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. Author manuscript; available in PMC: 2010 Mar 1.
Published in final edited form as: Heart Rhythm. 2008 Nov 17;6(3):361–367. doi: 10.1016/j.hrthm.2008.11.010

Figure 8.

Figure 8

The transmembrane potential as a function of position in a sheet of cardiac tissue. The electric field has a strength of 18,500 V/m and is applied at a time of 90 ms. Throughout the tissue a random distribution of fiber angles was added in addition to the fiber geometry shown in Fig. 2. When the wave front triggered by break excitation reaches the edge of the hyperpolarized region (114 ms), the surrounding tissue is refractory and the wave front dies (130 ms). The propagation speed is measured at the location of the white dot in the 98 ms frame. The color scale is shown in Fig. 2. The supplemental file Fig8Video.avi contains a video of this simulation.