Free-running 3D whole heart myocardial T₁ mapping with isotropic spatial resolution.

ABSTRACT:

Purpose

To develop a free-running (free-breathing, retrospective cardiac gating) 3D myocardial T₁ mapping with isotropic spatial resolution.

Methods

The free-running sequence is inversion recovery (IR)-prepared followed by continuous 3D golden angle radial data acquisition. 1D respiratory motion signal is extracted from the k-space center of all spokes and used to bin the k-space data into different respiratory states, enabling estimation and correction of 3D translational respiratory motion, whereas cardiac motion is recorded using electrocardiography and synchronized with data acquisition. 3D translational respiratory motion compensated T₁ maps at diastole and systole were generated with 1.5 mm isotropic spatial resolution with low-rank inversion and

SUBMITTER: Qi H 

PROVIDER: S-EPMC6851769 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature