Challenges in modeling the Agility multileaf collimator in treatment planning systems and current needs for improvement.

ABSTRACT:

Background

The Agility multileaf collimator (MLC) mounted in Elekta linear accelerators features some unique design characteristics, such as large leaf thickness, eccentric curvature at the leaf tip, and defocused leaf sides ('tilting'). These characteristics offer several advantages but modeling them in treatment planning systems (TPSs) is challenging.

Purpose

The goals of this study were to investigate the challenges faced when modeling the Agility in two commercial TPSs (Monaco and RayStation) and to explore how the implemented MLC models could be improved in the future.

Methods

Four linear accelerators equipped with the Agility, located at different centers, were used for the study. Three centers use the RayStation TPS and the other one uses Monaco. For comparison

SUBMITTER: Hernandez V 

PROVIDER: S-EPMC10092639 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature