Some theoretical results on the observability of repolarization heterogeneity on surface ECG
Articolo
Data di Pubblicazione:
2013
Citazione:
Some theoretical results on the observability of repolarization heterogeneity on surface ECG / L. Mainardi, R. Sassi. - In: JOURNAL OF ELECTROCARDIOLOGY. - ISSN 0022-0736. - 46:3(2013), pp. 270-275. [10.1016/j.jelectrocard.2013.02.011]
Abstract:
Assessing repolarization heterogeneity (RH) from surface ECG recording is an open issue in modern electrocardiography, despite the fact that several indexes measured on the T-wave have been proposed and tested. To understand how RH occurring at myocite level is reflected on T-wave shapes, in this paper we propose a mathematical framework that combines a simple statistical model of cardiac repolarization times with the dominant T-wave formalism. Within this framework we compare different T-wave features such as T-wave amplitude, T-wave amplitude variability or QT intervals and we describe mathematically how they are linked to the spatial and temporal components of repolarization heterogeneity.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Biophysical models of repolarization; Repolarization heterogeneity; T-wave analysis; V-index
Elenco autori:
L. Mainardi, R. Sassi
Link alla scheda completa: