FIGURE 6.

Effect of myocardial wall curvature on wave geometry and optical activation sequence. (A) Electrical activation sequence in a cross section of a cylindrical domain. The stimulation site is marked “+” and the direction of wave propagation is indicated by arrows. Red thick lines are isochrones (spaced 5 ms), computed in observance of wall curvature. White thin lines show the activation sequence as computed neglecting curvature (see text). (B) Transmural conduction times for endocardial stimulation with and without curvature term. (Insets) Geometry with curvature term (red) and without curvature term (black). (C) Effects of total fiber rotation and preparation thickness on the pattern, obtained in a slab geometry.