Figure 1

(A) Short-axis Cine slice with overlaid EP catheter (Red arrow) and pacing catheter (Yellow arrow) before AV node ablation (B) Electrical signals from the Ablation catheter and three Surface lead ports prior to, during RF ablation (Ablation ON region) and post-ablation, demonstrating complete AV node destruction, as seen via a lack of ECG signal at the Ablation catheter post-ablation (C) Two 3D MDE images post-ablation, showing hyper-enhanced ablated node (red dotted lines).