Title :
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
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;
Conference_Titel :
Engineering in Medicine and Biology Society, 2003. Proceedings of the 25th Annual International Conference of the IEEE
Print_ISBN :
0-7803-7789-3
DOI :
10.1109/IEMBS.2003.1280436
