Figure 1.

Mean shape model simulations. (a) Fast endocardial conduction model was used to simulate the electrical activity of the left ventricle. The endocardial layer (blue) had a sixfold increased CV compared to bulk myocardium (red). The electrical activation was then simulated for (b) intrinsic activation, in which the lower third of the endocardium was initially activated and (c) RV pacing was a surrogate for LBBB. To see this figure in color, go online.