Quality assurance of stereotactic radiotherapy in head and neck cancer
- VernacularTitle:头颈部肿瘤立体定向放射治疗中的质量保证
- Author:
Bing WU
;
Li LI
;
Li YU
- Publication Type:Journal Article
- Keywords:
head and neck cancers;
quality assurance;
stereo tactic radiotherapy
- From:
Chinese Medical Equipment Journal
2004;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To introduce the methods for quality assurance of stereotactic radiotherapy in head and neck cancers.Methods Firstly,thirty cases were randomly selected.Secondly,patients were set up with Topsland fixtures,and their heads & necks were fixed with plastic masks,on which windows were open and the signs of reposition were marked.Thirdly,the treatment plan was designed by GE-helical CT-scan and Topsland plan system.Finally,after certification eligibility,the treatment plan was performed to record the parameters of anterior-posterior and analysis errors of setting up.Results: The testing results revealed that the position error was no more than 2mm.Conclusion: QA is a very important measure to guarantee the precision of stereoscopic directional radiotherapy.Only when the QA measure has been strictly carried out,the precise and satisfactory effect can be obtained.
