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Updated: Aug 10, 2025

High-Resolution Endocardial and Epicardial Optical Mapping in a Sheep Model of Stretch-Induced Atrial Fibrillation
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Regions of Highly Recurrent Electrogram Morphology With Low Cycle Length Reflect Substrate for Atrial Fibrillation

Shin Yoo1, Markus Rottmann1, Jason Ng1

  • 1Feinberg Cardiovascular and Renal Research Institute, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA.

JACC. Basic to Translational Science
|February 13, 2023
PubMed

Keywords:
AF, atrial fibrillationAI, anisotropy indexCFAE, complex fractionated atrial electrogramCLR, cycle length of the most recurrent electrogram morphologyDF, dominant frequencyEGM, electrogramEMR, electrogram morphology recurrenceFFT, fast Fourier transformFI, fractionation intervalFIRM, focal impulse and rotor mappingLAA, left atrial appendageLAFW, left atrial free wallLAT, local activation timeOI, organization indexPLA, posterior left atriumPV, pulmonary veinRAA, right atrial appendageRAFW, right atrial free wallRAP, rapid atrial pacingRec%, recurrence percentageShEn, Shannon’s entropyarrhythmiasatrial fibrillationfibrosismapping

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