ESTRO 2025 - Abstract Book

S701

Clinical - CNS

ESTRO 2025

Conclusion: Generally, the variances observed in GTV contours were low and consistent. However, larger variations were observed for one patient. In the future, auto-segmentation algorithms will be implemented to assist the delineation and potentially identify sub-regions of higher variance and further reduce variations.

Keywords: Glioblastoma, GTV, inter-observer variation