Motion-robust quantitative multiparametric brain MRI with motion-resolved MR multitasking.

ABSTRACT:

Purpose

To address head motion in brain MRI with a novel motion-resolved imaging framework, with application to motion-robust quantitative multiparametric mapping.

Methods

MR multitasking conceptualizes the underlying multiparametric image in the presence of motion as a multidimensional low-rank tensor. By incorporating a motion-state dimension into the parameter dimensions and introducing unsupervised motion-state binning and outlier motion reweighting mechanisms, the brain motion can be readily resolved for motion-robust quantitative imaging. A numerical motion phantom was used to simulate different discrete and periodic motion patterns under various translational and rotational scenarios, as well as investigate the sensitivity to exceptionally small and large displacement

SUBMITTER: Ma S 

PROVIDER: S-EPMC8616852 | biostudies-literature | 2022 Jan

REPOSITORIES: biostudies-literature