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http://dx.doi.org/10.14316/pmp.2014.25.4.281

Isocenter Check and QA of Tactic Radiosurgery Devices Using EPID  

Shin, Kyo Chul (Department of Radiation Oncology, Dankook University Hospital)
Choi, Sang Gyu (Department of Radiation Oncology, Dankook University Hospital)
Kim, Jung Kee (Research Center, Dongnam Institute of Radiological and Medical Sciences)
Jeong, Dong Hyeok (Research Center, Dongnam Institute of Radiological and Medical Sciences)
Publication Information
Progress in Medical Physics / v.25, no.4, 2014 , pp. 281-287 More about this Journal
Abstract
The Winston Lutz test, which checks the accuracy of the isocenter for stereotactic radiosurgery (SRS), was performed with the commercial electronic portal imaging device (EPID). The usual Winston Lutz test with film was also performed for comparison with the test with EPID. The maximum difference in isocenter between the two methods was 0.32 mm. The Winston Lutz test using EPID is practical as it can reduce time and avoid human errors compared to the test with film.
Keywords
SRS; EPID; Winston Lutz Test; Quality assurance;
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