Motion-robust diffusion compartment imaging using simultaneous multi-slice acquisition.

ABSTRACT:

Purpose

To achieve motion-robust diffusion compartment imaging (DCI) in near continuously moving subjects based on simultaneous multi-slice, diffusion-weighted brain MRI.

Methods

Simultaneous multi-slice (SMS) acquisition enables fast and dense sampling of k- and q-space. We propose to achieve motion-robust DCI via slice-level motion correction by exploiting the rigid coupling between simultaneously acquired slices. This coupling provides 3D coverage of the anatomy that substantially constraints the slice-to-volume alignment problem. This is incorporated into an explicit model of motion dynamics that handles continuous and large subject motion in robust DCI reconstruction.

Results

We applied the proposed technique, called Motion Tracking based on Simultanous Multislic

SUBMITTER: Marami B 

PROVIDER: S-EPMC6414287 | biostudies-literature | 2019 May

REPOSITORIES: biostudies-literature