Bozo Tomas; Darko Zelenika; Zeljko Roncevic

Graphic Representations and Frequency Parameters of Heart Sound Signals

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Author(s)

Bozo Tomas ^1,* Darko Zelenika ² Zeljko Roncevic ³

1. Faculty of Mechanical Engineering and Computing, University of Mostar, Matice hrvatske bb, 88000, Mostar, Bosnia and Herzegovina

2. Faculty of Information Studies, Ljubljanska cesta 31A, 8000, Novo mesto, Slovenia

3. University Clinical Hospital Mostar, Clinic for Children’s Diseases, Cardiology Department, Bijeli brijeg bb, 88000, Mostar, Bosnia and Herzegovina

* Corresponding author.

DOI: https://doi.org/10.5815/ijigsp.2018.07.04

Received: 24 Apr. 2018 / Revised: 7 May 2018 / Accepted: 16 May 2018 / Published: 8 Jul. 2018

Index Terms

Heart Sound Frequency Parameters, Heart Sound Graphic Representation, Haert Sound Spectrogram, Phonocardiogram (PCG), Still’s Murmur, Ventricular Septal Defect (VSD)

Abstract

Sounds produced by acoustic activity of the heart are series (sequences) of quasi-periodic events which are repeated throughout life, one period (cycle) of these events lasts less than one second. The advancements in technology have enabled us to create various tools for audio and graphic representations of these events. Physicians, by using such tools, can more accurately determine diagnosis by interpretation of heart sound and/or by visual interpretation of graphic displays of heart sounds. This paper presents frequency parameters and graphic illustrations of heart sound signals for two groups of heart murmurs: innocent Still’s murmur and pathologic heart murmur of Ventricular Septal Defect (VSD). Also, on behalf of the frequency analysis of acoustic cardiac signals with Still’s murmur was given a medical explanation of cause and origin of Still’s murmur.

Cite This Paper

Božo Tomas, Darko Zelenika, Željko Rončević, " Graphic Representations and Frequency Parameters of Heart Sound Signals ", International Journal of Image, Graphics and Signal Processing(IJIGSP), Vol.10, No.7, pp. 34-41, 2018. DOI: 10.5815/ijigsp.2018.07.04

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International Journal of Image, Graphics and Signal Processing (IJIGSP)