1. Dose verification of volumetric modulation arc therapy by using a NIPAM gel dosimeter combined with a parallel-beam optical computed tomography scanner
- Author
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Chin-Hsing Chen, Tung-Hao Chang, Yuan-Chun Lai, Chun-Hsu Yao, Yi-An Chen, Yuan-Jen Chang, and Min-Jia Tsai
- Subjects
Parallel beam ,Materials science ,Dosimeter ,business.industry ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Intensity-modulated radiation therapy ,010403 inorganic & nuclear chemistry ,01 natural sciences ,Pollution ,030218 nuclear medicine & medical imaging ,0104 chemical sciences ,Analytical Chemistry ,03 medical and health sciences ,0302 clinical medicine ,Nuclear Energy and Engineering ,Modulation ,Dose verification ,Computed tomography scanner ,Arc therapy ,Radiology, Nuclear Medicine and imaging ,Polymer gel ,Nuclear medicine ,business ,Spectroscopy - Abstract
Volumetric modulated arc therapy (VMAT) was developed to shorten treatment time and increase target conformance. However, a true three-dimensional (3D) gel dosimeter is needed for dose verification. In this study, two clinic cases were adopted: a simple case of lung cancer and a complex case of larynx cancer. For each clinic case, two treatment plans were generated for the same planning target volume using VMAT and intensity modulated radiation therapy calculation software packages. An N-isopropylacrylamide (NIPAM) polymer gel dosimeter was used for 3D dose verification. In addition, the dose characteristics of the NIPAM gel dosimeter were investigated for the two clinic cases.
- Published
- 2017
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