Color spectrographic analysis of the phonocardiogram: a future noninvasive cardiac monitoring technology?

Author

Doyle, D. John ; Gopakumaran, Bala ; Smith, William A.

Author_Institution

Dept. of Gen. Anesthsiology, Cleveland Clinic Found., OH, USA

Volume

3

fYear

2003

fDate

17-21 Sept. 2003

Firstpage

2551

Abstract

After briefly reviewing the state of the art in phonocardiography, this report describes the design and preliminary evaluation of a software-based medical instrument for spectrographic heart sound monitoring. The system uses an ordinary personal computer, an audio amplifier, and an electret microphone that attaches to a precordial stethoscope. In a preliminary clinical evaluation involving 5 subjects, heart sound spectra were easily obtained. We suggest that color spectrographic analysis of the phonocardiogram may become a future noninvasive cardiac monitoring technology.

Keywords

acoustic signal processing; bioacoustics; biomedical equipment; biomedical measurement; cardiology; medical signal processing; patient monitoring; audio amplifier; color spectrogram; color spectrographic analysis; electret microphone; heart sound spectra; noninvasive cardiac monitoring technology; phonocardiogram; phonocardiography; precordial stethoscope; software-based medical instrument; spectrographic heart sound monitoring; Biomedical monitoring; Color; Computerized monitoring; Frequency domain analysis; Heart; Pathology; Patient monitoring; Signal analysis; Stethoscope; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE

ISSN

1094-687X

Print_ISBN

0-7803-7789-3

Type

conf

DOI

10.1109/IEMBS.2003.1280436

Filename

1280436