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Use of an electron spoiler for radiation treatment of surface skin diseases
Hernández, V; Sánchez-Reyes, A; Badal, A; Vila, A; Mur, E; Pedro, A; Sanchiz, F.
Afiliação
  • Hernández, V; Hospital Universitari Sant Joan de Reus. Tarragona. Spain
  • Sánchez-Reyes, A; Hospital Plató. Barcelona. Spain
  • Badal, A; Universitat Politécnica de Catalunya. Barcelona. Spain
  • Vila, A; Hospital Plató. Barcelona. Spain
  • Mur, E; Hospital Universitari Sant Joan de Reus. Tarragona. Spain
  • Pedro, A; Hospital Plató. Barcelona. Spain
  • Sanchiz, F; s.af
Clin. transl. oncol. (Print) ; 12(5): 374-380, mayo 2010. ilus
Article em En | IBECS | ID: ibc-124084
Biblioteca responsável: ES1.1
Localização: BNCS
ABSTRACT
OBJECTIVES: Low-energy electron beams are characterised by low surface doses with a pronounced dose build-up and penetration of several centimetres, but often a higher surface dose and a lower penetration range is desired. The purpose of this study was to investigate the use of an electron spoiler to modify these beams for treating surface skin diseases and evaluate the feasibility of this method. MATERIALS AND METHODS: An aluminium foil 4-mm thick covering the end of the electron applicator was used as a spoiler for a 6 MeV electron beam. The dosimetric characteristics of this beam were measured, and Monte Carlo simulations were performed. RESULTS: The spoiler reduced the practical range and increased surface and build-up doses, but it also significantly broadened the penumbra and increased peripheral doses. Nevertheless, the beam was clinically acceptable when skin collimation with lead was employed. Monte Carlo simulations agreed well with all the experimental measurements. CONCLUSIONS: The feasibility of using a low-energy electron beam with a spoiler for treating surface skin diseases was demonstrated. The method is hygienic and avoids some of the disadvantages associated with the bolus technique, but it is valid only for flat surfaces and perpendicular incidence. As a consequence, it can be an alternative to bolus and other reported methods in certain cases, especially when a particular sterility assurance level is required (AU)
Assuntos
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Coleções: 06-national / ES Base de dados: IBECS Assunto principal: Radioterapia / Dermatopatias Tipo de estudo: Evaluation_studies / Prognostic_studies Limite: Female / Humans / Male Idioma: En Revista: Clin. transl. oncol. (Print) Ano de publicação: 2010 Tipo de documento: Article
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Coleções: 06-national / ES Base de dados: IBECS Assunto principal: Radioterapia / Dermatopatias Tipo de estudo: Evaluation_studies / Prognostic_studies Limite: Female / Humans / Male Idioma: En Revista: Clin. transl. oncol. (Print) Ano de publicação: 2010 Tipo de documento: Article