MP-RAVE: IR-Prepared T₁ -Weighted Radial Stack-of-Stars 3D GRE imaging with retrospective motion correction.

ABSTRACT:

Purpose

To describe an inversion-recovery T₁ -weighted radial stack-of-stars 3D gradient echo (GRE) sequence with comparable image quality to conventional MP-RAGE and to demonstrate how the radial acquisition scheme can be utilized for additional retrospective motion correction to improve robustness to head motion.

Methods

The proposed sequence, named MP-RAVE, has been derived from a previously described radial stack-of-stars 3D GRE sequence (RAVE) and includes a 180° inversion recovery pulse that is generated once for every stack of radial views. The sequence is combined with retrospective 3D motion correction to improve robustness. The effectiveness has been evaluated in phantoms and healthy volunteers and compared to conventional MP-RAGE acquisition.

Results

SUBMITTER: Solomon E 

PROVIDER: S-EPMC10323698 | biostudies-literature | 2023 Jul

REPOSITORIES: biostudies-literature