Dynamic transmurality: Cardiac Optical Mapping reveals Waves Travel across Transmural Ablation Lines

  title={Dynamic transmurality: Cardiac Optical Mapping reveals Waves Travel across Transmural Ablation Lines},
  author={Jennifer D. Simonotto and Michael D. Furman and William L. Ditto and Abraham Miliotis and Mark L. Spano and Thomas M. Beaver},
  journal={Int. J. Bifurc. Chaos},
Cardiac ablation is increasingly used to interdict the complex propagation of excitatory waves during atrial fibrillation. While such procedures are useful, they can often fail. Here we use fluorescence imaging to observe the electrical activity of an ablated porcine heart. We find that, while ablation lines do attenuate cardiac waves, the attenuation is incomplete. A remnant of the incident wave survives passage through the ablation barrier, albeit as a subthreshold signal. More importantly… Expand


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