Highly accelerated free-breathing real-time myocardial tagging for exercise cardiovascular magnetic resonance.

ABSTRACT:

Background

Exercise cardiovascular magnetic resonance (Ex-CMR) myocardial tagging would enable quantification of myocardial deformation after exercise. However, current electrocardiogram (ECG)-segmented sequences are limited for Ex-CMR.

Methods

We developed a highly accelerated balanced steady-state free-precession real-time tagging technique for 3 T. A 12-fold acceleration was achieved using incoherent sixfold random Cartesian sampling, twofold truncated outer phase encoding, and a deep learning resolution enhancement model. The technique was tested in two prospective studies. In a rest study of 27 patients referred for clinical CMR and 19 healthy subjects, a set of ECG-segmented for comparison and two sets of real-time tagging images for repeatability assessment were colle

SUBMITTER: Morales MA 

PROVIDER: S-EPMC10544487 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature