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. Author manuscript; available in PMC: 2016 Jan 27.
Published in final edited form as: Adv Exp Med Biol. 2015;859:343–365. doi: 10.1007/978-3-319-17641-3_14

Figure14_7.

Figure14_7

Virtual electrode patterns optically recorded from a 4 × 4-mm area of the rabbit anterior epicardium during unipolar and bipolar stimulation. A: conventional “dogbone”-shaped virtual electrode polarizations (VEP) during unipolar cathodal stimulation. B: VEP during bipolar stimulation with a pacing dipole placed perpendicular to myocardial fibers. C: results of bipolar stimulation with electrodes along the fibers. The interelectrode distance was 0.8 mm. Images were collected in the middle of a 2-ms diastolic stimulus. This figure is modified from Nikolski et al.[47]