ESTRO 2024 - Abstract Book
S4254
Physics - Intra-fraction motion management and real-time adaptive radiotherapy
ESTRO 2024
Conclusion:
We provide a population-based PTV margin for rectal boost RT. Online-ART allows to reduce the PTV margin in all dimensions by eliminating the interfraction tumour motion and setup errors compared to non-adaptive RT. However, the PTV margin should integrate the error related to the daily delineation of the GTVboost, which is a major part of the online-ART workflow.
Keywords: CBCT-guided RT, Rectum boost, PTV margin
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