Early detection of right atrial dysfunction assessed by MR-feature tracking in patients with arrhythmogenic right ventricular cardiomyopathy.

ABSTRACT:

Background

The importance of right atrial (RA) function assessment in arrhythmogenic right ventricular cardiomyopathy (ARVC) is increasingly being recognized. MR-feature tracking (MR-FT) has emerged as a novel approach for quantifying atrial function. Therefore, we aimed to evaluate whether early RA dysfunction, even without RA dilation, can be identified in patients with ARVC using MR-FT.

Methods

Sixty-four patients with ARVC, of whom 47 were non-RA dilated and 17 were RA dilated patients, along with 41 healthy controls were included. RA reservoir, conduit, and booster strain (εs, εe, and εa) and peak positive, early negative, and late negative strain rate (SRs, SRe, and SRa) were measured using MR-FT. Right ventricular (RV) remodeling index was calculated as the ratio of R

SUBMITTER: Shi J 

PROVIDER: S-EPMC12922211 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature