B₀ field homogeneity recommendations, specifications, and measurement units for MRI in radiation therapy.

ABSTRACT:

Purpose

The purpose is: (a) Relate magnetic resonance imaging (MRI) quality recommendations for radiation therapy (RT) to B₀ field homogeneity; (b) Evaluate manufacturer specifications of B₀ homogeneity for 34 commercial whole-body MRI systems based on the MRI quality recommendations and RT application; (c) Measure field homogeneity in five commercial MRI systems and one commercial MRI-Linac used in RT and compare the results with their B₀ homogeneity specifications.

Methods

Magnetic resonance imaging quality recommendations for spatial integrity, image blurring, fat saturation, and null banding in RT were developed based on the literature. Guaranteed (maximum) and typical B₀ field homogeneity specifications for various diameter sp

SUBMITTER: Gach HM 

PROVIDER: S-EPMC8284094 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature