Characterization of Ethos therapy systems for adaptive radiation therapy: A multi-machine comparison.

ABSTRACT:

Purpose

The recently released Ethos therapy system (Varian Medical Systems) allows for online CBCT-guided adaptive radiation therapy (RT). The clinical introduction of multiple systems requires machine characterization and machine variation quantification to allow patient interchangeability between systems. Despite several clinical introductions, limited vendor-independent information on machine performance is available. Our aim was to determine the relevant dosimetric and mechanical characteristics of individual machines and to quantify machine variations.

Methods

Six Ethos treatment machines, equipped with a 6-MV FFF beam including dual-layer MLC and kV-CBCT system, were recently introduced clinically after extensive machine characterization and pre-configured beam model v

SUBMITTER: van de Schoot AJ 

PROVIDER: S-EPMC10161062 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature