Key result
Superimposing 3D MR images on electroanatomic maps achieved a mean registration surface-to-point distance of 1.33 mm and electrical isolation in 89% of pulmonary veins.
Why the study?
Does a simplified registration method combining visual alignment and surface registration of the posterior wall accurately integrate 3D MR images with real-time electroanatomic maps in patients with drug-refractory AF?
Observational (n=40)
Does a simplified registration method combining visual alignment and surface registration of the posterior wall accurately integrate 3D MR images with real-time electroanatomic maps in patients with drug-refractory AF?
A simplified registration method using posterior wall surface registration accurately integrates 3D MR images with electroanatomic mapping, facilitating successful pulmonary vein isolation in nearly 90% of cases.
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Supports MR-electroanatomic integration for AF ablation accuracy; leaves open outcome benefits in prospective trials.
Bertaglia et al. (2008) conducted an observational in Drug-refractory atrial fibrillation (n=40). Simplified registration method superimposing 3D MR left atrial images on real-time electroanatomic maps was evaluated on Accuracy of registration (surface-to-point distance) and percentage of pulmonary veins with electrical isolation. Superimposing 3D MR images on electroanatomic maps achieved a mean registration surface-to-point distance of 1.33 mm and electrical isolation in 89% of pulmonary veins.