Analysis of the signal averaged ECG in the time-frequency domain

Author

Spaargaren, A. ; English, MJ

Author_Institution

Sussex Univ., Brighton, UK

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

571

Lastpage

574

Abstract

The detection of Ventricular Late Potential (VLP) activity within the terminal region of the QRS complex provides an indicator of a patient´s susceptibility to Ventricular Tachycardia. In this investigation the signal averaged ECG was analysed in the time-frequency and time-scale domains, using the exponential distribution and the continuous wavelet transform respectively. Differences in the energy distribution between the patients with VLPs and without were observed. These differences were quantified by calculating the percentage of energy in different regions of the time-frequency plot. The results suggest that the proposed method could be a useful and possibly advantageous tool to aid VLP detection

Keywords

electrocardiography; exponential distribution; medical signal detection; medical signal processing; time-frequency analysis; wavelet transforms; QRS complex; VLP detection; Ventricular Tachycardia; continuous wavelet transform; energy distribution; exponential distribution; signal averaged ECG; terminal region; time-frequency domain; time-scale domain; ventricular late potential activity; Continuous wavelet transforms; Electrocardiography; Exponential distribution; Fourier transforms; Kernel; Signal analysis; Signal resolution; Time frequency analysis; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1999

Conference_Location

Hannover

ISSN

0276-6547

Print_ISBN

0-7803-5614-4

Type

conf

DOI

10.1109/CIC.1999.826035

Filename

826035