P36-9 Dosimetric comparison of coplanar, non-coplanar and multi-planar VMAT for radiotherapy patients with primary brain tumor

Abstract

Radiotherapy plays an important role in the treatment of primary brain tumors. In clinical practice, coplanar (cVMAT), non-coplanar (ncVMAT) and multi-planar VMAT (mpVMAT) are commonly adopted. The aim of the study is to investigate the overall plan quality and radiation dose to organs at risk, so as to determine which plan is more preferential for patients with primary brain tumor.