Title :
Ventricular late potentials studied by nonstationary signal analysis
Author :
Dickhaus, Hartmut ; Khadra, Labib ; Lipp, Alexandra ; Schweizer, Mark
Author_Institution :
Med. Informatik, Universitat Heidelberg/Fachhochschule Heilbronn
fDate :
Oct. 29 1992-Nov. 1 1992
Abstract :
The time-frequency characteristics of late potentials (EP) of preprocessed ECG signals were investigated by means of FFT-spectrograms and the wavelet transform. The averaged ECGs of 21 patients with ventricular tachycardia and of 29 normal subjects were studied. The time-frequency distribution plots of wavelet transforms demonstrate a considerable high resolution for both variables. Quantification of an adequate distribution parameter allowed the discrimination between the two groups.
Keywords :
Interpolation; Lead; Wavelet transforms;
Conference_Titel :
Engineering in Medicine and Biology Society, 1992 14th Annual International Conference of the IEEE
Conference_Location :
Paris, France
Print_ISBN :
0-7803-0785-2
Electronic_ISBN :
0-7803-0816-6
DOI :
10.1109/IEMBS.1992.5761074
