CN103761441A - Verification method and device for radiotherapy plan - Google Patents
Verification method and device for radiotherapy plan Download PDFInfo
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- CN103761441A CN103761441A CN201410038961.1A CN201410038961A CN103761441A CN 103761441 A CN103761441 A CN 103761441A CN 201410038961 A CN201410038961 A CN 201410038961A CN 103761441 A CN103761441 A CN 103761441A
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Abstract
The invention discloses a verification method for a radiotherapy plan. The method includes the first step that a TPS generates an initial radiotherapy plan and sends the initial radiotherapy plan to an OIS and a plan comparison and verification system; the second step that the OIS edits the initial radiotherapy plan and sends the edited radiotherapy plan to the plan comparison and verification system; the third step that the plan comparison and verification system carries out verification on the initial radiotherapy plan and the edited radiotherapy plan and informs the OIS to send the edited radiotherapy plan to a radiotherapy machine if the initial radiotherapy plan and the edited radiotherapy plan pass the verification. The invention further discloses a verification device for the radiotherapy plan. The verification method and device for the radiotherapy plan have the advantages that through automatic verification on the edited radiotherapy plan which is actually applied to treatment and the initial radiotherapy plan, errors possibly caused when the OIS carries out edition in an existing radiotherapy process are eliminated, it can be guaranteed that the treatment finally applied to patients through the radiotherapy machine strictly accords with preset parameters, and therefore medical accidents caused by the parameter errors can be effectively prevented.
Description
Technical field
The present invention relates to medical field, relate in particular to a kind of verification method and device of radiotherapy planning.
Background technology
Radiotherapy treatment planning system (be called for short TPS), is a kind of Medical Devices, by the radiation therapy that comes simulation game to implement to radioactive source and patient's modeling.TPS adopts one or more algorithms that the systemic dosage of patient body is distributed and calculated, and result of calculation can be for radiotherapy treatment planning maker.Treatment plan is the requisite means of radiation therapy quality control and assurance, and the design for the treatment of plan is the important step of radiation therapy process, need on TPS, carry out.TPS, first to radioactive source modeling, requires to set up corresponding line and parameter database at installation phase according to model.When to patient's planned design, first pass through medium or network to TPS input picture, thereby TPS acquisition is carried out the reconstruction of density field about patient's pathology and the information of vitals and tissue, completes the modeling to patient.Doctor and physics personnel combined treatment machine (medical accelerator, cobalt machine etc.) parameter designing treatment plan, the automatic majorization function providing by TPS and treatment plan analog result, adopt one or more evaluation methods to evaluate the plan having designed and after repeatedly revising and improving, obtain feasible clinical treatment in detail.Representational product comprises Pinnacle3, Eclipse, Monaco and Xio etc.
Tumor information management system (being called for short OIS) is the software for patient is carried out to unified management in all relevant informations of tumor therapeutic procedure.
Because TPS and OIS are not homologous rays, not generally the exploitation of same manufacturer, between two systems, can only carry out data interaction by the interface of standard, conventional is DICOM RT standard at present.The treatment plan that OIS can generate TPS is carried out artificial import operation, and doctor can modify to original parameter and additions and deletions operation after importing, finally before treatment, these parameters is sent to therapy apparatus again.But OIS is manually importing, is mating and during the operation such as modification, having possibility making a mistake, the radiation parameters while making to implement treatment from TPS originally, estimate different, this can cause serious consequence, causes the generation of malpractice.
Summary of the invention
The technical matters that the present invention mainly solves is to provide a kind of verification method and device of radiotherapy planning.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of verification method of radiotherapy planning is provided, comprises step:
S1, TPS generate initial radiotherapy plan and described initial radiotherapy plan are sent to OIS and plan contrast verification system;
S2, OIS edit initial radiotherapy plan, and the radiotherapy planning after editor is sent to plan contrast verification system;
S3, the radiotherapy planning of plan contrast verification system to described initial radiotherapy plan and after editing are verified, and after being verified, notice OIS is sent to therapy apparatus by the radiotherapy planning after editor.
Another technical solution used in the present invention is: a kind of demo plant of radiotherapy planning is provided, comprises:
TPS, for generating initial radiotherapy plan and described initial radiotherapy plan being sent to OIS and plan contrast verification system;
OIS, for initial radiotherapy plan is edited, and sends it to plan contrast verification system after the radiotherapy planning after preserving editor;
Plan contrast verification system, for the radiotherapy planning after described initial radiotherapy plan and editor is verified, and after being verified, notice OIS is sent to therapy apparatus by the radiotherapy planning after editor.
The invention has the beneficial effects as follows: by the present invention, to real, for the radiotherapy planning after the editor who implements to treat and the initial initial radiotherapy plan generating of TPS, carry out automatic Verification, eliminated in existing radiotherapy flow process the error that may introduce when OIS edits and imports, guarantee that finally by therapy apparatus, being implemented on patient's treatment with it strictly follows the parameter pre-establishing, effectively prevent that parameter error from causing malpractice.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of an embodiment of the demo plant of radiotherapy planning of the present invention;
Fig. 2 is the main flowchart of an embodiment of the verification method of radiotherapy planning of the present invention.
Main element symbol description:
10, TPS; 20, OIS; 30, contrast verification system; 100, demo plant.
Embodiment
By describing technology contents of the present invention, structural attitude in detail, being realized object and effect, below in conjunction with embodiment and coordinate accompanying drawing to be explained in detail.
Refer to Fig. 1, the demo plant 100 that present embodiment is a kind of radiotherapy planning, comprises TPS10, OIS20 and plan contrast verification system 30.
Described TPS10 is used for generating initial radiotherapy plan and described initial radiotherapy plan is sent to OIS20 and plan contrast verification system 30.
Described OIS20 is used for initial radiotherapy plan to edit, and after the radiotherapy planning after preserving editor, sends it to plan contrast verification system 30; Described editor comprises importing, modification and the audit to initial radiotherapy plan.
Described plan contrast verification system 30 is for the radiotherapy planning after described initial radiotherapy plan and editor is verified, and after being verified, notice OIS20 is sent to therapy apparatus by the radiotherapy planning after editor.
Particularly, plan contrast verification system 30 comprises dispensing unit, the first judging unit, the second judging unit and the 3rd judging unit.
Described dispensing unit is for configuring the judgment value of required Verification Project and Verification Project.
Described the first judging unit is for judging whether the Verification Project of the radiotherapy planning after initial radiotherapy plan and editor is numeric type, if so, notifies the second judging unit executable operations, if not, notifies the 3rd judging unit executable operations.
Described the second judging unit is for judging whether the difference of the same numeric type Verification Project of the radiotherapy planning after initial radiotherapy plan and editor is less than described judgment value, and if so, decision verification passes through, and if not, decision verification is failed.
Whether described the 3rd judging unit is identical for the character value of the same nonumeric type Verification Project of the radiotherapy planning after judging initial radiotherapy plan and editing, and if so, decision verification passes through, if not, and decision verification failure.
Preferably, after decision verification failure, in plan contrast verification system 30, also comprise that output unit and the 4th judging unit are for carrying out subsequent operation.
Described output unit is judged to be authentication failed Verification Project for exporting carries out artificial nucleus couple.
Described the 4th judging unit, for when receiving the feedback signal of artificial input, judges the type of feedback signal, if reception is the first feedback signal, decision verification passes through, if reception is the second feedback signal, and decision verification failure.
Further, in another preferred embodiment of the present invention, described plan contrast verification system also checks for the launched field parameter that comprises of radiotherapy planning to after initial radiotherapy plan and editor, and the unit of carrying out this inspection comprises inspection unit, the first identify unit, the second identify unit and Tip element.
Described inspection unit is for take initial radiotherapy plan each launched field parameter as benchmark traversal radiotherapy planning, use BeamName and BeamNumber to check in the radiotherapy planning of each launched field parameter after editor whether exist, if do not exist, use folding and the jumping figure of first Ziye parameter of launched field parameter to enter quadratic search; If there is the launched field parameter that all can not find occurrence in twice inspection, by operator, specify the coupling of launched field parameter associated.
Described the first identify unit is used for checking whether the launched field parameter of the radiotherapy planning after editor all has the respective items in initial radiotherapy plan, and is the new new-added item in the radiotherapy planning after editing by the launched field parameter identification without respective items.
Described the second identify unit is used for checking whether the launched field parameter of initial radiotherapy plan all has the respective items in the radiotherapy planning after editor, and is deleted by the launched field parameter identification without respective items.
Described Tip element for will described new new-added item and deleted item be sent to and point out list to export with handled easily person to check.
Wherein, in above-mentioned preferred implementation, in the first identify unit and the second identify unit, also comprise the comparing unit for respective items is checked, described comparing unit is for take the quantity that the ControlPointIndex parameter of described initial radiotherapy plan is bench-marking ControlPoint; If have the ControlPoint having more in the radiotherapy planning after described editor, be designated new new-added item; If there is the ControlPoint of minimizing in the radiotherapy planning after described editor, be designated deleted.
Refer to Fig. 2, the verification method that present embodiment is a kind of radiotherapy planning, comprises step:
S1, TPS generate initial radiotherapy plan and described initial radiotherapy plan are sent to OIS and plan contrast verification system;
S2, OIS edit initial radiotherapy plan, and the radiotherapy planning after editor is sent to plan contrast verification system;
S3, the radiotherapy planning of plan contrast verification system to described initial radiotherapy plan and after editing are verified, and after being verified, notice OIS is sent to therapy apparatus by the radiotherapy planning after editor.
Wherein, described step S3 comprises step:
S31, configure the judgment value of required Verification Project and Verification Project;
Usually, Verification Project comprises the project in RT General Plan, RT Beams in dicom standard, RTFraction Scheme, RT Patient Setup, RT Tolerance Tables and RT Brachy Application Setups;
In general, mainly for following items, verify:
RT Plan Label in RT General Plan, RT Plan Name, Treatment Sites project;
Beam Number in RT Beams, Beam Name, Beam Type, Radiation Type, Wedge Number, Wedge Type, Wedge Angle, Wedge ID, Applicator ID, Applicator, Applicator Type, Accessory Code, Table Top Eccentric Angle, Table Top Eccentric Rotation Direction, Table Top Pitch Angle, Table Top Pitch Rotation Direction, Table Top Roll Angle, Table Top Vertical Position, Table Top Longitudinal Position, Table Top Lateral Position, Treatment Machine Name, Cumulative Meterset Weight, Nominal Beam Energy, Wedge Position, Leaf/Jaw Positions, Gantry Angle, Beam Limiting Device Angle, Patient Support Angle, Cumulative Meterset Weight project,
Number of Beams, Beam Dose in RT Fraction Scheme, Beam Meterset project;
Patient Position in RT Patient Setup, Patient Additional Position, SetupTechnique, Setup Device Sequence, Table Top Vertical Setup Displacement, TableTop Longitudinal Setup Displacement, Table Top Lateral Setup Displacement project;
S32, judge initial radiotherapy plan and editor after radiotherapy planning in Verification Project whether be numeric type, if so, perform step S33, if not, perform step S34;
S33, judge whether the absolute value of difference of the same numeric type Verification Project in the radiotherapy planning after initial radiotherapy plan and editor is less than described judgment value, and if so, decision verification passes through, if not, decision verification failure;
Wherein, this checking formula is: △=| Vsrc-Vdest|;
For example, the value that TPS generates may have a lot of decimals, value may be 42.32156987456, but OIS can block, it is 42.3 that value may be blocked, if the judgment value of configuration is 0.1, difference is 42.32156987456-42.3=0.02156987456 like this, 0.02156987456 is less than judgment value 0.1, and decision verification passes through;
S34, judge that whether the character value of same nonumeric type Verification Project in the radiotherapy planning after initial radiotherapy plan and editor is identical, if so, decision verification passes through, if not, and decision verification failure;
For example, when being rotated this Verification Project of direction, if the character value in initial radiotherapy plan is CW, the character value in the radiotherapy planning after editor is CCW, decision verification failure.
Preferably, after decision verification failure, also comprise following steps:
The Verification Project that S35, output are judged to be authentication failed carries out artificial nucleus couple;
S36, when receiving the feedback signal of artificial input, the type of judgement feedback signal, if what receive is the first feedback signal, decision verification passes through, if what receive is the second feedback signal, decision verification failure;
For example, when operator thinks that the error of Verification Project is insignificant, can this Verification Project be verified by inputting the first feedback signal.
Further, in another preferred embodiment of the present invention, " radiotherapy planning of plan contrast verification system to described initial radiotherapy plan and after editing verified " described in step S3 comprises the inspection of the launched field parameter to comprising in the radiotherapy planning after initial radiotherapy plan and editor, and this inspection comprises step:
S301, take initial radiotherapy plan as benchmark, each launched field parameter in traversal radiotherapy planning, use BeamName and BeamNumber to check in the radiotherapy planning of each launched field parameter after editor whether exist, if do not exist, use folding and the jumping figure of first Ziye parameter of launched field parameter to enter quadratic search; If there is the launched field parameter that all can not find occurrence in twice inspection, by operator, specify the coupling of launched field parameter associated;
Whether the launched field parameter in the radiotherapy planning after S302, inspection editor all has the respective items in initial radiotherapy plan, and the launched field parameter that sign does not have respective items is the new new-added item in the radiotherapy planning after editing;
Whether the launched field parameter in S303, inspection initial radiotherapy plan all has the respective items in the radiotherapy planning after editor, and the launched field parameter that sign does not have respective items is deleted;
S304, described new new-added item and deleted item are sent in prompting list and export with handled easily person and check.
Wherein, in step S302 and step S303, the inspection of respective items is specifically comprised to step:
The quantity that the ControlPointIndex parameter of described initial radiotherapy plan of take is bench-marking ControlPoint;
If have the ControlPoint having more in the radiotherapy planning after described editor, be designated new new-added item;
If there is the ControlPoint of minimizing in the radiotherapy planning after described editor, be designated deleted.
For example, in initial radiotherapy plan, comprise Beam1, Beam2, Beam3, Beam4, in the radiotherapy planning after editor, comprise Beam1, Beam2, Beam3, Beam5.Plan contrast verification system is in carrying out the process of checking, Beam1, Beam2, Beam3 can Auto-matchings, but for Beam4 and Beam5, there are two kinds of possibilities: after having deleted Beam4 in the radiotherapy planning after editor, increase Beam5, or the radiotherapy planning after editor has made Beam4 into Beam5.And the method providing according to present embodiment, plan contrast verification system can be designated deleted entry by Beam4, Beam5 is designated to new new-added item, and Beam4 and Beam5 output are checked for operator, so just can judge at a glance the difference between the radiotherapy planning after initial radiotherapy plan and editor.
The invention has the beneficial effects as follows: by the present invention, to real, for the radiotherapy planning after the editor who implements to treat and the initial initial radiotherapy plan generating of TPS, carry out automatic Verification, eliminated in existing radiotherapy flow process the error that may introduce when OIS edits and imports, guarantee that finally by therapy apparatus, being implemented on patient's treatment with it strictly follows the parameter pre-establishing, effectively prevent that parameter error from causing malpractice.In addition, when for the first time by the failure of plan contrast verification system decision verification, also the Verification Project that is verified failure can be exported, by doctor, carry out secondary judgement, if the numerical value of Verification Project or character value are really overproof, just decision verification failure, if doctor thinks actual numerical value or character value no problem, just can decision verification success, thus carry out follow-up treatment step, dual judgment mechanism like this, can eliminate the error existing in Verification Project completely.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a verification method for radiotherapy planning, is characterized in that, comprises step:
S1, TPS generate initial radiotherapy plan and described initial radiotherapy plan are sent to OIS and plan contrast verification system;
S2, OIS edit initial radiotherapy plan, and the radiotherapy planning after editor is sent to plan contrast verification system;
S3, the radiotherapy planning of plan contrast verification system to described initial radiotherapy plan and after editing are verified, and after being verified, notice OIS is sent to therapy apparatus by the radiotherapy planning after editor.
2. the verification method of radiotherapy planning according to claim 1, is characterized in that, described step S3 comprises step:
S31, configure the judgment value of required Verification Project and Verification Project;
S32, judge initial radiotherapy plan and editor after radiotherapy planning in Verification Project whether be numeric type, if so, perform step S33, if not, perform step S34;
S33, judge whether the absolute value of difference of the same numeric type Verification Project in the radiotherapy planning after initial radiotherapy plan and editor is less than described judgment value, and if so, decision verification passes through, if not, decision verification failure;
S34, judge that whether the character value of same nonumeric type Verification Project in the radiotherapy planning after initial radiotherapy plan and editor is identical, if so, decision verification passes through, if not, and decision verification failure.
3. the verification method of radiotherapy planning according to claim 2, is characterized in that, after decision verification failure, also comprises following steps:
The Verification Project that S35, output are judged to be authentication failed carries out artificial nucleus couple;
S36, when receiving the feedback signal of artificial input, the type of judgement feedback signal, if what receive is the first feedback signal, decision verification passes through, if what receive is the second feedback signal, decision verification failure.
4. the verification method of radiotherapy planning according to claim 1, it is characterized in that, " radiotherapy planning of plan contrast verification system to described initial radiotherapy plan and after editing verified " described in step S3 comprises the inspection of the launched field parameter to comprising in the radiotherapy planning after initial radiotherapy plan and editor, and this inspection comprises step:
S301, take initial radiotherapy plan as benchmark, each launched field parameter in traversal radiotherapy planning, use BeamName and BeamNumber to check in the radiotherapy planning of each launched field parameter after editor whether exist, if do not exist, use folding and the jumping figure of first Ziye parameter of launched field parameter to enter quadratic search; If there is the launched field parameter that all can not find occurrence in twice inspection, by operator, specify the coupling of launched field parameter associated;
Whether the launched field parameter in the radiotherapy planning after S302, inspection editor all has the respective items in initial radiotherapy plan, and the launched field parameter that sign does not have respective items is the new new-added item in the radiotherapy planning after editing;
Whether the launched field parameter in S303, inspection initial radiotherapy plan all has the respective items in the radiotherapy planning after editor, and the launched field parameter that sign does not have respective items is deleted;
S304, described new new-added item and deleted item are sent in prompting list and export with handled easily person and check.
5. the verification method of radiotherapy planning according to claim 4, is characterized in that, in step S302 and step S303, the inspection of respective items is specifically comprised to step:
The quantity that the ControlPointIndex parameter of described initial radiotherapy plan of take is bench-marking ControlPoint;
If have the ControlPoint having more in the radiotherapy planning after described editor, be designated new new-added item;
If there is the ControlPoint of minimizing in the radiotherapy planning after described editor, be designated deleted.
6. a demo plant for radiotherapy planning, is characterized in that, comprising:
TPS, for generating initial radiotherapy plan and described initial radiotherapy plan being sent to OIS and plan contrast verification system;
OIS, for initial radiotherapy plan is edited, and sends it to plan contrast verification system after the radiotherapy planning after preserving editor;
Plan contrast verification system, for the radiotherapy planning after described initial radiotherapy plan and editor is verified, and after being verified, notice OIS is sent to therapy apparatus by the radiotherapy planning after editor.
7. the demo plant of radiotherapy planning according to claim 6, is characterized in that, described plan contrast verification system specifically comprises:
Dispensing unit, for configuring the judgment value of required Verification Project and Verification Project;
The first judging unit, for judging whether the Verification Project of the radiotherapy planning after initial radiotherapy plan and editor is numeric type, if so, notifies the second judging unit executable operations, if not, notifies the 3rd judging unit executable operations;
The second judging unit, for judging whether the difference of the same numeric type Verification Project of the radiotherapy planning after initial radiotherapy plan and editor is less than described judgment value, and if so, decision verification passes through, if not, decision verification failure;
The 3rd judging unit, whether identical for judging the character value of same nonumeric type Verification Project of the radiotherapy planning after initial radiotherapy plan and editor, if so, decision verification passes through, if not, decision verification failure.
8. the demo plant of radiotherapy planning according to claim 7, is characterized in that, after decision verification failure, described plan contrast verification system also comprises that following unit is for carrying out subsequent operation:
Output unit, the Verification Project that is judged to be authentication failed for exporting carries out artificial nucleus couple;
The 4th judging unit, for when receiving the feedback signal of artificial input, the type of judgement feedback signal, if reception is the first feedback signal, decision verification passes through, if reception is the second feedback signal, decision verification failure.
9. the demo plant of radiotherapy planning according to claim 6, is characterized in that, described plan contrast verification system also checks for the launched field parameter that comprises of radiotherapy planning to after initial radiotherapy plan and editor, and the unit of carrying out this inspection comprises:
Inspection unit, for take initial radiotherapy plan each launched field parameter as benchmark traversal radiotherapy planning, use BeamName and BeamNumber to check in the radiotherapy planning of each launched field parameter after editor whether exist, if do not exist, use folding and the jumping figure of first Ziye parameter of launched field parameter to enter quadratic search; If there is the launched field parameter that all can not find occurrence in twice inspection, by operator, specify the coupling of launched field parameter associated;
The first identify unit for checking whether the launched field parameter of the radiotherapy planning after editor all has the respective items in initial radiotherapy plan, and is the new new-added item in the radiotherapy planning after editing by the launched field parameter identification without respective items;
The second identify unit for checking whether the launched field parameter of initial radiotherapy plan all has the respective items in the radiotherapy planning after editor, and is deleted by the launched field parameter identification without respective items;
Tip element, exports with handled easily person and checks for described new new-added item and deleted item being sent to prompting list.
10. the demo plant of radiotherapy planning according to claim 9, it is characterized in that, in described the first identify unit and the second identify unit, also comprise the comparing unit for respective items is checked, described comparing unit is for take the quantity that the ControlPointIndex parameter of described initial radiotherapy plan is bench-marking ControlPoint; If have the ControlPoint having more in the radiotherapy planning after described editor, be designated new new-added item; If there is the ControlPoint of minimizing in the radiotherapy planning after described editor, be designated deleted.
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