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.
Translated title of the contribution | Image-guided radiotherapy by in-room CT-linear accelerator combination |
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Original language | French |
Pages (from-to) | 245-251 |
Number of pages | 7 |
Journal | Cancer/Radiotherapie |
Volume | 10 |
Issue number | 5 |
DOIs | |
State | Published - Sep 2006 |
Keywords
- Image-guided radiotherapy
- In-room CT
- Target localization
- Treatment setup
ASJC Scopus subject areas
- Oncology
- Radiology Nuclear Medicine and imaging