You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
25 October 2013Digital stethoscope system: the feasibility of cardiac auscultation
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.
The alert did not successfully save. Please try again later.
Katarzyna Pariaszewska, Marcel Młyńczak, Wiktor Niewiadomski, Gerard Cybulski, "Digital stethoscope system: the feasibility of cardiac auscultation," Proc. SPIE 8903, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2013, 890315 (25 October 2013); https://doi.org/10.1117/12.2032161