CN108568037A - Ejected wave knife treatment plan parameters extraction method and computer readable storage medium - Google Patents
Ejected wave knife treatment plan parameters extraction method and computer readable storage medium Download PDFInfo
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Abstract
The invention discloses a kind of ejected wave knife treatment plan parameters extraction methods and computer readable storage medium, method to include：Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field path file, project documentation and planning report file；According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；The dose volume histogram of each organ is obtained from the planning report file；According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.Working efficiency can be improved in the present invention, while ensureing the accuracy and unified management of data, and can mitigate physics teacher's workload.
Description
Technical field
The present invention relates to more particularly to a kind of ejected wave knife treatment plan parameters extraction method and computer-readable storage
Medium.
Background technology
Recently as the fast development of accelerator art and image guidance techniques etc. so that radiotherapy progresses into
The precisely medical treatment epoch, and whole body stereo orienting radiation therapy (SBRT) is exactly the Typical Representative of accurate radiotherapy technology.Ejected wave knife
(Cyberknife) fast spy is fallen with multiple degrees of freedom, all standing of space multistory angle, a variety of trace modes, dose gradient with it
Point can preferably protect target area normal surrounding tissue while ensureing that target area obtains high dose.But this also give physics teacher into
Row plan parameters are extracted and normal structure is brought certain challenge by amount assessment etc., and this aspect is due to ejected wave knife itself
Mechanical structure and Software for Design are more complicated, are on the other hand then since SBRT compared to conventional irradiation to needing more assessments
The evaluation criteria of parameter, normal tissue dosis tolerata is also more harsh.
Invention content
The technical problem to be solved by the present invention is to：A kind of ejected wave knife treatment plan parameters extraction method and meter are provided
Calculation machine readable storage medium storing program for executing ensures the accuracy and unified management of data while improving working efficiency.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of ejected wave knife treatment plan parameters from
Dynamic extracting method, including：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field
Path file, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
The invention further relates to a kind of computer readable storage mediums, are stored thereon with computer program, and described program is located
Reason device realizes following steps when executing：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field
Path file, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
The beneficial effects of the present invention are：By obtaining relevant treatment plan file automatically, and automatically from treatment plan
Required basic plan parameter is parsed in file, while by acquired dose volume histogram, being calculated and being jeopardized organ
Exposure dose information and volume information, substantially increase the treatment effeciency and accuracy of clinical data.The present invention passes through automatic
It obtains treatment plan file and carries out analytical Calculation automatically, ensure that the accuracy of data and unification are managed while improving working efficiency
Reason, and physics teacher's workload can be mitigated.
Description of the drawings
Fig. 1 is a kind of flow chart of ejected wave knife treatment plan parameters extraction method of the present invention；
Fig. 2 is the method flow diagram of the embodiment of the present invention one.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, below in conjunction with embodiment and coordinate attached
Figure is explained in detail.
The design of most critical of the present invention is：The name of Normalized Treatment project documentation, Formatting Output dose volume are straight
Side's figure and voxel point data, automatic to obtain treatment plan file and parse accordingly, calculate, fast and easy accurately obtains
To parameter needed for treatment.
Explanation of nouns：
Referring to Fig. 1, a kind of ejected wave knife treatment plan parameters extraction method, including：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field
Path file, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
As can be seen from the above description, the beneficial effects of the present invention are：Ensure the accurate of data while improving working efficiency
Degree and unified management.
Further, described according to the dose volume histogram, obtain the exposure dose information and volume for jeopardizing organ
Information is specially：
The corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, it is maximum as plan
Dose point；
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
Obtain the total volume of parallel organ；
The corresponding volume of preset dose is obtained in the dose volume histogram of parallel organ, as irradiated volume；
The difference for calculating the total volume and the irradiated volume obtains the protection volume of the parallel organ.
Further, the maximum dose point of the plan and dosis tolerata are obtained by linear interpolation.
Seen from the above description, since the dose volume histogram obtained from planning report file is 100 discrete
Data point, therefore obtain by linear interpolation the dosage of corresponding volume.
Further, it before obtaining treatment plan file in the knife radiation therapeutic planning system from ejected wave, further wraps
It includes：
It according to the radiotherapy number of patient, the course for the treatment of number, splits enterprise number and splits quota, treatment plan file is ordered
Name.
Further, treatment plan file is obtained in the knife radiation therapeutic planning system from ejected wave is specially：
According to the title for the treatment of plan file, corresponding treatment plan text is obtained from ejected wave knife radiation therapeutic planning system
Part.
Seen from the above description, by being named according to unified naming rule to project documentation, it is convenient for data management,
And it can easily obtain corresponding project documentation according to name.
Further, each organ and a unique identifier are associated respectively.
Seen from the above description, data extraction and scientific research is convenient for need.
Further, the treatment plan file further includes that dose point distribution file and organ sketch outline file；
Further include：
File is sketched outline according to the dose point distribution file and organ, obtains tissue points information, the tissue points letter
Breath includes the unique identifier of space coordinate, CT values, dose value and affiliated organ；
The tissue points information is exported according to preset format.
Seen from the above description, by tissue points Formatting Output, it is more complicated to solve data structure in project documentation, inconvenient
In the clinical research data processing the problem of, consequently facilitating follow-up study.
The present invention also proposes a kind of computer readable storage medium, is stored thereon with computer program, and described program is located
Reason device realizes following steps when executing：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field
Path file, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
Further, described according to the dose volume histogram, obtain the exposure dose information and volume for jeopardizing organ
Information is specially：
The corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, it is maximum as plan
Dose point；
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
Obtain the total volume of parallel organ；
The corresponding volume of preset dose is obtained in the dose volume histogram of parallel organ, as irradiated volume；
The difference for calculating the total volume and the irradiated volume obtains the protection volume of the parallel organ.
Further, the maximum dose point of the plan and dosis tolerata are obtained by linear interpolation.
Before obtaining treatment plan file in the knife radiation therapeutic planning system from ejected wave, further comprise：
It according to the radiotherapy number of patient, the course for the treatment of number, splits enterprise number and splits quota, treatment plan file is ordered
Name.
Further, treatment plan file is obtained in the knife radiation therapeutic planning system from ejected wave is specially：
According to the title for the treatment of plan file, corresponding treatment plan text is obtained from ejected wave knife radiation therapeutic planning system
Part.
Further, further include：
Each organ and a unique identifier are associated respectively.
Further, the treatment plan file further includes that dose point distribution file and organ sketch outline file；Also wrap
It includes：
File is sketched outline according to the dose point distribution file and organ, obtains tissue points information, the tissue points letter
Breath includes the unique identifier of space coordinate, CT values, dose value and affiliated organ；
The tissue points information is exported according to preset format.
Embodiment one
Fig. 2 is please referred to, the embodiment of the present invention one is：A kind of ejected wave knife treatment plan parameters extraction method, including
Following steps：
S1：It according to the radiotherapy number of patient, the course for the treatment of number, splits enterprise number and splits quota, treatment plan file is carried out
Name.
S2：According to the title for the treatment of plan file, corresponding treatment meter is obtained from ejected wave knife radiation therapeutic planning system
File is drawn, the treatment plan file includes irradiation field path file, project documentation and planning report file.Wherein, irradiation field
Path file stores all irradiation field information, including irradiation field quantity, irradiation field number, irradiation field machine hop count, irradiation field are shone
Penetrate dosage etc..Project documentation storage irradiation plan main information.The target area of planning report file storage irradiation plan, structural volume
With the summary info of dosage.
S3：According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained.
It includes the following terms to plan basic parameter extraction：
(1) treatment plan number
(2) target area title, volume
(3) single dose, accumulated dose
(4) plan normalizing target area, prescribed dose, normalizing isodose
(5) target area CI (conformal index), nCI (new conformal index), (target area covers by HI (evenness index), Coverage
Rate)
(6) number of nodes, irradiation field number, machine hop count
(7) trace mode
(8) collimator
Wherein, single dose, accumulated dose, plan normalizing target area, prescribed dose, normalizing isodose, number of nodes, irradiation field
The information such as number, machine hop count can be obtained by parsing irradiation field path file；The information such as trace mode, collimator are counted by parsing
Draw file acquisition；The information such as treatment plan number, target area title, volume, target area CI, nCI, HI, Coverage can be counted by parsing
Report file is drawn to obtain.
S4：The dose volume histogram (DVH) of each organ is obtained from the planning report file.
S5：According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
This step is to obtain the maximum dose point of plan, the dosis tolerata of normal organ and the guarantor of parallel organ that jeopardize organ
Watch box accumulates.It is analyzed from functional perspective, the organ of human body is divided into parallel organ (such as lung) and serial organ (such as spinal cord, nerve and stomach
Enteron aisle).These organs are considered including chain type functional unit, to ensure that the normal function of organ, all functional units are all necessary
It is protected.Parallel organ functional unit is independent of each other.For example, the alveoli destruction of certain amount does not interfere with entire organ
Function, when the destruction of only lung volume reaches a threshold value, respiratory capacity can just significantly decrease.In AAPM
(United States Medicine physics annual meeting comes for (American Association of Physicists in Medicine) TG101 reports
It is published in medical physicist on July 14th, 2010 from 24 acknowledged experts of 19 research institutions, Radio-oncologist is controlled
Treat the report of teacher's practical guide) in, have for the maximum dose point of the plan of each organ, dosis tolerata and protection volume certain
Limit value.When carrying out Program Assessment, plan maximum dose point and dosis tolerata has to be lower than given threshold value, and protects volume
It necessarily is greater than given threshold value.
Specifically, the corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, as
The maximum dose point of plan；Dose volume histogram upper volume is 0.035cc when institutes with reference to AAPM TG101 reports by the present embodiment
Corresponding dosage is as the maximum dose point of plan, and therefore, in the present embodiment, preset first volume is 0.035cc.
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
By taking tracheae as an example, evaluation criteria is v (15Gy) ＜ 4cc, i.e., the corresponding dosage of 4cc volumes is less than on the DVH curves of tracheae
15Gy, then for tracheae, corresponding second volume is 4cc.
Obtain the total volume of parallel organ；The corresponding body of preset dose is obtained in the dose volume histogram of parallel organ
Product, as irradiated volume；The difference for calculating the total volume and the irradiated volume obtains the protective of the parallel organ
Product.Wherein, preset dose is threshold value of the organ by radiation exposure, is more than this threshold value, and organ is possible to generate complication, make
At organ damage, therefore, preset dose is the corresponding normal structure dosis tolerata of the parallel organ.It is for 5 livers with gradation
Example, it is desirable that the volume of the liver of the dose irradiation less than 21Gy should be more than 700cc, and the total volume for reading liver first is VTotal,
The corresponding volumes of the upper 21Gy of DVH are VRadio, then volume V is protectedProtect=VTotal-VRadio, finally in the single above planned value one of plan
Column shows VProtect。
Further, further include：Each organ and a unique identifier are associated respectively；For example, can be that each organ is assigned
Give a unique ID number.
Further, the plan of ejected wave knife will be every in planning report file in global maximum dose point as 100% dosage
The DVH data output of a organ is relative dosage, i.e., is indicated with the percentage of absolute dosages divided by maximum dose point.Each device
The DVH of official is divided into 100 discrete points, interval 1% from 0%-100%.The dosage that each pair of point is answered is relative dosage, body
Product is absolute volume.That is, DVH data are directly to be read from planning report file.Each, which is sketched outline, can correspond to one
DVH, ejected wave knife planning system are to carry out data output with 1% for an interval for the output of DVH, each DVH in this way is bent
Line will be divided into 100 intervals (0%-100%), each corresponding data point in interval.
That is, for step S4, the DVH that is obtained from the planning report file of ejected wave knife radiation therapeutic planning system
Data are 100 discrete data points in the coordinate system that transverse and longitudinal coordinate axis is dosage and volume.Further, it formats
Output dose volume histogram diagram data, output format are as follows：
d0v0ID
……
d99v99ID
Wherein, diIndicate percent dose, viIndicate percent dose diCorresponding volume, ID indicate that the ID of each organ is compiled
Number.
Due to only exporting 100 discrete data points, for step S5, the meter is obtained by linear interpolation
Draw maximum dose point and dosis tolerata.Specifically, it by taking the maximum dose point of plan as an example, first finds apart from the number that volume is the first volume
Two nearest data points at left and right sides of strong point, it is assumed that coordinate is respectively (X1, Y1)、(X2, Y2), then it is X to plan maximum dose point
=X1+[(X2-X1)/(Y2-Y1)]×(Y-Y1), wherein Y is the first volume.
Further, the treatment plan file further includes that dose point distribution file and organ sketch outline file；According to
Both of these documents, Formatting Output tissue points space data, specifically：It is hooked according to the dose point distribution file and organ
Outline file obtains tissue points information, and the tissue points information includes space coordinate, CT values, dose value and affiliated organ
ID；The tissue points information is exported according to preset format.
The data of dose point distribution file storage include the space coordinate of each tissue points, CT values and dose value.Organ hooks
The storage of outline file is sketching outline for each organ.Dose point distribution file and organ sketch outline every inside file
The space coordinate of a tissue points is one-to-one, combine both can be obtained by each tissue points space coordinate,
Which organ CT values, dose value and the tissue points belong to.
The present embodiment is convenient for data management by being named according to unified naming rule to treatment plan file.It is logical
Formatting Output DVH data and voxel point data are crossed, data structure is more complicated in solution treatment plan file, is not easy to clinic
The problem of scientific data processing, data are exported convenient for physics teacher or doctor, then needs to carry out mass processing according to respective.
By obtaining treatment plan file automatically and carrying out parsing accordingly, calculating, fast and easy is accurately obtained ginseng needed for treatment
Number, significantly reduces the burden of physics teacher or doctor, also greatly improves work efficiency and data reliability.
Embodiment two
The present embodiment is a concrete application scene of above-described embodiment, is included the following steps：
1, project documentation is named；
For the ease of data management, it is necessary first to which unified planning file designation rule, being intended to file designation is：Radiotherapy
Number _ course for the treatment of number _ fractionation enterprise number _ fractionation quota.By taking S160281_Ci_j_Tk is named in plan as an example, wherein S160281 is disease
The radiotherapy number of people, Ci indicate that i-th of course for the treatment of (C is the abbreviation of course), j indicate j-th of plan after plan fractionation, Tk tables
When showing more target area irradiations, it is sometimes desirable to different target areas be separated different plans and irradiated, k is the number for indicating to split plan.
Patient if radiotherapy number is S160281 carries out the treatment of first time ejected wave knife, if target there are one the patient is each on head and abdomen
Area, respectively Tumor1 and Tumor2, if Tumor1 and Tumor2 are placed on one in the works while being treated, two split
A plan is respectively designated as S160281_C1_1_T1 and S160281_C1_2_T1.If Tumor1 and Tumor2 are split into two
A plan is irradiated respectively, then two split plan is respectively designated as S160281_C1_1_T2 and S160281_C1_2_T2.
2, project documentation imports；
All project documentations are first imported into radiotherapy information management system (RTIS) between parameter extraction.With plan
For S160281_C1_1_T2, at least need to import following five files：
S160281_C1_1_T2_beam_path.xml (irradiation field path file)
S160281_C1_1_T2_plan.xml (project documentation)
S160281_C1_1_T2_rtdose.dcm (dose point distribution file)
S160281_C1_1_T2_rtss.dcm (organ sketches outline file)
S160281_C1_1_T2_reports.xml (planning report file)
Wherein, all irradiation field information of S160281_C1_1_T2_beam_path.xml storages, including irradiation field quantity,
Irradiation field number, irradiation field machine hop count, irradiation field exposure dose.Current embodiment require that the single dose of extraction, accumulated dose are (single
Secondary dosage × number), plan normalizing target area, prescribed dose, normalizing isodose, number of nodes, irradiation field number, the letters such as machine hop count
Breath can be obtained by parsing this document.
S160281_C1_1_T2_plan.xml storage irradiation plan main informations.Current embodiment require that the tracking side of extraction
The information such as formula, collimator are obtained by parsing this document.
S160281_C1_1_T2_rtdose.dcm stores irradiated site target area and structure dosage information, is used for Program Assessment
Show DVH lines.
S160281_C1_1_T2_rtss.dcm storage organization location informations, are checked for doctor target area.
The target area of S160281_C1_1_T2_reports.xml storage irradiation plans, the summary letter of structural volume and dosage
Breath.Current embodiment require that the information such as the treatment plan number of extraction, target area title, volume, target area CI, nCI, HI, Coverage can
It is obtained by parsing this document, crisis organ intended dose, maximum dose point by the parameter in resolution file by can be calculated
It obtains.
Wherein, the data of rtdose files (dose point distribution file) storage include the space coordinate of each tissue points, CT
Value and dose value.Rtss files (organ sketches outline file) storage is sketching outline for each organ.Rtdose and rtss
The space coordinate of each tissue points inside file is one-to-one, is combined both, or in conjunction with CT images sequence
Row, so that it may which which organ space coordinate, CT values, dose value and the tissue points to obtain each tissue points belong to.
Further, if plan is to use two collimators, two independent pathway files can be generated, preserve two respectively
The path of a collimator.According to different collimators, beam_path is split into multiple files, irradiation field quantity, irradiation field are jumped
Number, number of nodes are all split in multiple beam_path files.That is, if any multiple collimators (Cone), then need to import
Multiple beam_path files, such as there are two collimator, then need to import S160281_C1_1_T2_beam_path1.xml and
Two files of S160281_C1_1_T2_beam_path2.xml.
3, Organ naming english abbreviation and number；
It is needed for the ease of data extraction and scientific research, Uniform Name can be carried out to organ, and one is imparted to each organ
A ID number.Specifically, (tumor target is refered in particular to, it is the organ of Target to need high-dose irradiation region, organ type for target area
Profile), then the sequence occurred hereof according to it is assigned a value of 101 respectively, 102,103......., and so on.For danger
And organ (refering in particular to human normal tissue, need to avoid dose irradiation region), number are as shown in table 1.For 8 Shell (physics
The virtual organ that teacher creates, convenient is that irradiated site gives different dosage, at most creates 8), then corresponding ID is respectively
301-308。
Table 1：
For example, in S160281_C1_1_T2_reports.xml files, target area is corresponding<TYPE>For Target, danger
And organ is corresponding<TYPE>For Critical, Shell is corresponding<TYPE>For Auto-shell.Therefore, first appearance<
TYPE>It is named as 101 for the profile of Target, second appearance<TYPE>102 are named as the profile of Target, with such
It pushes away；First appearance<TYPE>It is named as 201 for the profile of Critical, second appearance<TYPE>For Critical's
Profile is named as 202, and so on；First appearance<TYPE>301 are named as the profile of Auto-shell, second goes out
Existing<TYPE>302 are named as the profile of Auto-shell, and so on.
4, dose volume histogram (DVH) data formatization exports；
After obtaining reports files (planning report file), follow-up scientific research for convenience, by each organ DVH (dosage bodies
Product histogram) 100 data points be output in a txt file according to preset format, output format is as follows：
d0v0ID
……
d99v99ID
Wherein, diIndicate percent dose, viIndicate percent dose diCorresponding volume, ID indicate that the ID of each organ is compiled
Number.
5, Formatting Output tissue points space data
For the data of each tissue points in Rtdose files, also exported according to preset format, output format is such as
Under：
x y z CT Dose ID
Wherein, x, y, z respectively represents the space coordinate of each tissue points, and CT, Dose, ID respectively represent each tissue points
The ID number of CT values, dosage, the belonged to organ of each tissue points.
6, basic plan parameter is extracted；
It includes the following terms to plan basic parameter extraction：
(1) treatment plan number
(2) target area title, volume
(3) single dose, accumulated dose
(4) plan normalizing target area, prescribed dose, normalizing isodose
(5) target area CI, nCI, HI, Coverage
(6) number of nodes, irradiation field number, machine hop count
(7) trace mode
(8) collimator
Irradiation field path file is parsed, the agent such as single dose, accumulated dose, plan normalizing target area, prescribed dose, normalizing are obtained
Measure line, number of nodes, irradiation field number, machine hop count；
Project documentation is parsed, trace mode and collimator are obtained；
Planning report file is parsed, the enterprise number that obtains medical treatment, target area title, volume, CI (conformal index), nCI are (new conformal
Index), HI (evenness index), Coverage (target coverage).
7, jeopardize organ exposure dose and volume calculates
For jeopardizing the assessment of organ, reported with reference to AAPM TG101.
(1) plan maximum dose point：For the maximum dose point of plan, is reported with reference to AAPM TG101, be by DVH upper volumes
Corresponding dosage is as the maximum dose point of plan when 0.035cc.But the DVH of TPS outputs only has 100 discrete points, because
This needs finds two points nearest at left and right sides of distance 0.035cc, then utilizes once linear interpolation, can obtain
The corresponding dosage of 0.035cc.
(2) dosis tolerata：Once linear interpolation is carried out using method identical with the maximum dose point of the plan that obtains, is provided
Dosage corresponding to volume.
(3) parallel organ protective product：Parallel organ is needed to assess protection volume.It is for 5 livers with gradation
Example, it is desirable that the volume of the liver of the dose irradiation less than 21Gy should be more than 700cc, and the total volume for reading liver first is VTotal,
The corresponding volumes of the upper 21Gy of DVH are VRadio, then volume V is protectedProtect=VTotal-VRadio, finally in the single above planned value one of plan
Column shows VProtect。
(4) prostate cancer assesses template：Since the assessment template of prostate cancer is more special, formulated by investigating document
Assessment template as shown in Table 2.
Table 2：
Embodiment three
The present embodiment is a kind of computer readable storage medium of corresponding above-described embodiment, is stored thereon with computer journey
Sequence realizes following steps when described program is executed by processor：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field
Path file, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
Further, described according to the dose volume histogram, obtain the exposure dose information and volume for jeopardizing organ
Information is specially：
The corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, it is maximum as plan
Dose point；
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
Obtain the total volume of parallel organ；
The corresponding volume of preset dose is obtained in the dose volume histogram of parallel organ, as irradiated volume；
The difference for calculating the total volume and the irradiated volume obtains the protection volume of the parallel organ.
Further, the maximum dose point of the plan and dosis tolerata are obtained by linear interpolation.
Before obtaining treatment plan file in the knife radiation therapeutic planning system from ejected wave, further comprise：
It according to the radiotherapy number of patient, the course for the treatment of number, splits enterprise number and splits quota, treatment plan file is ordered
Name.
Further, treatment plan file is obtained in the knife radiation therapeutic planning system from ejected wave is specially：
According to the title for the treatment of plan file, corresponding treatment plan text is obtained from ejected wave knife radiation therapeutic planning system
Part.
Further, further include：
Each organ and a unique identifier are associated respectively.
Further, the treatment plan file further includes that dose point distribution file and organ sketch outline file；Also wrap
It includes：
File is sketched outline according to the dose point distribution file and organ, obtains tissue points information, the tissue points letter
Breath includes the unique identifier of space coordinate, CT values, dose value and affiliated organ；
The tissue points information is exported according to preset format.
In conclusion a kind of ejected wave knife treatment plan parameters extraction method provided by the invention and computer-readable depositing
Storage media is convenient for data management by being named according to unified naming rule to treatment plan file；It is defeated by formatting
Go out DVH data and voxel point data, data structure is more complicated in solution treatment plan file, is not easy at clinical research data
The problem of reason, exports data convenient for physics teacher or doctor, then needs to carry out mass processing according to respective；By obtaining automatically
Relevant treatment plan file is taken, and parses required basic plan parameter from treatment plan file automatically, is passed through simultaneously
Acquired dose volume histogram calculates the exposure dose information and volume information for jeopardizing organ, substantially increases clinic
The treatment effeciency and accuracy of data.The present invention is improved by obtaining treatment plan file automatically and carrying out analytical Calculation automatically
Ensure the accuracy and unified management of data while working efficiency, and physics teacher's workload can be mitigated.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright specification and accompanying drawing content are applied directly or indirectly in relevant technical field, include similarly
In the scope of patent protection of the present invention.
Claims (10)
1. a kind of ejected wave knife treatment plan parameters extraction method, which is characterized in that including：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field path
File, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
2. ejected wave knife treatment plan parameters extraction method according to claim 1, which is characterized in that described according to institute
Dose volume histogram is stated, the exposure dose information for jeopardizing organ is obtained and volume information is specially：
The corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, as plan maximum point agent
Amount；
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
Obtain the total volume of parallel organ；
The corresponding volume of preset dose is obtained in the dose volume histogram of parallel organ, as irradiated volume；
The difference for calculating the total volume and the irradiated volume obtains the protection volume of the parallel organ.
3. ejected wave knife treatment plan parameters extraction method according to claim 2, which is characterized in that in linear
The method of inserting obtains the maximum dose point of the plan and dosis tolerata.
4. ejected wave knife treatment plan parameters extraction method according to claim 1, which is characterized in that described from ejected wave
Before obtaining treatment plan file in knife radiation therapeutic planning system, further comprise：
It according to the radiotherapy number of patient, the course for the treatment of number, splits enterprise number and splits quota, treatment plan file is named.
5. ejected wave knife treatment plan parameters extraction method according to claim 4, which is characterized in that described from ejected wave
Treatment plan file is obtained in knife radiation therapeutic planning system is specially：
According to the title for the treatment of plan file, corresponding treatment plan file is obtained from ejected wave knife radiation therapeutic planning system.
6. ejected wave knife treatment plan parameters extraction method according to claim 1, which is characterized in that further include：
Each organ and a unique identifier are associated respectively.
7. ejected wave knife treatment plan parameters extraction method according to claim 1, which is characterized in that the treatment meter
It further includes that dose point distribution file and organ sketch outline file to draw file；
Further include：
File is sketched outline according to the dose point distribution file and organ, obtains tissue points information, the tissue points packet
Include the unique identifier of space coordinate, CT values, dose value and affiliated organ；
The tissue points information is exported according to preset format.
8. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that described program is by processor
Following steps are realized when execution：
Treatment plan file is obtained from ejected wave knife radiation therapeutic planning system, the treatment plan file includes irradiation field path
File, project documentation and planning report file；
According to the irradiation field path file, project documentation and planning report file, basic plan parameter is obtained；
The dose volume histogram of each organ is obtained from the planning report file；
According to the dose volume histogram, the exposure dose information and volume information for jeopardizing organ are obtained.
9. computer readable storage medium according to claim 8, which is characterized in that described straight according to the dose volume
Fang Tu, obtains the exposure dose information for jeopardizing organ and volume information is specially：
The corresponding dosage of preset first volume is obtained in the dose volume histogram for jeopardizing organ, as plan maximum point agent
Amount；
The corresponding dosage of preset second volume is obtained in the dose volume histogram of normal organ, as dosis tolerata；
Obtain the total volume of parallel organ；
The corresponding volume of preset dose is obtained in the dose volume histogram of parallel organ, as irradiated volume；
The difference for calculating the total volume and the irradiated volume obtains the protection volume of the parallel organ.
10. computer readable storage medium according to claim 9, which is characterized in that obtain institute by linear interpolation
State the maximum dose point of plan and dosis tolerata.
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Citations (2)
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| US20110285716A1 (en) * | 2010-01-06 | 2011-11-24 | Jimm Grimm | Evaluation of Radiation Dose Tolerance Limits |
| CN103070698A (en) * | 2013-01-31 | 2013-05-01 | 罗广文 | System and method for generating isocenter laser parameter in radiotherapy |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110285716A1 (en) * | 2010-01-06 | 2011-11-24 | Jimm Grimm | Evaluation of Radiation Dose Tolerance Limits |
| CN103070698A (en) * | 2013-01-31 | 2013-05-01 | 罗广文 | System and method for generating isocenter laser parameter in radiotherapy |
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