Title :
Analysis of the signal averaged ECG in the time-frequency domain
Author :
Spaargaren, A. ; English, MJ
Author_Institution :
Sussex Univ., Brighton, UK
fDate :
6/21/1905 12:00:00 AM
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;
Conference_Titel :
Computers in Cardiology, 1999
Conference_Location :
Hannover
Print_ISBN :
0-7803-5614-4
DOI :
10.1109/CIC.1999.826035
