Fig. 3From: High-dose proton beam therapy versus conventional fractionated radiation therapy for newly diagnosed glioblastoma: a propensity score matching analysisa Kaplan–Meier curves of necrosis-free survival. The median time from radiation therapy to development of radiation necrosis was 18.2 months. b: Kaplan–Meier curves of OS in the PBT group stratified by coexistence of radiation necrosis. OS of patients with radiation necrosis was significantly longer than the OS of patients without radiation necrosisBack to article page