[Image-guided radiotherapy by in-room CT-linear accelerator combination]. / Radiothérapie guidée par tomodensitométrie associée à l'accélérateur linéaire dans la salle de traitement.
Cancer Radiother
; 10(5): 245-51, 2006 Sep.
Article
em Fr
| MEDLINE
| ID: mdl-16959518
ABSTRACT
Target localization has become increasingly important in the advent of IMRT, as treatment margins are reduced and target doses are increased with high-dose gradients outside this target volume. The in-room CT on rails-LINAC system allows CT imaging while the patient remains immobilized in the treatment position just prior to treatment. The anatomic inter- and intra-fractional variations can be therefore quantified during a course of treatment. The position of the tumour can be checked and corrected before the fraction. In case of modification of tumour shape, a re-planning of the treatment is also feasible. However, several issues remain the integration with routine clinical treatment due to a lack of software tools, the frequency of imaging, and the cost-efficiency ratio. The clinical experience is yet very limited but CT-image-guided radiotherapy appears promising for prostate, brain and spinal tumours.
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Base de dados:
MEDLINE
Assunto principal:
Processamento de Imagem Assistida por Computador
/
Radioterapia Assistida por Computador
/
Tomografia Computadorizada por Raios X
Limite:
Humans
/
Male
Idioma:
Fr
Ano de publicação:
2006
Tipo de documento:
Article