ESTRO 2025 - Abstract Book

S2897

Physics - Dose prediction, optimisation and applications of photon and electron planning

ESTRO 2025

of the rectum, the average u D,1% of the individual OARs of the patient population did not show a significant difference compared to the PTV.

Conclusion: The availability of the mean dose and standard deviation files enables the identification of regions with high dosimetric uncertainty caused by DIR. This information can be leveraged to optimize treatment planning for reirradiation and to enhance the accuracy of DIR if necessary. By incorporating these dosimetric considerations into the planning workflow, treatment safety and effectiveness can potentially be improved.

Keywords: Deformable image registration, dose uncertainties