitoring protection system after thyroid radionuclide therapy |
| CN107995474A (en) * | 2018-01-12 | 2018-05-04 | 四川超影科技有限公司 | A kind of ward radiation control system based on Internet of Things |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5301673A (en) * | 1991-11-18 | 1994-04-12 | Massachusetts General Hospital | Ambulatory clearance function monitor |
| FR3001299B1 (en) * | 2013-01-23 | 2016-07-22 | Ag Medical | RADIOLOGY DEVICE |
| KR20150109226A (en) * | 2014-03-19 | 2015-10-01 | 주식회사 안트라센 | Flexible, Wearable Information Device |
| CN204288825U (en) * | 2014-12-11 | 2015-04-22 | 深圳市易特科信息技术有限公司 | Wearable anti-nuclear radiation equipment |
| CN205334070U (en) * | 2015-08-28 | 2016-06-22 | 嘉兴职业技术学院 | Radiation is surveyed and radiation warning wrist -watch |
| CN206541127U (en) * | 2017-03-03 | 2017-10-03 | 惠州市佰思卓科技有限公司 | A kind of intelligent watch |
| CN206990811U (en) * | 2017-08-04 | 2018-02-09 | 济宁鲁科检测器材有限公司 | Flaw detection radiation proof alarm bracelet |
| CN209542848U (en) * | 2018-12-21 | 2019-10-25 | 苏州瑞派宁科技有限公司 | A kind of radiation monitoring equipment |
-
2018
- 2018-12-21 CN CN201811570031.5A patent/CN109490938B/en active Active
- 2018-12-21 CN CN202010296778.7A patent/CN111352147B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106075747A (en) * | 2016-07-28 | 2016-11-09 | 李丹 | A kind of monitoring protection system after thyroid radionuclide therapy |
| CN107995474A (en) * | 2018-01-12 | 2018-05-04 | 四川超影科技有限公司 | A kind of ward radiation control system based on Internet of Things |
Non-Patent Citations (1)
| Title |
|---|
| 福尔迪阿克.《放射性同位素的工业应用》.北京：原子能出版社,1992,第368-369页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109490938A (en) | 2019-03-19 |
| CN111352147A (en) | 2020-06-30 |
| CN109490938B (en) | 2021-01-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6941098B2 (en) | Equipment and methods for determining SUVs in radiation tomography | |
| US9618628B2 (en) | Radiology device | |
| US11660054B2 (en) | Medical diagnostic and treatment systems and their methods of use | |
| WO2006090635A1 (en) | Dose meter wearing wear and body surface radiation dosage distribution measuring method and instrument | |
| CN111352147B (en) | Radiation monitoring method | |
| US11969273B2 (en) | Medical devices for diagnostic imaging | |
| CN209542848U (en) | A kind of radiation monitoring equipment | |
| US20090159807A1 (en) | Orofacial radiation detection device for detection of radionuclide contamination from inhalation | |
| EP3107443B1 (en) | A device for measuring a plurality of parameters in patient subject to a treatment with radiopharmaceuticals | |
| Barreto et al. | Environment-aware system for Alzheimer's patients | |
| Protopappas et al. | ALZCARE: An information system for screening, management and tracking of demented patients | |
| JP2003194944A (en) | System and method for control of radiation | |
| CN215932155U (en) | Bluetooth-based real-time radiation and position monitoring system for nuclear medicine patient | |
| KR102486045B1 (en) | Digital healthcare platform system for providing safety management and emergency medical service for radiation workers | |
| CN109691991A (en) | A kind of baby's health monitoring management device based on Internet of Things | |
| CN217213179U (en) | Nuclear medicine branch of academic or vocational study radiation environment intelligent monitoring system | |
| Oliveira et al. | Environment-aware system for Alzheimer’s patients | |
| Carlson et al. | Initial comparison of vital signs monitoring on the wrist with the ankle and bicep | |
| EP4326155A1 (en) | Device and method for detecting and monitoring the potassium concentration | |
| CN113495288A (en) | Hospital radiology department radiation dose monitoring and controlling equipment and method thereof | |
| JPH0367193A (en) | Portable timepiece with radiation detecting function | |
| JP2011098121A (en) | Biological information detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |