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It is shown that time frequency signal analysis could be a useful technique in detecting late potentials (LP). In particular, the spectrogram, the Wigner distribution and the wavelet transform have been applied to ECG signals from patients with sustained ventricular tachycardia. Comparisons of the t...

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Bibliographic Details
Published inJournal of medical engineering & technology Vol. 17; no. 6; pp. 228 - 231
Main Authors Khadra, L., Dickhaus, H., Lipp, A.
Format Journal Article
LanguageEnglish
Published Informa UK Ltd 1993
Taylor & Francis
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ISSN0309-1902
1464-522X
DOI10.3109/03091909309006330

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Summary:It is shown that time frequency signal analysis could be a useful technique in detecting late potentials (LP). In particular, the spectrogram, the Wigner distribution and the wavelet transform have been applied to ECG signals from patients with sustained ventricular tachycardia. Comparisons of the three algorithms reveals that much better time localization is achieved by the wavelet transform. Moreover, it is concluded that a separation between healthy subjects and patients could be obtained based upon time frequency analysis.
ISSN:0309-1902
1464-522X
DOI:10.3109/03091909309006330