NDLI: Geometrical and temporal ECG features for quantification of increased ventricular repolarization dispersion in an experimental heart rabbit model

Content Provider	IEEE Xplore Digital Library
Author	Arini, P.D. Valverde, E.R. Bertran, G.C. Laguna, P.
Copyright Year	2005
Description	Author affiliation: Argentina Inst. of Math., CONICET (Arini, P.D.)
Abstract	Abnormal increase of ventricular repolarization dispersion (VRD) is an important risk factor for severe arrhythmia development. An increased VRD implies a modification of the spatio/temporal T wave morphology. Our objective is to study the ECG derived VRD feature markers that better represent the electrical modifications generated by increased VRD in an in vitro rabbit heart experiment which has global VRD induced, at all myocardium areas, by supplying d-Sotalol (dS) and by premature ventricular stimulation (PVS). Temporal (T-wave duration, T $_{W})$ and geometrical (mean repolarization axis, ThetaXT , measured respect to a fix reference X axis) features were shown as the better markers of increased VRD, with the higher discrinant power in the T wave duration. Results are: $T_{W}:(95plusmn7$ ms) vs (118plusmn15 ms) for Control vs PVS; $T_{W}:(78plusmn10$ ms) vs (133plusmn29 ms) for Control vs dS; $Theta_{XT}-(35plusmn51deg)$ vs (117plusmn49deg) for Control vs dS
Starting Page	89
Ending Page	92
File Size	553512
Page Count	4
File Format	PDF
ISBN	0780393376
DOI	10.1109/CIC.2005.1588041
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-09-25
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Electrocardiography Rabbits Solid modeling Protocols Signal analysis In vitro Electrodes Biomedical engineering Heart rate variability Mathematical model
Content Type	Text
Resource Type	Article

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