ESTRO 2024 - Abstract Book

S4061

Physics - Inter-fraction motion management and offline adaptive radiotherapy

ESTRO 2024

Conclusion:

Offline plan adaptation based on HyperSight CBCT is feasible for prostate cancer patients without the need to implement a specific calibration curve. For lung cancer patients, breathing motion may introduce artifacts on the HyperSight CBCT, hampering accurate dose calculation on the uncorrected CBCT. The application of density overrides may solve this issue.

Keywords: Ethos, HyperSight CBCT, dosimetric accuracy

1877

Proffered Paper

Integrating image registration uncertainty into dose accumulation via principal component analysis

Sebastian Meyer 1 , Yu-Chi Hu 1 , Andreas Rimner 2 , Laura Cerviño 1 , Pengpeng Zhang 1

1 Memorial Sloan Kettering Cancer Center, Department of Medical Physics, New York, USA. 2 Memorial Sloan Kettering Cancer Center, Department of Radiation Oncology, New York, USA

Purpose/Objective: