Determination of the electronic portal imaging device pixel-sensitivity-map for quality assurance applications. Part 1: Comparison of methods.
Sign Up to like & getrecommendations! Published in 2022 at "Journal of applied clinical medical physics"
DOI: 10.1002/acm2.13603
Abstract: PURPOSE Calibration of a radiotherapy electronic portal imaging device (EPID) using the pixel-sensitivity-map (PSM) in place of the flood field correction improves the utility of the EPID for quality assurance applications. Multiple methods are available… read more here.
Keywords: imaging device; portal imaging; method; sensitivity map ... See more keywords
Assessing the accuracy of electronic portal imaging device (EPID)-based dosimetry: I. Quantities influencing long-term stability.
Sign Up to like & getrecommendations! Published in 2021 at "Medical physics"
DOI: 10.1002/mp.15434
Abstract: PURPOSE The aim of this study is to reduce the uncertainty associated with determining dose-to-water using an amorphous silicon electronic portal imaging detector (EPID) under reference conditions by identifying and accounting for operational and environmental… read more here.
Keywords: portal imaging; long term; electronic portal; term stability ... See more keywords
Setup in a clinical workflow and impact on radiotherapy routine of an in vivo dosimetry procedure with an electronic portal imaging device
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DOI: 10.1371/journal.pone.0192686
Abstract: High conformal techniques such as intensity-modulated radiation therapy and volumetric-modulated arc therapy are widely used in overloaded radiotherapy departments. In vivo dosimetric screening is essential in this environment to avoid important dosimetric errors. This work… read more here.
Keywords: imaging device; radiotherapy; procedure; dosimetry ... See more keywords