PASHAEI, Ali; BAYER, Jason; MEILLET, Valentin; DUBOIS, Rémi; VIGMOND, Edward

doi:10.1016/j.ccep.2014.11.001

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PASHAEI, Ali
Center for Computational Imaging and Simulation Technologies in Biomedicine [CISTIB]

BAYER, Jason
Modélisation et calculs pour l'électrophysiologie cardiaque [CARMEN]

MEILLET, Valentin
IHU-LIRYC

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Cardiac Electrophysiology Clinics. 2015-03, vol. 7, n° 1, p. 37-47

Elsevier

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To show how atrial fibrillation rotor activity on the heart surface manifests as phase on the torso, fibrillation was induced on a geometrically accurate computer model of the human atria. The Hilbert transform, time embedding, and filament detection were compared. Electrical activity on the epicardium was used to compute potentials on different surfaces from the atria to the torso. The Hilbert transform produces erroneous phase when pacing for longer than the action potential duration. The number of phase singularities, frequency content, and the dominant frequency decreased with distance from the heart, except for the convex hull.< Leer menos

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Atrial fibrillation

Body surface potential map

Cardiac electrophysiology

Phase mapping

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Computation and Projection of Spiral Wave Trajectories During Atrial Fibrillation

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