Monte Carlo dosimetry for synchrotron stereotactic radiotherapy of brain tumours.

Caroline Boudou 1 Jacques Balosso 1, 2 François Estève 1, 3 Hélène Elleaume 1
1 RSRM - Rayonnement Synchrotron et Recherche Medicale
2 Département de cancérologie et d'hématologie
3 IRM - Service d'Imagerie par Résonance Magnétique
Abstract : A radiation dose enhancement can be obtained in brain tumours after infusion of an iodinated contrast agent and irradiation with kilovoltage x-rays in tomography mode. The aim of this study was to assess dosimetric properties of the synchrotron stereotactic radiotherapy technique applied to humans (SSR) for preparing clinical trials. We designed an interface for dose computation based on a Monte Carlo code (MCNPX). A patient head was constructed from computed tomography (CT) data and a tumour volume was modelled. Dose distributions were calculated in SSR configuration for various energy beam and iodine content in the target volume. From the calculations, it appears that the iodine-filled target (10 mg ml(-1)) can be efficiently irradiated by a monochromatic beam of energy ranging from 50 to 85 keV. This paper demonstrates the feasibility of stereotactic radiotherapy for treating deep-seated brain tumours with monoenergetic x-rays from a synchrotron.
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Article dans une revue
Physics in Medicine and Biology, IOP Publishing, 2005, 50 (20), pp.4841-51. 〈10.1088/0031-9155/50/20/007〉
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http://www.hal.inserm.fr/inserm-00388924
Contributeur : Raphael Serduc <>
Soumis le : mercredi 27 mai 2009 - 17:09:04
Dernière modification le : vendredi 29 mai 2009 - 15:50:44

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Caroline Boudou, Jacques Balosso, François Estève, Hélène Elleaume. Monte Carlo dosimetry for synchrotron stereotactic radiotherapy of brain tumours.. Physics in Medicine and Biology, IOP Publishing, 2005, 50 (20), pp.4841-51. 〈10.1088/0031-9155/50/20/007〉. 〈inserm-00388924〉

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