Computation and Projection of Spiral Wave Trajectories During Atrial Fibrillation
Language
en
Article de revue
This item was published in
Cardiac Electrophysiology Clinics. 2015-03, vol. 7, n° 1, p. 37-47
Elsevier
English Abstract
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 ...Read more >
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.Read less <
English Keywords
Atrial fibrillation
Body surface potential map
Cardiac electrophysiology
Phase mapping
Origin
Hal imported