Cardiac arrhythmias are a major cause of morbidity and mortality worldwide. Although
recent advances in cell-based models, including human-induced pluripotent stem cell …

Electrocardiographic imaging (ECGI) reconstructs the electrical activity of the heart from a
dense array of body-surface electrocardiograms and a patient-specific heart-torso geometry …

Background—Specific noninvasive signal processing was applied to identify drivers in
distinct categories of persistent atrial fibrillation (AF). Methods and Results—In 103 …

Optical map** has become an increasingly important tool to study cardiac
electrophysiology in the past 20 years. Multiple methods are used to process and analyze …

AF is a heterogeneous rhythm disorder that is related to a wide spectrum of etiologies and
has broad clinical presentations. Mechanisms underlying AF are complex and remain …

Aims Catheter ablation is an effective technique for terminating atrial arrhythmia. However,
given a high atrial fibrillation (AF) recurrence rate, optimal ablation strategies have yet to be …

Background: Sudden cardiac death because of ventricular fibrillation (VF) is commonly
unexplained in younger victims. Detailed electrophysiological map** in such patients has …

Electrocardiographic imaging (ECGI) is a technique to reconstruct non-invasively the
electrical activity on the heart surface from body-surface potential recordings and geometric …

The Hilbert transform has been used to characterize wave propagation and detect phase
singularities during cardiac fibrillation. Two map** modalities have been used: optical …

Background—The pivot is critical to rotors postulated to maintain atrial fibrillation (AF). We
reasoned that wavefronts circling the pivot should broaden the amplitude distribution of …