Dosimetric verification of the intensity modulated radiation therapy.
- Author:
Yuhai ZHANG
1
;
Yang GAO
Author Information
- Publication Type:Journal Article
- MeSH: Radiometry; methods; Radiotherapy Dosage; Radiotherapy, Intensity-Modulated; methods
- From: Chinese Journal of Medical Instrumentation 2010;34(3):218-223
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo research the method of dosimetric verification of the intensity modulated radiation therapy (IMRT).
METHODSThe IMRT treatment plans were designed by Eclipse TPS and were implemented in Varian ClinacIX LA with 6MV X-ray. The absolute point doses were measured using a PTW 0.6 cc ion chamber with UNIDOS E dosimeter and the planes dose distributions were measured using PTW 2D-Array ion chamber in the phantom.
RESULTSThe error between the measured dose and calculated dose in the interesting points was less than 3%. The points passed ratio was more than 90% in gamma analysis method (3 mm 13%) about the plane dose distribution verification.
CONCLUSIONThe method of dosimetric verification of IMRT is reliable and efficient in the implementation.
