Accelerated free-breathing 3D T1ρ cardiovascular magnetic resonance using multicoil compressed sensing.

ABSTRACT:

Background

Endogenous contrast T1ρ cardiovascular magnetic resonance (CMR) can detect scar or infiltrative fibrosis in patients with ischemic or non-ischemic cardiomyopathy. Existing 2D T1ρ techniques have limited spatial coverage or require multiple breath-holds. The purpose of this project was to develop an accelerated, free-breathing 3D T1ρ mapping sequence with whole left ventricle coverage using a multicoil, compressed sensing (CS) reconstruction technique for rapid reconstruction of undersampled k-space data.

Methods

We developed a cardiac- and respiratory-gated, free-breathing 3D T1ρ sequence and acquired data using a variable-density k-space sampling pattern (A = 3). The effect of the transient magnetization trajectory, incomplete recovery of magnetization between T1

SUBMITTER: Kamesh Iyer S 

PROVIDER: S-EPMC6327532 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature