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.
Artículo
en Chino
| WPRIM
| ID: wpr-246546
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:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Radioterapia
/
Diagnóstico por Imagen
/
Radioterapia de Intensidad Modulada
/
Tomografía Computarizada de Haz Cónico
/
Errores de Configuración en Radioterapia
/
Neoplasias de Cabeza y Cuello
/
Métodos
Tipo de estudio:
Estudio diagnóstico
Límite:
Humanos
Idioma:
Chino
Revista:
Journal of Biomedical Engineering
Año:
2012
Tipo del documento:
Artículo
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