Fig. 5.

Ellipse wavefront fitting algorithm for a single activation map (method 1) applied to atrial geometry simulations. An example is shown here with pacing from the LSPV. (A) Activation map. (B) Longitudinal CV. (C) Transverse CV. (D) Absolute error in longitudinal CV. (E) Absolute error in transverse CV. (F) Atlas fibre map used for simulation (shown as black lines) in anteroposterior view. (G) Atlas fibre map in posteroanterior view. (H) Estimated fibre direction map coloured by angle error, with correctly estimated areas shown in blue, and incorrectly estimated areas in red for the posteroanterior view. Estimated fibre directions are displayed as black lines. (I) Equivalent map to (H) for the anteroposterior view.