MRgRT Quality Assurance for a Low-Field MR-Linac

Document Type

Article

Publication Date

1-1-2024

Publication Title

Seminars in radiation oncology

Abstract

The introduction of MR-guided treatment machines into the radiation oncology clinic has provided unique challenges for the radiotherapy QA program. These MR-linac systems require that existing QA procedures be adapted to verify linac performance within the magnetic field environment and that new procedures be added to ensure acceptable image quality for the MR system. While both high and low-field MR-linac options exist, this chapter is intended to provide a structure for implementing a QA program within the low-field MR environment. This review is divided into three sections. The first section focuses on machine QA tasks including mechanical and dosimetric verification. The second section is concentrated on the procedures implemented for imaging QA. Finally, the last section covers patient specific QA tasks including special considerations related to the performance of patient specific QA within the framework of online adaptive radiotherapy.

Medical Subject Headings

Humans; Particle Accelerators; Magnetic Resonance Imaging; Radiotherapy Planning, Computer-Assisted; Radiotherapy, Image-Guided; Radiometry

PubMed ID

38105087

Volume

34

Issue

1

First Page

129

Last Page

134

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