Digital stethoscope system: the feasibility of cardiac auscultation

Katarzyna Pariaszewska , Marcel Młyńczak , Wiktor Niewiadomski , Gerard Cybulski


The application of the digital stethoscope system is a new tendency in methods of cardiac auscultation. Heart sounds, generated by the fluctuations of blood velocity and vibrations of muscle structure, are an important signal in the primary diagnosis of heart diseases. Since the XIXs century for physical examination an analog stethoscope was used, but the development of microelectronics enable the construction of digital stethoscopes which started modern phonocardiography. The typical hardware of the system could be divided into analog and digital parts, respectively. The first one consists of microphone and pre-amplifier. The second one contains a microcontroller with peripherals for data saving and transmission. Usually the specialized software is applied for the signal acquisition and digital signal processing (filtering, spectral analysis and others). This paper presents an overview of methods used in cardiac auscultation and expected developing path in the future. It also contains the description of our digital stethoscope system, which is planned to be used in poliphysiographical studies.
Author Katarzyna Pariaszewska
Katarzyna Pariaszewska,,
, Marcel Młyńczak
Marcel Młyńczak,,
, Wiktor Niewiadomski
Wiktor Niewiadomski,,
, Gerard Cybulski (FM / IMBE)
Gerard Cybulski,,
- The Institute of Metrology and Biomedical Engineering
Publication size in sheets0.3
Book Romaniuk Ryszard (eds.): Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2013, vol. 8903, 2013, SPIE P.O. Box 10, Bellingham, Washington 98227-0010 USA , SPIE, ISBN 9780819497857, [ISSN 0277-786X ], 410 p., DOI:10.1117/12.2049644
Keywords in EnglishAmplifiers ; Blood ; Computer hardware ; Digital signal processing ; Diseases and disorders ; Heart ; Medical diagnostics ; Microcontrollers ; Microelectronics ; Software
Languageen angielski
Score (nominal)15
Score sourceconferenceIndex
ScoreMinisterial score = 10.0, 29-08-2020, BookChapterMatConfByIndicator
Ministerial score (2013-2016) = 15.0, 29-08-2020, BookChapterMatConfByIndicator
Publication indicators WoS Citations = 1; GS Citations = 5.0
Citation count*5 (2020-09-11)
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