Delivery accuracy of VMAT on two beam-matched linacs provided by accelerated go live service.

ABSTRACT:

Introduction

Dosimetric accuracy is critical when a patient treated with volumetric modulated arc therapy (VMAT) is transferred to another beam-matched linac. To evaluate the performance of Accelerated Go Live (AGL) service, the measured beam characteristics and patient specific quality assurance (QA) results between two AGL-matched linacs were compared.

Materials and methods

Two VersaHD linacs were installed using the AGL service. After the installation, the beam data such as percentage depth dose (PDD), lateral profiles and output factors for all photon beams were measured. Relative doses were also measured as a function of the multi-leaf collimator (MLC) leaf gap width. Subsequently, VMAT plans were created for prostate, pelvis, head and neck, liver, lung cancers and mult

SUBMITTER: Tsuneda M 

PROVIDER: S-EPMC10338800 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature