Improving motion robustness of 3D MR fingerprinting with a fat navigator.

ABSTRACT:

Purpose

To develop a 3D MR fingerprinting (MRF) method in combination with fat navigators to improve its motion robustness for neuroimaging.

Methods

A rapid fat navigator was developed using the stack-of-spirals acquisition and non-Cartesian spiral GRAPPA. The fat navigator module was implemented in the 3D MRF sequence with high scan efficiency. The developed method was first validated in phantoms and five healthy subjects with intentional head motion. The method was further applied to infants with neonatal opioid withdrawal symptoms. The 3D MRF scans with fat navigators acquired with and without acceleration along the partition-encoding direction were both examined in the study.

Results

Both phantom and in vivo results demonstrated that the added fat navigator module

SUBMITTER: Hu S 

PROVIDER: S-EPMC10524525 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature