Improving cardiac computed tomography angiography image quality and diagnostic confidence for atrial fibrillation after left atrial appendage closure using a second-generation whole-heart motion correction algorithm.

ABSTRACT:

Background

Left atrial appendage (LAA) closure is a key stroke prevention strategy for non-valvular atrial fibrillation (AF). Cardiac computed tomography angiography (CTA) has emerged as an effective non-invasive alternative to transesophageal echocardiography for follow-up assessment. However, image quality and diagnostic confidence are often compromised by device-related artifacts and cardiac motion, highlighting the need for advanced motion correction techniques such as Snapshot Freeze 2 (SSF2), a second-generation whole-heart algorithm. The effects of SSF2 on patients with LAA closure have not yet been examined. Thus, this study sought to examine the ability of SSF2 to improve cardiac CTA image quality and diagnostic confidence for AF after LAA closure.

Methods

This retr

SUBMITTER: Li Y 

PROVIDER: S-EPMC12780723 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature