A comparative study of different imaging modalities for successful percutaneous left atrial appendage closure.

Objectives: Accurate sizing of the left atrial appendage (LAA) is essential when performing percutaneous LAA closure. This study aimed to compare different LAA imaging modalities and sizing methods in order to obtain successful LAA closure.

Background: Percutaneous LAA closure is an increasingly used treatment strategy to prevent stroke in patients with atrial fibrillation.