Monte Carlo and experimental small-field dosimetry applied to spatially fractionated synchrotron radiotherapy techniques

Two innovative radiotherapy (RT) approaches are under development at the ID17 Biomedical Beamline of the European Synchrotron Radiation Facility (ESRF): microbeam radiation therapy (MRT) and minibeam radiation therapy (MBRT). The two main distinct characteristics with respect to conventional RT are...

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Detalhes bibliográficos
Autor: Martínez Rovira, Immaculada
Tipo de documento: tese
Estado:Versão publicada
Data de publicação:2012
País:España
Recursos:CBUC, CESCA
Repositório:TDR. Tesis Doctorales en Red
OAI Identifier:oai:www.tdx.cat:10803/81470
Acesso em linha:http://hdl.handle.net/10803/81470
https://dx.doi.org/10.5821/dissertation-2117-94591
Access Level:Acceso aberto
Palavra-chave:microbeam radiation therapy
minibeam radiation therapy
small-field dosimetry
Monte Carlo simulation
treatment planning system
dosimetry protocols
clinical trials
synchrotron radiation
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Descrição
Resumo:Two innovative radiotherapy (RT) approaches are under development at the ID17 Biomedical Beamline of the European Synchrotron Radiation Facility (ESRF): microbeam radiation therapy (MRT) and minibeam radiation therapy (MBRT). The two main distinct characteristics with respect to conventional RT are the use of submillimetric field sizes and spatial fractionation of the dose. This PhD work deals with different features related to small-field dosimetry involved in these techniques. Monte Carlo (MC) calculations and several experimental methods are used with this aim in mind. The core of this PhD Thesis consisted of the development and benchmarking of an MC-based computation engine for a treatment planning system devoted to MRT within the framework of the preparation of forthcoming MRT clinical trials. Additional achievements were the definition of safe MRT irradiation protocols, the assessment of scatter factors in MRT, the further improvement of the MRT therapeutic index by injecting a contrast agent into the tumour and the definition of a dosimetry protocol for preclinical trials in MBRT.