CN106772529B - A kind of dose of radiation residual activity value monitoring method and system - Google Patents
A kind of dose of radiation residual activity value monitoring method and system Download PDFInfo
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- CN106772529B CN106772529B CN201611069864.4A CN201611069864A CN106772529B CN 106772529 B CN106772529 B CN 106772529B CN 201611069864 A CN201611069864 A CN 201611069864A CN 106772529 B CN106772529 B CN 106772529B
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- 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
- G01T1/167—Measuring radioactive content of objects, e.g. contamination
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
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- 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
- G01T1/17—Circuit arrangements not adapted to a particular type of detector
- G01T1/178—Circuit arrangements not adapted to a particular type of detector for measuring specific activity in the presence of other radioactive substances, e.g. natural, in the air or in liquids such as rain water
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Abstract
The invention discloses a kind of dose of radiations to remain activity value monitoring method, and method includes carrying out the scanning of radiation agent Residual dose to the target object for taking radiation agent, obtaining the measurement Residual dose at each position in multiple positions of target object.The ratio of the total amount for the radiation agent that the measurement Residual dose and target object for calculating each position of target object are taken obtains the residual activity of the measurement Residual dose at each position of target object.Obtain the Residual dose distribution map of target object.It corrects each position of target object and measures Residual dose, keep each position measurement Residual dose proportionate relationship of target object and each position distribution Residual dose ratio of target object consistent, obtain each position of target object and correct Residual dose.It calculates the multiple position correction Residual dose total amounts of target object and target object takes the ratio of radiation agent total amount, obtain target object whole body correction Residual dose and remain activity.
Description
Technical field
The present invention relates to nuclear medicine technology fields, remain activity value monitoring method more particularly, to a kind of dose of radiation
And system.
Background technique
Currently, high energy element in nuclear medicine using more and more extensive, such as131I element especially will131I is applied to first
Shape gland disease, such as131After the diagnostic total body opacification of I, treatment131I total body opacification,131I removes thyroid cancer Postoperative Residual thyroid gland
Tissue and treatment recurrence and transfer tissue etc., significant in efficacy, safe ready, therefore be China's radionuclide therapy item with fastest developing speed
Mesh.According to China's occupational health standard, receive131Patient's body residual activity activity after I treatment is reduced to the rear 400MBq
It can leave hospital.
At present in the field of nuclear medicine, measurement receives131Patient's body residual activity activity after I treatment, existing and sheet
The most similar implementation of patent is as follows:
Acquisition method: clothes131Patient's empty bladder is advised before I, respectively at clothes1312h, 6h after I, for 24 hours, 48h, 72h carry out
SPECT generalized phenomena, record total body opacification count.
Evaluation method: clothes131Patient fasts are advised after I in 2h, avoid draining urine and excrement as far as possible, it is aobvious with the whole body of 2h
As tale correspondence is taken131I accumulated dose calculates different time thereafter according to the imaging count ratio at variant time point and 2h
Internal remaining percentage, estimates patient's body residual activity activity in point.
The prior art is for clothes131The testing result deviation that activity is remained after I is larger, cannot accurately be taken131After I
Activity is remained in target object.
Summary of the invention
The present invention provides a kind of dose of radiation residual activity value monitoring method and system, to solve to take131Target pair after I
As the not high problem of interior residual activity monitoring precision.
To solve the above problems, the present invention provides a kind of method the method includes,
The scanning of radiation agent Residual dose is carried out to the target object for taking radiation agent, is obtained in multiple positions of target object
The measurement Residual dose at each position；
Calculate the measurement Residual dose at each position of the target object and the total amount of radiation agent that target object is taken
Ratio, obtain each position of target object measurement Residual dose residual activity；
The Residual dose distribution map of target object is obtained, the residual agent distribution map of the target object includes that target object is more
In a position each position distribution Residual dose account for target object distribution residual accumulated dose criteria weights and target object it is each
Position is distributed Residual dose ratio；
The each position measurement Residual dose of the target object is corrected, each position measurement Residual dose ratio of target object is made
Example relationship and each position distribution Residual dose ratio of target object are consistent, obtain each position correction residual agent of target object
Amount；And
It calculates the multiple position correction Residual dose total amounts of the target object and target object takes the ratio of radiation agent total amount
Value obtains target object whole body correction Residual dose and remains activity.
Preferably, the acquisition target object whole body Residual dose distribution map includes:
The scanning of radiation agent Residual dose is carried out to multiple target objects for taking radiation agent, it is each to obtain multiple target objects
Position measures Residual dose；It calculates each each site residues dosage of target object in multiple target objects and accounts for target object whole body
The ratio of Residual dose, and target object whole body residual is accounted for each site residues dosage of target object each in multiple target objects
The ratio of dosage is averaged, and accounts for target object whole body using each each position distribution Residual dose of average value building target object
It is distributed Residual dose weight and each position of target object is distributed Residual dose ratio.
Preferably, each position measurement Residual dose of the target object is corrected, keeps each position measurement of target object residual
It stays dose ratio relationship and each position distribution Residual dose ratio of target object consistent, it is residual to obtain each position correction of target object
The dosage is stayed to include:
Judge that each position measurement Residual dose proportionate relationship of the target object and each position distribution of target object are residual
Stay dose ratio whether consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choose measurement Residual dose sort high position be calibration standard Residual dose, other each site residues agent
Amount is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the target
The each position distribution Residual dose ratio of object is consistent；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues
Dosage is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the mesh
It is consistent to mark each position distribution Residual dose ratio of object；
Step 3, each position correction Residual dose obtained after the step 1 and step 2 correction is averaged, is obtained most
Each position corrects Residual dose eventually.
Based on another embodiment of the invention, the present invention provides a kind of system, the system comprises,
Scanning element obtains target pair for carrying out the scanning of radiation agent Residual dose to the target object for taking radiation agent
As each position measures Residual dose；
It is total to take radiation agent for calculating each position of target object measurement Residual dose with target object for computing unit
The ratio of amount obtains each position measurement Residual dose of target object and remains activity；
Reference data unit, for obtaining target object whole body Residual dose distribution map, the target object whole body residual
Agent distribution map includes that each position distribution Residual dose of target object accounts for target object whole body distribution Residual dose weight and target
Each position of object is distributed Residual dose ratio；
Unit is corrected, for correcting each position measurement Residual dose of the target object, makes each position measurement of target object
Residual dose proportionate relationship and each position distribution Residual dose ratio of target object are consistent, and it is residual to obtain each position correction of target object
Stay dosage；And
Analytical unit takes radiation for calculating each position correction Residual dose total amount of the target object and target object
The ratio of agent total amount obtains target object whole body correction Residual dose and remains activity.
Preferably, the reference data unit is also used to: it is residual to carry out radiation agent to multiple target objects for taking radiation agent
Dose scan is stayed, each position measurement Residual dose of multiple target objects is obtained；Calculate each target object in multiple target objects
Each site residues dosage accounts for the ratio of target object whole body Residual dose, and to each portion of target object each in multiple target objects
The ratio that position Residual dose accounts for target object whole body Residual dose is averaged, and utilizes average value building each position of target object point
Cloth Residual dose accounts for target object whole body distribution Residual dose weight and each position distribution Residual dose ratio of target object.
Preferably, the correction unit is also used to:
Judge each position measurement Residual dose proportionate relationship of the target object and each position distribution residual agent of target object
Whether amount ratio is consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choose measurement Residual dose sort high position be calibration standard Residual dose, other each site residues agent
Amount is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the target
The each position distribution Residual dose ratio of object is consistent；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues
Dosage is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the mesh
It is consistent to mark each position distribution Residual dose ratio of object；
Step 3, each position correction Residual dose obtained after the step 1 and step 2 correction is averaged, is obtained most
Each position corrects Residual dose eventually.
Based on another embodiment of the invention, the present invention provides a kind of system, the system comprises: pedestal, supporter,
Control device, height detection device, lifting device, detection device, computing device, reference data device, means for correcting and analysis
Device；Wherein,
The pedestal is connected with the supporter, for carrying the patient for being in standing state；
The height detection device is installed on the supporter, for detecting the height of the patient；
The control device is electrically connected with the height detection device, for receiving the height, and according to the height
It determines initial sweep position and terminal scan position, and issues driving signal and scanning signal；
The lifting device can be installed on the supporter up or down, and the detection device is installed on the lifting dress
It sets；The lifting device is electrically connected with the control device, for receiving the driving signal, and according to the driving signal band
It moves the detection device and the terminal scan position is moved to by the initial sweep position；
The detection device is electrically connected with the control device, for receiving the scanning signal, and according to the scanning
Signal is scanned the patient, and the control device is also used to receive scanning result and determines institute according to the scanning result
State each position dose of radiation Residual dose of patient's body；
It is total to take radiation agent for calculating each position of target object measurement Residual dose with target object for computing device
The ratio of amount obtains each position measurement Residual dose of target object and remains activity；
Reference data device, for obtaining target object whole body Residual dose distribution map, the target object whole body residual
Agent distribution map includes that each position distribution Residual dose of target object accounts for target object whole body distribution Residual dose weight and target
Each position of object is distributed Residual dose ratio；
Means for correcting makes each position measurement of target object for correcting each position measurement Residual dose of the target object
Residual dose proportionate relationship and each position distribution Residual dose ratio of target object are consistent, and it is residual to obtain each position correction of target object
Stay dosage；And
Analytical equipment takes radiation for calculating each position correction Residual dose total amount of the target object and target object
The ratio of agent total amount obtains target object whole body correction Residual dose and remains activity.
Preferably, which is characterized in that the detection device includes: collimator and linear array detector；Wherein,
The collimator is provided with multiple channels, is used to receive the ray of the patient's body transmitting；
The linear array detector includes multiple probe units, also, each probe unit and each channel one are a pair of
It should be arranged, each probe unit is used to receive and process the ray and output digit signals of the channel transmission；
The control device is electrically connected with the probe unit, for receiving the digital signal, and according to the number
Signal determines the patient's body dose of radiation residual distribution.
Preferably, which is characterized in that the height detection device is multiple and arranged side by side.
Preferably, which is characterized in that the height detection device is ultrasonic detection device.
Preferably, which is characterized in that further include: display；Wherein,
The display is electrically connected with the control device, for showing that the dose of radiation of the patient remains distribution.
Preferably, which is characterized in that the supporter includes: support ontology and top plate；Wherein,
The first end of the support ontology is connected with the pedestal, the second end and the top plate phase of the support ontology
Connection, the top plate are oppositely arranged with the pedestal；
The height detection device is installed on the top plate；The lifting device is installed on the support ontology.
Preferably, which is characterized in that the lifting device includes: driving mechanism, guide rail, connecting plate, sliding block and chain；Its
In,
The guide rail is arranged along the short transverse of the support ontology, and the sliding block is slidably connected with the guide rail；
The input terminal of the driving mechanism is electrically connected with the control device, and output end is connected with the chain, described
Driving mechanism drives the chain to move up and down for receiving the driving signal, and according to the driving signal；
The chain is connected by the connecting plate with the sliding block, for driving the connecting plate to be swept by the starting
It retouches position and is moved to the terminal scan position；
The detection device is installed on the connecting plate.
Preferably, which is characterized in that the driving mechanism is driving motor.
Preferably, which is characterized in that further include: two handles；Wherein,
Two handles are mounted on the supporter and are placed in the two sides of the supporter.
Technical solution of the present invention, patient stand in pedestal, also, detection device follow lifting device by initial sweep
Patient is scanned during the mobile scan position to terminal in position, in this way, operator is not necessarily to carry out patient pendulum position i.e.
Patient can be scanned, efficiently avoid operator and receive more radiation, it is easy to operate, also, detection device passes through
Lifting device is installed on supporter, then detection device is placed in the body side of the patient in standing state, efficiently avoids visiting
It surveys device and squeezes patient, solve complicated for operation, the operator when prior art is monitored dose of radiation residual and receive radiation
It is more and easily squeeze patient the problem of.In addition, control device determines initial sweep position according to the height of the patient detected
Sweep time is substantially reduced, scanning is improved without carrying out whole scanning from top to bottom to patient with terminal scan position
Efficiency, while the amount of radiation that the monitoring device for reducing patient's receiving distributes.
Technical solution of the present invention obtains final goal object total residual activity, and monitoring method deviation of the invention is small, accurately
Degree is high.
Detailed description of the invention
By reference to the following drawings, exemplary embodiments of the present invention can be more fully understood by:
Fig. 1 is that a kind of dose of radiation of one embodiment of the present invention remains activity value monitoring method flow chart；
Fig. 2 is that a kind of dose of radiation of one embodiment of the present invention remains activity value observation system structure chart；
Fig. 3 is that a kind of dose of radiation of one embodiment of the present invention remains activity value observation system structure chart.
Specific embodiment
Exemplary embodiments of the present invention are introduced referring now to the drawings, however, the present invention can use many different shapes
Formula is implemented, and is not limited to the embodiment described herein, and to provide these embodiments be at large and fully disclose
The present invention, and the scope of the present invention is sufficiently conveyed to person of ordinary skill in the field.Show for what is be illustrated in the accompanying drawings
Term in example property embodiment is not limitation of the invention.In the accompanying drawings, identical cells/elements use identical attached
Icon note.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has person of ordinary skill in the field
It is common to understand meaning.Further it will be understood that with the term that usually used dictionary limits, should be understood as and its
The context of related fields has consistent meaning, and is not construed as Utopian or too formal meaning.
Fig. 1 is that a kind of dose of radiation of one embodiment of the present invention remains activity value monitoring method flow chart.Method 100 solves
It has determined and how to have accurately measured patient's body dose of radiation residual activity value, due to the Residual dose that can be measured with partes corporis humani position
It is corrected, method error of measuring value proposed by the present invention is small.
Preferably, method 100 is from 101 startings: carrying out the scanning of radiation agent Residual dose to the target object for taking radiation agent.
The scanning of radiation agent Residual dose is carried out to the target object for taking radiation agent, obtains each position in multiple positions of target object
Measurement Residual dose.In embodiments of the present invention, patient is residual to personal radiation agent using dose of radiation Residue Monitoring device
Dosage is stayed to be scanned.(being detailed in Fig. 3, Fig. 1 is not shown).In embodiments of the present invention, total radiation dosage 100 is taken with human body
For unit, each site residues dosage is 17 unit of thyroid gland position, 9 unit of lung, wing after scanning human body takes dose of radiation
25 unit of Guang, other positions add up to 12 units.
Step 102: the radiation agent that the measurement Residual dose and target object for calculating each position of target object are taken
The ratio of total amount.The total amount for the radiation agent that the measurement Residual dose and target object for calculating each position of target object are taken
Ratio obtains the residual activity of the measurement Residual dose at each position of target object.It is residual with each position radiation agent that step 1 measures
For staying dosage, calculate human body each position radiation agent residual activity be thyroid gland position 17%, lung 9%, bladder 25%,
He adds up to 12% in position.
Step 103: obtaining the Residual dose distribution map of target object.Obtain the Residual dose distribution map of target object, mesh
The residual agent distribution map of mark object include in the multiple positions of target object each position distribution Residual dose account for target object distribution
The criteria weights and each position of target object for remaining accumulated dose are distributed Residual dose ratio.To multiple mesh for taking radiation agent
It marks object and carries out the scanning of radiation agent Residual dose, obtain each position measurement Residual dose of multiple target objects.The present invention is implemented
For example still by taking human body takes 100 unit of total radiation dosage as an example, scanning human body takes each site residues dosage number after dose of radiation
Value is shown in Table one.It calculates each each site residues dosage of target object in multiple target objects and accounts for target object whole body Residual dose
Ratio, and the ratio of target object whole body Residual dose is accounted for each site residues dosage of target object each in multiple target objects
Example is averaged, and numerical value calculated example illustrates see table two.Utilize each each position distribution residual of average value building target object
Dosage accounts for target object whole body distribution Residual dose weight and each position distribution Residual dose ratio of target object.
Table one
Table two
As shown in Table 2, each site residues dosage accounts for target object whole body distribution Residual dose weight point after taking radiation agent
Cloth is thyroid gland position 31%, lung 24%, bladder 31%, other positions total 14%.Or by each site residues of whole body
Dose lonvestion is proportionate relationship, and each site residues dose weights proportionate relationship is close are as follows: thyroid gland position: lung: bladder: other
Position adds up to=2:1.5:2:1.
Step 104, each position of correction target object measures Residual dose.Correct each position measurement residual of target object
Dosage makes each position measurement Residual dose proportionate relationship of target object and each position distribution Residual dose ratio of target object
Unanimously, it obtains each position of target object and corrects Residual dose.Judge that each position measurement Residual dose ratio of target object is closed
Whether system and each position distribution Residual dose ratio of target object are consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choose measurement Residual dose sort high position be calibration standard Residual dose, other each site residues agent
Amount is that reference is corrected with calibration standard Residual dose, and each position correction Residual dose of target object and target object are each
It is consistent that position is distributed Residual dose ratio；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues
Dosage is that reference is corrected with calibration standard Residual dose, and each position correction Residual dose of target object and target object are every
A position distribution Residual dose ratio is consistent；
Step 3, each position correction Residual dose obtained after step 1 and step 2 correction is averaged, is obtained final every
A position corrects Residual dose.
By taking step 101 human body takes 100 unit of total radiation dosage as an example, each position is residual after scanning human body takes dose of radiation
Staying dosage is 17 unit of thyroid gland position, and 9 unit of lung, 25 unit of bladder, other positions add up to 12 units, with reference to step 103
In take each site residues dosage after radiation agent and account for target object whole body distribution Residual dose weight distribution or proportionate relationship, first shape
Gland position: lung: bladder: other positions add up to=2:1.5:2:1, are first calibration standard location with bladder with partial, to human body
Each site residues dosage is calibrated, the partes corporis humani position Residual dose after calibration are as follows: 25 unit of thyroid gland position, lung 17 are single
Position, 25 unit of bladder, other positions add up to 13 units；It is again calibration standard location with thyroid gland position, it is residual to partes corporis humani position
Dosage is stayed to be calibrated, the partes corporis humani position Residual dose after calibration are as follows: 14 unit of thyroid gland position, 13 unit of lung, bladder
17 units, other positions add up to 9 units；Data after calibrating twice are averaged, final each position correction residual is obtained
Dosage is 21 unit of thyroid gland position, and 15 unit of lung, 21 unit of bladder, other positions add up to 11 units.
Table three
Step 105, the multiple position correction Residual dose total amounts of target object are calculated and target object takes radiation agent total amount
Ratio, obtain target object whole body correction Residual dose remain activity.The multiple positions of target object correct Residual dose summation
It is 68, in which: 21 unit of thyroid gland position, 15 unit of lung, 21 unit of bladder, other positions add up to 11 units.Obtain target
It is 68% that object whole body, which corrects Residual dose residual activity,.
Final goal object total residual activity is obtained using technical solution of the present invention, monitoring method deviation of the invention is small,
Accuracy is high.
Fig. 2 is that a kind of dose of radiation of one embodiment of the present invention remains activity value observation system structure chart.System includes,
Scanning element 201 obtains each portion of target object for carrying out the scanning of radiation agent Residual dose to the target object for taking radiation agent
Position measurement Residual dose.Computing unit 202 takes spoke for calculating each position measurement Residual dose of target object and target object
The ratio of agent total amount is penetrated, each position measurement Residual dose of target object is obtained and remains activity.Reference data unit 203, for obtaining
Target object whole body Residual dose distribution map is taken, target object whole body residual agent distribution map includes that each position distribution of target object is residual
Dosage is stayed to account for target object whole body distribution Residual dose weight and each position distribution Residual dose ratio of target object.Correction
Unit 204 closes each position measurement Residual dose ratio of target object for correcting each position measurement Residual dose of target object
System is consistent with each position distribution Residual dose ratio of target object, obtains each position of target object and corrects Residual dose.Analysis is single
Member 205 is taken the ratio of radiation agent total amount for calculating each position correction Residual dose total amount of target object and target object, is obtained
Take target object whole body correction Residual dose residual activity.
Preferably, reference data unit 203 is also used to: carrying out radiation agent residual to multiple target objects for taking radiation agent
Dose scan obtains each position measurement Residual dose of multiple target objects；It is each to calculate each target object in multiple target objects
Site residues dosage accounts for the ratio of target object whole body Residual dose, and to each position of target object each in multiple target objects
The ratio that Residual dose accounts for target object whole body Residual dose is averaged, and is distributed using each position of average value building target object
Residual dose accounts for target object whole body distribution Residual dose weight and each position distribution Residual dose ratio of target object.
Preferably, correction unit 204 is also used to:
Judge each position measurement Residual dose proportionate relationship of target object and each position distribution Residual dose ratio of target object
Whether example is consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choosing measurement Residual dose and sorting from large to small highest position is calibration standard Residual dose, other are each
Site residues dosage is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and mesh
It is consistent to mark each position distribution Residual dose ratio of object；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues
Dosage is that reference is corrected with calibration standard Residual dose, and each position correction Residual dose of target object and target object are every
A position distribution Residual dose ratio is consistent；
Step 3, each position correction Residual dose obtained after step 1 and step 2 correction is averaged, is obtained final every
A position corrects Residual dose.
The function of system 200 is corresponding with method 100, is no longer repeated herein.
Fig. 3 is that a kind of dose of radiation of one embodiment of the present invention remains activity value observation system structure chart.Such as Fig. 3 a, figure
Shown in 3b and Fig. 3 c, system 300 includes: pedestal 301, supporter 302, top plate 303, control device 305, height detection device
304, lifting device 307, detection device 306, computing device 308, reference data device 309, means for correcting 310 and analytical equipment
311；Wherein,
Pedestal 301 is connected with supporter, for carrying the patient for being in standing state；
Height detection device 304 is installed on supporter, for detecting the height of patient；
Control device 305 is electrically connected with height detection device 304, determines that starting is swept for receiving height, and according to height
Position and terminal scan position are retouched, and issues driving signal and scanning signal；
Lifting device 307 can be installed on supporter up or down, and detection device 306 is installed on lifting device；Lifting dress
It sets 307 to be electrically connected with control device 305, drives detection device to be swept by originating for receiving driving signal, and according to driving signal
Retouch the mobile scan position to terminal in position；
Detection device 306 is electrically connected with control device 305, for receiving scanning signal, and according to scanning signal to patient
It is scanned, control device 305 is also used to receive scanning result and determines each position radiation agent of patient's body according to scanning result
Measure Residual dose；
It is total to take radiation agent for calculating each position of target object measurement Residual dose with target object for computing device 308
The ratio of amount obtains each position measurement Residual dose of target object and remains activity；
Reference data device 309, for obtaining target object whole body Residual dose distribution map, target object whole body remains agent
Distribution map includes that each position distribution Residual dose of target object accounts for target object whole body distribution Residual dose weight and target pair
As each position is distributed Residual dose ratio.Reference data device 309 is also used to carry out multiple target objects for taking radiation agent
The scanning of radiation agent Residual dose obtains each position measurement Residual dose of multiple target objects；It calculates each in multiple target objects
Each site residues dosage of target object accounts for the ratio of target object whole body Residual dose, and to each target in multiple target objects
The ratio that each site residues dosage of object accounts for target object whole body Residual dose is averaged, and constructs target object using average value
Each position distribution Residual dose accounts for target object whole body distribution Residual dose weight and each position distribution residual agent of target object
Amount ratio.
Means for correcting 310 keeps each position measurement of target object residual for correcting each position measurement Residual dose of target object
It stays dose ratio relationship and each position distribution Residual dose ratio of target object consistent, obtains each position correction residual of target object
Dosage.Correction unit 310 is also used to:
Judge each position measurement Residual dose proportionate relationship of target object and each position distribution Residual dose ratio of target object
Whether example is consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choosing measurement Residual dose and sorting from large to small highest position is calibration standard Residual dose, other are each
Site residues dosage is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and mesh
It is consistent to mark each position distribution Residual dose ratio of object；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues
Dosage is that reference is corrected with calibration standard Residual dose, and each position correction Residual dose of target object and target object are every
A position distribution Residual dose ratio is consistent；
Step 3, each position correction Residual dose obtained after step 1 and step 2 correction is averaged, is obtained final every
A position corrects Residual dose.
Analytical equipment 311 takes radiation for calculating each position correction Residual dose total amount of target object and target object
The ratio of agent total amount obtains target object whole body correction Residual dose and remains activity.
Preferably, detection device includes: collimator and linear array detector；Wherein,
Collimator is provided with multiple channels, is used to receive the ray of patient's body transmitting；
Linear array detector includes multiple probe units, also, each probe unit is arranged in a one-to-one correspondence with each channel, each to detect
Unit is used to receive and process the ray and output digit signals of channel transmission；
Control device is electrically connected with probe unit, determines patient's body for receiving digital signal, and according to digital signal
Dose of radiation residual distribution.
Preferably, which is characterized in that height detection device is multiple and arranged side by side.
Preferably, which is characterized in that height detection device is ultrasonic detection device.
Preferably, which is characterized in that further include: display；Wherein,
Display is electrically connected with control device, for showing that the dose of radiation of patient remains distribution.
Preferably, which is characterized in that supporter includes: support ontology and top plate；Wherein,
The first end of support ontology is connected with pedestal, supports the second end of ontology to be connected with top plate, top plate and pedestal
It is oppositely arranged；
Height detection device is installed on top plate；Lifting device is installed on support ontology.
Preferably, which is characterized in that lifting device includes: driving mechanism, guide rail, connecting plate, sliding block and chain；Wherein,
Guide rail is arranged along the short transverse of support ontology, and sliding block is slidably connected with guide rail；
The input terminal of driving mechanism is electrically connected with control device, and output end is connected with chain, and driving mechanism is for receiving
Driving signal, and moved up and down according to driving signal drive chain；
Chain is connected by connecting plate with sliding block, for driving connecting plate to be scanned to terminal by the movement of initial sweep position
Position；
Detection device is installed on connecting plate.
Preferably, which is characterized in that driving mechanism is driving motor.
Preferably, which is characterized in that further include: two handles；Wherein,
Two handles are mounted on supporter and are placed in the two sides of supporter.
Patient stand remains stationary state in pedestal 301.Height detection device 304 detects the height of patient, and will inspection
The height measured is sent to control device 305, and control device 305 receives the height, and determines initial sweep position according to the height
It sets and terminal scan position, and sending driving signal and scanning signal.What 307 receiving control device 305 of lifting device was sent
Driving signal, and scan position to terminal is moved from initial sweep position according to driving signal.Since detection device 306 is installed on
Lifting device 307, so the mobile drive detection device 306 of lifting device 307 is scanned to terminal by the movement of initial sweep position
Position.306 receiving control device 305 of detection device send scanning signal, detection device 306 follow lifting device 307 by
Patient is scanned during the mobile scan position to terminal in initial sweep position, and in real time by initial sweep position to end
The body of the corresponding patient in all position places between spot scan position is scanned, and scanning result is sent in real time
Control device 305.Control device 305 receives scanning result, and determines patient's body dose of radiation residual point according to scanning result
Cloth.After scanned, patient can leave pedestal 301.
The present invention is described by reference to a small amount of embodiment.However, it is known in those skilled in the art, as
Defined by subsidiary Patent right requirement, in addition to the present invention other embodiments disclosed above equally fall in it is of the invention
In range.
Normally, all terms used in the claims are all solved according to them in the common meaning of technical field
It releases, unless in addition clearly being defined wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example being construed in described device, component etc., unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate sequence, unless explicitly stated otherwise.
Claims (15)
1. a kind of dose of radiation remains activity value monitoring method, the method includes,
The scanning of radiation agent Residual dose is carried out to the target object for taking radiation agent, is obtained each in multiple positions of target object
The measurement Residual dose at position；
Calculate the measurement Residual dose at each position of the target object and the ratio of the total amount of radiation agent that target object is taken
Value obtains the residual activity of the measurement Residual dose at each position of target object；
The Residual dose distribution map of target object is obtained, the Residual dose distribution map of the target object includes that target object is multiple
Each position distribution Residual dose accounts for criteria weights and each portion of target object of target object distribution residual accumulated dose in position
Bit distribution Residual dose ratio；
The each position measurement Residual dose of the target object is corrected, each position measurement Residual dose ratio of target object is closed
System is consistent with each position distribution Residual dose ratio of target object, obtains each position of target object and corrects Residual dose；With
And
It calculates the multiple position correction Residual dose total amounts of the target object and target object takes the ratio of radiation agent total amount, obtain
Take target object whole body correction Residual dose residual activity.
2. according to the method described in claim 1, further include: obtain target object whole body Residual dose distribution map:
The scanning of radiation agent Residual dose is carried out to multiple target objects for taking radiation agent, obtains each position of multiple target objects
Measure Residual dose；It calculates each each site residues dosage of target object in multiple target objects and accounts for target object whole body residual
The ratio of dosage, and target object whole body Residual dose is accounted for each site residues dosage of target object each in multiple target objects
Ratio be averaged, using average value building target object each position distribution Residual dose account for target object whole body be distributed it is residual
Stay dose weights and each position distribution Residual dose ratio of target object.
3. making target object according to the method described in claim 1, correcting each position measurement Residual dose of the target object
Each position measurement Residual dose proportionate relationship and each position distribution Residual dose ratio of target object are consistent, obtain target pair
As each position correction Residual dose includes:
Judge each position measurement Residual dose proportionate relationship of the target object and each position distribution residual agent of target object
Whether amount ratio is consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choosing measurement Residual dose and sorting from large to small highest position is calibration standard Residual dose, other each positions
Residual dose is that reference is corrected with calibration standard Residual dose, and each position of target object corrects Residual dose and institute
It is consistent to state each position distribution Residual dose ratio of target object；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues dosage
It is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the target pair
As each position distribution Residual dose ratio is consistent；
Step 3, each position correction Residual dose obtained after the step 1 and step 2 correction is averaged, is obtained final every
A position corrects Residual dose.
4. a kind of dose of radiation remains activity value observation system, the system comprises,
It is each to obtain target object for carrying out the scanning of radiation agent Residual dose to the target object for taking radiation agent for scanning element
Position measures Residual dose；
Computing unit takes radiation agent total amount for calculating each position measurement Residual dose of the target object and target object
Ratio obtains each position measurement Residual dose of target object and remains activity；
Reference data unit, for obtaining target object whole body Residual dose distribution map, the target object whole body Residual dose
Distribution map includes that each position distribution Residual dose of target object accounts for target object whole body distribution Residual dose weight and target pair
As each position is distributed Residual dose ratio；
Unit is corrected, for correcting each position measurement Residual dose of the target object, makes each position measurement residual of target object
Dose ratio relationship and each position distribution Residual dose ratio of target object are consistent, obtain each position correction residual agent of target object
Amount；And
It is total to take radiation agent for calculating each position of target object correction Residual dose total amount with target object for analytical unit
The ratio of amount obtains target object whole body correction Residual dose and remains activity.
5. system according to claim 4, the reference data unit is also used to: to multiple targets pair for taking radiation agent
As carrying out the scanning of radiation agent Residual dose, each position measurement Residual dose of multiple target objects is obtained；Calculate multiple target objects
In each each site residues dosage of target object account for the ratio of target object whole body Residual dose, and to every in multiple target objects
The ratio that a each site residues dosage of target object accounts for target object whole body Residual dose is averaged, and constructs mesh using average value
Each position distribution Residual dose of mark object accounts for target object whole body distribution Residual dose weight and each position distribution of target object
Residual dose ratio.
6. system according to claim 4, the correction unit is also used to:
Judge each position measurement Residual dose proportionate relationship of the target object and each position distribution Residual dose ratio of target object
Whether example is consistent；
If consistent, do not need to be corrected；
If inconsistent, it is corrected according to the following steps:
Step 1, choosing measurement Residual dose and sorting from large to small highest position is calibration standard Residual dose, other each positions
Residual dose is that reference is corrected with calibration standard Residual dose, and each position of target object corrects Residual dose and institute
It is consistent to state each position distribution Residual dose ratio of target object；
Step 2, the position for choosing measurement Residual dose sequence second is calibration standard Residual dose, other each site residues dosage
It is that reference is corrected with calibration standard Residual dose, each position correction Residual dose of target object and the target pair
As each position distribution Residual dose ratio is consistent；
Step 3, each position correction Residual dose obtained after the step 1 and step 2 correction is averaged, is obtained final every
A position corrects Residual dose.
7. a kind of dose of radiation Residual dose monitors system characterized by comprising pedestal, supporter, control device, height
Detection device, lifting device, detection device, computing device, reference data device, means for correcting and analytical equipment；Wherein,
The pedestal is connected with the supporter, for carrying the target object for being in standing state；
The height detection device is installed on the supporter, for detecting the height of the target object；
The control device is electrically connected with the height detection device, is determined for receiving the height, and according to the height
Initial sweep position and terminal scan position, and issue driving signal and scanning signal；
The lifting device can be installed on the supporter up or down, and the detection device is installed on the lifting device；
The lifting device is electrically connected with the control device, and is driven for receiving the driving signal, and according to the driving signal
The detection device is moved to the terminal scan position by the initial sweep position；
The detection device is electrically connected with the control device, for receiving the scanning signal, and according to the scanning signal
The target object is scanned, the control device is also used to receive scanning result and determines institute according to the scanning result
State each position dose of radiation Residual dose in target object body；
Computing device takes the ratio of radiation agent total amount for calculating each position measurement Residual dose of target object and target object
Value obtains each position measurement Residual dose of target object and remains activity；
Reference data device, for obtaining target object whole body Residual dose distribution map, the target object whole body Residual dose
Distribution map includes that each position distribution Residual dose of target object accounts for target object whole body distribution Residual dose weight and target pair
As each position is distributed Residual dose ratio；
Means for correcting makes each position measurement residual of target object for correcting each position measurement Residual dose of the target object
Dose ratio relationship and each position distribution Residual dose ratio of target object are consistent, obtain each position correction residual agent of target object
Amount；And
It is total to take radiation agent for calculating each position of target object correction Residual dose total amount with target object for analytical equipment
The ratio of amount obtains target object whole body correction Residual dose and remains activity.
8. dose of radiation Residual dose according to claim 7 monitors system, which is characterized in that the detection device packet
It includes: collimator and linear array detector；Wherein,
The collimator is provided with multiple channels, is used to receive the ray emitted in the target object body；
The linear array detector includes multiple probe units, also, each probe unit is corresponded with each channel and set
It sets, each probe unit is used to receive and process the ray and output digit signals of the channel transmission；
The control device is electrically connected with the probe unit, for receiving the digital signal, and according to the digital signal
Determine the target object Radioimmunoimaging residual distribution.
9. dose of radiation Residual dose according to claim 7 monitors system, which is characterized in that the height detection device
It is multiple and arranged side by side.
10. dose of radiation Residual dose according to claim 7 monitors system, which is characterized in that the height detection dress
It is set to ultrasonic detection device.
11. dose of radiation Residual dose according to claim 7 monitors system, which is characterized in that further include: display；
Wherein,
The display is electrically connected with the control device, for showing that the dose of radiation of the target object remains distribution.
12. dose of radiation Residual dose according to any one of claims 7 to 11 monitors system, which is characterized in that institute
Stating supporter includes: support ontology and top plate；Wherein,
The first end of the support ontology is connected with the pedestal, and the second end of the support ontology is connected with the top plate
It connects, the top plate is oppositely arranged with the pedestal；
The height detection device is installed on the top plate；The lifting device is installed on the support ontology.
13. dose of radiation Residual dose according to claim 12 monitors system, which is characterized in that the lifting device packet
It includes: driving mechanism, guide rail, connecting plate, sliding block and chain；Wherein,
The guide rail is arranged along the short transverse of the support ontology, and the sliding block is slidably connected with the guide rail；
The input terminal of the driving mechanism is electrically connected with the control device, and output end is connected with the chain, the driving
Mechanism drives the chain to move up and down for receiving the driving signal, and according to the driving signal；
The chain is connected by the connecting plate with the sliding block, for driving the connecting plate by the initial sweep position
It sets and is moved to the terminal scan position；
The detection device is installed on the connecting plate.
14. dose of radiation Residual dose according to claim 13 monitors system, which is characterized in that the driving mechanism is
Driving motor.
15. dose of radiation Residual dose according to any one of claims 7 to 11 monitors system, which is characterized in that also
It include: two handles；Wherein,
Two handles are mounted on the supporter and are placed in the two sides of the supporter.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101627917A (en) * | 2008-07-14 | 2010-01-20 | 上海西门子医疗器械有限公司 | Method and system for determining scanning range |
| CN104570044A (en) * | 2014-12-10 | 2015-04-29 | 北京永新医疗设备有限公司 | Real-time detecting system and method for radioactive materials carried by personnel |
| CN104714245A (en) * | 2015-02-09 | 2015-06-17 | 上海交通大学 | Semi-chromatography gamma scanning method for low-medium radioactive waste barrel measurement |
| CN105158787A (en) * | 2015-06-03 | 2015-12-16 | 南京航空航天大学 | Dose rate detector and dose rate detection method |
| CN105445777A (en) * | 2015-12-01 | 2016-03-30 | 南京航空航天大学 | Boron neutron capture therapy dose measuring method |
| CN105435377A (en) * | 2015-12-01 | 2016-03-30 | 南京航空航天大学 | Radiotherapy dosage measuring device and measuring method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7557353B2 (en) * | 2001-11-30 | 2009-07-07 | Sicel Technologies, Inc. | Single-use external dosimeters for use in radiation therapies |
| US7399977B2 (en) * | 2004-07-23 | 2008-07-15 | University Health Network | Apparatus and method for determining radiation dose |
| US8817258B2 (en) * | 2012-05-21 | 2014-08-26 | Common Sensing Inc. | Dose measurement system and method |
| JP2016080529A (en) * | 2014-10-17 | 2016-05-16 | 株式会社東芝 | Radiation measuring device and radiation measuring method |
| JP5748927B1 (en) * | 2015-01-19 | 2015-07-15 | 株式会社フジタ | Radioactive substance monitoring device and radioactive substance monitoring method |
-
2016
- 2016-11-28 CN CN201611069864.4A patent/CN106772529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101627917A (en) * | 2008-07-14 | 2010-01-20 | 上海西门子医疗器械有限公司 | Method and system for determining scanning range |
| CN104570044A (en) * | 2014-12-10 | 2015-04-29 | 北京永新医疗设备有限公司 | Real-time detecting system and method for radioactive materials carried by personnel |
| CN104714245A (en) * | 2015-02-09 | 2015-06-17 | 上海交通大学 | Semi-chromatography gamma scanning method for low-medium radioactive waste barrel measurement |
| CN105158787A (en) * | 2015-06-03 | 2015-12-16 | 南京航空航天大学 | Dose rate detector and dose rate detection method |
| CN105445777A (en) * | 2015-12-01 | 2016-03-30 | 南京航空航天大学 | Boron neutron capture therapy dose measuring method |
| CN105435377A (en) * | 2015-12-01 | 2016-03-30 | 南京航空航天大学 | Radiotherapy dosage measuring device and measuring method thereof |
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