Evaluation of Mapcheck for IMRT Quality Assurance
- VernacularTitle:Mapcheck在调强放疗验证中的应用
- Author:
Cuie WU
;
Liming XU
- Publication Type:Journal Article
- Keywords:
intensity modulated radiation therapy;
Mapcheck;
QA(quality assurance)
- From:
Chinese Medical Equipment Journal
2004;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective The goal of this work is to evaluate the dosimetric characteristics of a new 2D diode array (Mapcheck from Sun Nuclear Corporation,Melbourne,Florida) and assess the role it can play in routine IMRT QA. Methods Fundamental properties of the Mapcheck such as reproducibility and linearity were studied for high-energy photon beams. Clinical performance of the MapCheck for relative and absolute dosimetry was demonstrated with head and neck IMRT plans,and compared with plan dose distribution. Absolute dose measured by Ion chamber and Mapcheck are compared with the one given in TPS. Results The Mapcheck offers the dosimetric characteristics required for performing both relative and absolute dose measurements. Conclusion Mapcheck can provide the verification of absolute dose and relative dose. Its use in the clinic can simplify and reduce the IMRT QA workload.
