Whole-Heart 4D Flow MRI for Evaluation of Normal and Regurgitant Valvular Flow: A Quantitative Comparison Between Pseudo-Spiral Sampling and EPI Readout.

ABSTRACT:

Background

Pseudo-spiral Cartesian sampling with compressed sensing reconstruction has facilitated highly accelerated 4D flow magnetic resonance imaging (MRI) in various cardiovascular structures. However, unlike echo planar imaging (EPI)-accelerated 4D flow MRI, it has not been validated in whole-heart applications.

Hypothesis

Pseudo-spiral 4D flow MRI (PROUD [PROspective Undersampling in multiple Dimensions]) is comparable to EPI in robustness of valvular flow measurements and remains comparable as the undersampling factor is increased and scan time reduced.

Study type

Prospective.

Population

Twelve healthy subjects and eight patients with valvular regurgitation.

Field strength/sequence

3.0 T; PROUD and EPI 4D flow sequences, 2D flow and balanced stead

SUBMITTER: Blanken CPS 

PROVIDER: S-EPMC9290924 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature