Characterizing the motion management system accuracy on a 1.5T MR-Linac.

ABSTRACT:

Introduction

Motion management techniques have enabled drastic reductions in treatment volume allowing for dose escalation. The superior contrast of MRI combined with the ability to perform cine imaging during treatment enable surrogate-less tracking for gating. The purpose of this work is to commission motion management system with gating capabilities on the 1.5T MR-Linac and to characterize system performance.

Methods

Linear accelerator stability during gating was measured for a wide range of duty cycles (16 % - 100 %). Motion tracking accuracy and gating latency were characterized for varying target sizes and breathing rates, and with and without adaptive motion prediction using a commercially available motion phantom. Clinical treatment plans were created for lung, prost

SUBMITTER: Donahue W 

PROVIDER: S-EPMC12673532 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature