ISSN 2079-3537      

Scientific Visualization
Issue Year: 2017
Quarter: 1
Volume: 9
Number: 1
Pages: 97 - 111
Authors: Y. Gorshkov (Russian Federation)
Address: Y. Gorshkov
Bauman Moscow State Technical University, Russian Federation
Abstract: Present methods of heart disease detection (auscultation of the heart with a phonendoscope and phonocardiograph) do not help to detect heart disease at early stages when the signs are mainly insignificant heart sounds and signals poorly distinguishable both by ear and by PCG. New means of processing and obtaining multilevel time-and-frequency wavelets (acoustic cardiograms) of heart sounds and murmurs with the aim of conducting diagnostic cardiological testing are considered. Researches carried out in Bauman MSTU with the use of the software package WaveView-MWA have shown that acoustic cardiograms are much more informative compared to traditional Fourier spectrograms and, in contrast to the latter ones, they allow to easily identify the finest local peculiarities of heart sounds. Reception examples of obtaining acoustic cardiograms and the basic frequency-time characteristics of heart sounds and murmurs at various diseases.
Language: Russian

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