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Master's Dissertation
DOI
10.11606/D.85.2009.tde-23092011-155440
Document
Author
Full name
Dalila Luzia Toreti
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2009
Supervisor
Committee
Rodrigues, Laura Natal (President)
Caldas, Linda Viola Ehlin
Carvalho, Heloisa de Andrade
Title in Portuguese
Aceite, comissionamento e controle de qualidade em radiocirurgia
Keywords in Portuguese
comissionamento
controle de qualidade
radiocirurgia
Abstract in Portuguese
A Radiocirurgia Estereotática é a técnica de tratamento que usa feixes estreitos de radiação focalizados com grande exatidão em uma lesão pequena. A introdução dos colimadores micro multi-lâminas (mMLC) permite que essa técnica alcance um maior grau de conformação de dose na lesão alvo, possibilitando uma menor irradiação das estruturas críticas e dos tecidos normais. Este trabalho visa apresentar os resultados dos testes de aceite e do comissionamento de um acelerador linear Varian ® 6EX dedicado à Radiocirurgia, associado com o colimador multi-lâminas da BrainLab ® instalado no Hospital das Clínicas da Faculdade de Medicina da USP (HC-FMUSP) e estabelecer um Programa de Garantia de Qualidade que seja exequível para os serviços que pretendem implantar essa técnica especial. Os resultados dos testes de aceitação mostraram-se coerentes e satisfatórios com as especificações definidas pelo fabricante e os testes de comissionamento ficaram dentro das recomendações internacionais. Os testes e as medidas que compõem o processo de controle de qualidade devem ser específicos para cada unidade de tratamento, assim como a necessidade, a frequência e os níveis de tolerância.
Title in English
Acceptance, commissioning and quality control in radiosurgery
Keywords in English
commissioning
quality control
radiosurgery
Abstract in English
Stereotactic Radiosurgery is a treatment technique that uses narrow beams of radiation focused with great accuracy in a small lesion. The introduction of micro multileaf collimators (mMLC) allows this technique to reach a higher degree of dose conformation of the target lesion allowing a smaller irradiation of critical structures and normal tissues. This paper presents the results of the acceptance tests and commissioning of a Varian ® 6EX linear accelerator dedicated to radiosurgery associated with the BrainLab ® micro multileaf collimator installed in the Hospital das Clínicas da Faculdade de Medicina da USP (HC-FMUSP) and establish feasible quality assurance program for the services that employ this special technique. The results of the acceptance tests were satisfactory and are willing with the specifications provided by the manufacturer and the commissioning tests were within the international recommendations. The tests and measures that are part of quality control process should be specific to each treatment unit, and the need, frequency and levels of tolerance.
 
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2009ToretiAceite.pdf (3.13 Mbytes)
Publishing Date
2011-10-17
 
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