ESTRO 2025 - Abstract Book

S4358

RTT - Treatment planning, OAR and target definitions

ESTRO 2025

greatest criticality was the ipsilateral parotid gland: in all patients except one the constraint was never met, even in the nominal scenario.

Conclusion: The variations in the target and OARs indexes were found to be minor in most cases, thanks to the use of robust planning. Future perspectives of this very preliminary study include extending the study to larger sample size and investigating associations between dosimetric data and the development of post-treatment toxicity. Future studies and collaborative initiatives to establish shared guidelines regarding robust planning methods and parameters