Left atrial sphericity in relation to atrial strain and strain rate in atrial fibrillation patients.

ABSTRACT:

Purpose

Left atrial (LA) sphericity is a novel, geometry-based parameter that has been used to visualize and quantify LA geometrical remodeling in patients with atrial fibrillation (AF). This study examined the association between LA sphericity, and LA longitudinal strain and strain rate measured by feature-tracking in AF patients.

Methods

128 AF patients who underwent cardiovascular magnetic resonance (CMR) imaging in sinus rhythm prior to their pulmonary vein isolation (PVI) procedure were retrospectively analyzed. LA sphericity was calculated by segmenting the LA (excluding the pulmonary veins and the LA appendage) on a 3D contrast enhanced MR angiogram and comparing the resulting shape with a perfect sphere. LA global reservoir strain, conduit strain, contractile strain

SUBMITTER: Hopman LHGA 

PROVIDER: S-EPMC10520187 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature