Accelerated free-breathing whole-heart 3D T₂ mapping with high isotropic resolution.

ABSTRACT:

Purpose

To enable free-breathing whole-heart 3D T₂ mapping with high isotropic resolution in a clinically feasible and predictable scan time. This 3D motion-corrected undersampled signal matched (MUST) T₂ map is achieved by combining an undersampled motion-compensated T₂ -prepared Cartesian acquisition with a high-order patch-based reconstruction.

Methods

The 3D MUST-T₂ mapping acquisition consists of an electrocardiogram-triggered, T₂ -prepared, balanced SSFP sequence with nonselective saturation pulses. Three undersampled T₂ -weighted volumes are acquired using a 3D Cartesian variable-density sampling with increasing T₂ preparation times. A 2D image-based navigator is used to correct for respirato

SUBMITTER: Bustin A 

PROVIDER: S-EPMC6899588 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature