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.