Improved quantification of aortic regurgitation with direct regurgitant jet measurement by four-dimensional flow cardiovascular magnetic resonance in complex congenital heart disease.

ABSTRACT:

Background

Due to the presence of complex flow states and significant jet eccentricity in patients with congenital heart disease (CHD), accurate quantification of aortic regurgitation (AR) using standard echocardiographic or conventional cardiovascular magnetic resonance (CMR) imaging measures remains challenging. Four-dimensional flow (4DF) CMR permits transvalvular flow quantification under non-laminar flow states, although it has not been well validated for AR quantification in CHD.

Methods

In 186 patients with moderate or complex CHD, we evaluated the agreement between different methods of AR quantification by 4DF CMR when compared to volumetry. Regurgitant flow volumes were measured (1) conventionally on time-resolved, velocity-encoded 4DF sequences at the aortic annulu

SUBMITTER: Connor B 

PROVIDER: S-EPMC12053713 | biostudies-literature | 2025 Summer

REPOSITORIES: biostudies-literature