ESTRO 2025 - Abstract Book

S4354

RTT - Treatment planning, OAR and target definitions

ESTRO 2025

Results: Table 1 summarises the preferred weighting for key clinical plan metrics. The preferred weighting was determined as the plan that achieved the closest value to the clinical goals. The greatest gain to RAD1 was to the Body-PTV V35Gy(cc) indicating assigning more weighting to the STAMPs gave a more conformal mid-level dose wash. Preferred weighting varied for RAD2 with the majority of target goals favouring SD whilst the majority of OAR goals favoured B to AD.