Integration of Three-Dimensional Left Atrial Magnetic Resonance Images into a Real-Time Electroanatomic Mapping System: Validation of a Registration Method

Background: The alignment of three‐dimensional (3D) left atrial images acquired by magnetic resonance (MR) with the anatomical information yielded by 3D mapping systems is one of the most critical issues in image integration techniques for catheter ablation of atrial fibrillation (AF). We assessed the accuracy of a simplified method of superimposing 3D MR left atrial images on real‐time left atrial electroanatomic maps (registration). Methods:...