Time-frequency analysis of heart sounds before and after angioplasty

M. A. Tinati*, A. Bouzerdoum, J. Mazumdar, L. J. Mahar

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

Heart sounds have been recorded from patients with coronary artery disease before and after angioplasty in the cardiology department of the Royal Adelaide Hospital. In this paper we present an algorithm to decompose the recorded signals to beat cycles synchronized with electrocardiogram (ECG) and detect the most correlated cycles. Time-frequency analysis is carried out on the isolated beat cycles, and another algorithm is used to detect local maxima in the time-frequency plane. The detected maxima are then compared before and after angioplasty.

Original languageEnglish
Pages75-78
Number of pages4
Publication statusPublished - 1997
Externally publishedYes
EventProceedings of the 1997 13th International Conference on Digital Signal Processing, DSP. Part 2 (of 2) - Santorini, Greece
Duration: 2 Jul 19974 Jul 1997

Conference

ConferenceProceedings of the 1997 13th International Conference on Digital Signal Processing, DSP. Part 2 (of 2)
CitySantorini, Greece
Period2/07/974/07/97

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