The dark line connects the center of masses (solid points) under the specific lead, which are displayed on the y-axis. Time (ms) is displayed on the x-axis. During RVIT capture shown, the first activation occurred under V4 (M4c) and RVLWd = M4c to M1c, LVLWd = M4c to M8c, and V5-V8d = M5c to M8c in ms.
Figure 4: Impact of lead placement on the pattern of ventricular depolarization in different RV locations in one patient. The plane of the tricuspid valve is highlighted using a contrast agent or a dashed white line. Please note the distance of the cSp lead from the tricuspid annulus, which was approximately 15 mm.