Analysis of setup error in the head and neck cancer radiotherapy using cone-beam CT scanning / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 851-854, 2012.
Article
em Zh
| WPRIM
| ID: wpr-246546
Biblioteca responsável:
WPRO
ABSTRACT
Cone-beam CT (CBCT) of Elekta can be used to analyze the setup errors in intensity modulated radiotherapy. A total of 240 patients with head and neck cancer were chosen in the period from October, 2009 to October, 2010. Their CBCT images were obtained after initial setup, and registered to the planning CT images, and then the setup errors on translational directions (X, Y, Z) and on rotational directions (U, V, W) were obtained and analyzed. The results showed that the setup errors on translational directions in Y-axis and Z-axis were larger than in X-axis, and the setup errors on rotational directions in Y-axis was much more obvious than those on the other two directions, which should be taken care during the patient daily setup. It may be concluded that the CBCT system can improve the precision for radiotherapy.
Texto completo:
1
Índice:
WPRIM
Assunto principal:
Radioterapia
/
Diagnóstico por Imagem
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Radioterapia de Intensidade Modulada
/
Tomografia Computadorizada de Feixe Cônico
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Erros de Configuração em Radioterapia
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Neoplasias de Cabeça e Pescoço
/
Métodos
Tipo de estudo:
Diagnostic_studies
Limite:
Humans
Idioma:
Zh
Revista:
Journal of Biomedical Engineering
Ano de publicação:
2012
Tipo de documento:
Article