Mitral Annulus Disjunction: A Comprehensive Cardiovascular Magnetic Resonance Phenotype and Clinical Outcomes Study.

ABSTRACT:

Background

Clinical importance of mitral annulus disjunction (MAD) is not well established.

Purpose

Characterize a population of MAD all-comers diagnosed by cardiac magnetic resonance imaging (MRI).

Study type

Retrospective.

Population

MAD confirmed in 222 patients, age of 49.2 ± 19.3 years, 126 (56.8%) males.

Field strength/sequence

1.5 T and 3 T/steady-state free precession and inversion recovery.

Assessment

Clinical history, outcomes, imaging, and arrhythmia data. MAD defined as a separation ≥2 mm between left ventricular myocardium and mitral annulus. Presence and pattern of late gadolinium enhancement (LGE) were analyzed. LGE in the papillary muscles and adjacent to MAD were identified as MAD related. Ventricular arrhythmias (VA) were grouped

SUBMITTER: Custodio P 

PROVIDER: S-EPMC11803685 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature