PS01.50: Respiratory-Gated Stereotactic Body Radiation Therapy for Stage I Non–Small Cell Lung Cancer: A Retrospective Review

Abstract

Background: We previously reported that a discrete appearance and limited extent of mediastinal lymph nodes (MLNs) were associated with a better outcome of chemoradiotherapy (CRT) (Horinouchi et al., IJROBP 2016). The pretreatment diagnosis of MLNs is essential for appropriate patient selection. However, a substantial proportion of patient do not undergo invasive tissue sampling in daily clinical practice.