Figure 4.

Non-invasive reconstruction of an epicardial pacing site. (A) Three-dimensional heart reconstruction, volume rendering after segmentation using the semi-transparent myocardial mode. Position of the tip of the coronary sinus lead is marked with a white diamond. (B) Non-invasive reconstruction of an epicardial isopotential map superimposed on the three-dimensional heart model demonstrating earliest activation along the distal tip of the coronary sinus lead. The anatomical position of the distal tip of the coronary sinus lead is marked with a white diamond, reconstructed pacing site is marked by red dot.