18 March 2008 Digital phantoms for the evaluation of a software used for an automatic analysis of the Winston-Lutz test in image guided radiation therapy
Author Affiliations +
Abstract
Accurate isocentre positioning of the treatment machine is essential for the radiation therapy process, especially in stereotactic radio surgery and in image guided radiation therapy. We present in this paper a new method to evaluate a software which is used to perform an automatic analysis of the Winston-Lutz test used in order to determine position and size of the isocentre. The method consists of developing digital phantoms that simulate mechanical distortions of the treatment machine as well as misalignments of the positioning laser targeting the isocentre. These Digital Test Objects (DTOs) offer a detailed and profound evaluation of the software and allow determining necessary adjustments which lead to high precision and therefore contributes to a better treatment targeting.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tarraf Torfeh, Tarraf Torfeh, Stéphane Beaumont, Stéphane Beaumont, David Bonnet, David Bonnet, Yves Barbotteau, Yves Barbotteau, Jean-Pierre Guédon, Jean-Pierre Guédon, Nicolas Normand, Nicolas Normand, Eloïse Denis, Eloïse Denis, Pascal Fenoglietto, Pascal Fenoglietto, Norbert Ailleres, Norbert Ailleres, } "Digital phantoms for the evaluation of a software used for an automatic analysis of the Winston-Lutz test in image guided radiation therapy", Proc. SPIE 6913, Medical Imaging 2008: Physics of Medical Imaging, 69133F (18 March 2008); doi: 10.1117/12.768668; https://doi.org/10.1117/12.768668
PROCEEDINGS
11 PAGES


SHARE
Back to Top