Optimized respiratory-resolved motion-compensated 3D Cartesian coronary MR angiography.

ABSTRACT:

Purpose

To develop a robust and efficient reconstruction framework that provides high-quality motion-compensated respiratory-resolved images from free-breathing 3D whole-heart Cartesian coronary magnetic resonance angiography (CMRA) acquisitions.

Methods

Recently, XD-GRASP (eXtra-Dimensional Golden-angle RAdial Sparse Parallel MRI) was proposed to achieve 100% scan efficiency and provide respiratory-resolved 3D radial CMRA images by exploiting sparsity in the respiratory dimension. Here, a reconstruction framework for Cartesian CMRA imaging is proposed, which provides respiratory-resolved motion-compensated images by incorporating 2D beat-to-beat translational motion information to increase sparsity in the respiratory dimension. The motion information is extracted from inter

SUBMITTER: Correia T 

PROVIDER: S-EPMC6220806 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature