Title :
The QRS-integral of an electrogram as an indicator of the subsequent local activation duration
Author :
van Oosterom, A. ; Jacquemet, V.
Author_Institution :
Dept. of Cardiology, Univ. of Lausanne, Lausanne
Abstract :
In clinical electrophysiological studies the information extracted from measured electrograms is mainly limited to the timing of local depolarization. We investigated the relation between the activation recovery interval (ARI) and electrogram waveform morphology in 3D structures. Of the various features extracted from simulated electrograms on the surface bounding the myocardium the integrals over a time interval around local depolarization showed the highest correlation with nearby ARI values.
Keywords :
electrocardiography; waveform analysis; activation recovery interval; electrogram QRS integral; electrogram waveform morphology; local depolarization; myocardium surface bounds; subsequent local activation duration; Cardiology; Data mining; Electrophysiology; Feature extraction; Geometry; Myocardium; Solid modeling; Surface morphology; Surface waves; Timing;
Conference_Titel :
Computers in Cardiology, 2006
Conference_Location :
Valencia
Print_ISBN :
978-1-4244-2532-7
