A tool to include gamma analysis software into a quality assurance program
Data(s) |
01/03/2016
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Resumo |
<p>PURPOSE: To provide a tool to enable gamma analysis software algorithms to be included in a quality assurance (QA) program.</p><p>METHODS: Four image sets were created comprising two geometric images to independently test the distance to agreement (DTA) and dose difference (DD) elements of the gamma algorithm, a clinical step and shoot IMRT field and a clinical VMAT arc. The images were analysed using global and local gamma analysis with 2 in-house and 8 commercially available software encompassing 15 software versions. The effect of image resolution on gamma pass rates was also investigated.</p><p>RESULTS: All but one software accurately calculated the gamma passing rate for the geometric images. Variation in global gamma passing rates of 1% at 3%/3mm and over 2% at 1%/1mm was measured between software and software versions with analysis of appropriately sampled images.</p><p>CONCLUSION: This study provides a suite of test images and the gamma pass rates achieved for a selection of commercially available software. This image suite will enable validation of gamma analysis software within a QA program and provide a frame of reference by which to compare results reported in the literature from various manufacturers and software versions.</p> |
Identificador | |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Agnew , C E & McGarry , C K 2016 , ' A tool to include gamma analysis software into a quality assurance program ' Radiotherapy and Oncology , vol 118 , no. 3 , pp. 568-73 . DOI: 10.1016/j.radonc.2015.11.034 |
Tipo |
article |