A tool to include gamma analysis software into a quality assurance program.
Radiother Oncol
; 118(3): 568-73, 2016 Mar.
Article
em En
| MEDLINE
| ID: mdl-26928005
ABSTRACT
PURPOSE:
To provide a tool to enable gamma analysis software algorithms to be included in a quality assurance (QA) program.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.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.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.Palavras-chave
Texto completo:
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Bases de dados:
MEDLINE
Assunto principal:
Neoplasias da Próstata
/
Algoritmos
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Planejamento da Radioterapia Assistida por Computador
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Software
Limite:
Humans
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Male
Idioma:
En
Revista:
Radiother Oncol
Ano de publicação:
2016
Tipo de documento:
Article