L'utilisation de marges personnalisées dans le traitement du cancer du poumon en radiothérapie

Authors: Germain, François
Advisor: Beaulieu, Luc
Abstract: Individualized margins in radiotherapy planning of lung cancer: analysis of physiological movements and their dosimetric impacts OBJECTIVE: This study is an analysis of physiological movements and their dosimetric impacts when a single thoracic CT-scan is used for treatment planning purposes in radiation oncology. METHODS: This is a study of 15 patients. Three-dimensional conformal radiation therapy was (3D-CRT) was used. A reference clinical plan was constructed and compared with plans using individualized margins (obtained by using five CT-scans). Volumetric and dosimetric analyses were made for each. RESULTS: The total volume occupied by GTV progressed quickly with the fusion of CT-scans. For a similar coverage, target volume was smaller and lung irradiation was slightly decreased. CONCLUSIONS: Even if the individualized margin was used, it produced a limited clinical advantage. All techniques that increase total volume with an aim to include more movements should come to similar conclusions.
Document Type: Mémoire de maîtrise
Issue Date: 2005
Open Access Date: 12 April 2018
Permalink: http://hdl.handle.net/20.500.11794/19429
Grantor: Université Laval
Collection:Thèses et mémoires

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