ESTRO 2025 - Abstract Book

S2783

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

ESTRO 2025

conclusions. Not enough data was also observed for two other modalities with VMAT. For more complex treatments, a small number of QAs failed, but had MCS inferior to the 50th percentile (Figure 1).

Conclusion: This work aimed to reduce, rather than eliminate, the number of QAs by using the MCS 50th percentile as a threshold, even when no failures were observed in some prescriptions or techniques. This approach could