Highly efficient nonrigid motion-corrected 3D whole-heart coronary vessel wall imaging.

ABSTRACT:

Purpose

To develop a respiratory motion correction framework to accelerate free-breathing three-dimensional (3D) whole-heart coronary lumen and coronary vessel wall MRI.

Methods

We developed a 3D flow-independent approach for vessel wall imaging based on the subtraction of data with and without T2-preparation prepulses acquired interleaved with image navigators. The proposed method corrects both datasets to the same respiratory position using beat-to-beat translation and bin-to-bin nonrigid corrections, producing coregistered, motion-corrected coronary lumen and coronary vessel wall images. The proposed method was studied in 10 healthy subjects and was compared with beat-to-beat translational correction (TC) and no motion correction for the left and right coronary arteries.

SUBMITTER: Cruz G 

PROVIDER: S-EPMC5412916 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature