Seeking a Widely Adoptable Practical Standard to Estimate Signal-to-Noise Ratio in Magnetic Resonance Imaging for Multiple-Coil Reconstructions.

ABSTRACT:

Background

Signal-to-noise ratio (SNR) is used to evaluate the performance of magnetic resonance (MR) imaging systems. Accurate and consistent estimations are needed to routinely use SNR to assess coils and image reconstruction techniques.

Purpose

To identify a reliable and practical method for SNR estimation in multiple-coil reconstructions.

Study type

Technical evaluation and comparison.

Subjects/phantom

A uniform phantom and four healthy volunteers: 35, 38, 39 y/o males, 25 y/o female.

Field strength/sequence

Two-dimensional multislice gradient-echo pulse sequence at 3 T and 7 T.

Assessment

Reference-standard SNR was calculated from 100 multiple replicas. Six SNR methods were compared against it: difference image (DI), analytic array combinatio

SUBMITTER: Montin E 

PROVIDER: S-EPMC8633048 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature