Exploring the sensitivity of magnetic resonance fingerprinting to motion.

ABSTRACT:

Purpose

To explore the motion sensitivity of magnetic resonance fingerprinting (MRF), we performed experiments with different types of motion at various time intervals during multiple scans. Additionally, we investigated the possibility to correct the motion artifacts based on redundancy in MRF data.

Methods

A radial version of the FISP-MRF sequence was used to acquire one transverse slice through the brain. Three subjects were instructed to move in different patterns (in-plane rotation, through-plane wiggle, complex movements, adjust head position, and pretend itch) during different time intervals. The potential to correct motion artifacts in MRF by removing motion-corrupted data points from the fingerprints and dictionary was evaluated.

Results

Morphological structu

SUBMITTER: Yu Z 

PROVIDER: S-EPMC6215476 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature