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Communication Dans Un Congrès Année : 2008

Digital phantoms for the evaluation of a software used for an automatic analysis of the Winston-Lutz test in image guided radiation therapy

Résumé

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-Lutz1, 2 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.
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Dates et versions

hal-00326648 , version 1 (04-10-2008)

Identifiants

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Tarraf Torfeh, Stéphane Beaumont, David Bonnet, Yves Barbotteau, Jean-Pierre Guédon, et al.. Digital phantoms for the evaluation of a software used for an automatic analysis of the Winston-Lutz test in image guided radiation therapy. Medical Imaging 2008: Physics of Medical Imaging, Feb 2008, San Diego, CA, USA, United States. pp.69133F-69133F-11, ⟨10.1117/12.768668⟩. ⟨hal-00326648⟩
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