Instantaneous frequency analysis of systolic murmur for phonocardiogram

Author

Yoshida, Hisashi ; Shino, Hideaki ; Yana, Kazuo

Author_Institution

Dept. of Electron. Syst. & Inf. Eng., Kinki Univ., Osaka, Japan

Volume

4

fYear

1997

fDate

30 Oct-2 Nov 1997

Firstpage

1645

Abstract

This paper proposes the use of instantaneous frequency for the characterization of phonocardiogram, in the range from the first heart sound to systolic heart sound. The data were collected from nation wide phonocardiogram screening of the elementary school children conducted in Japan. We have estimated instantaneous frequency of the phonocardiogram from averaged Wigner-Ville distribution. The data analysis showed a different change of instantaneous frequency between innocent murmur and pathological murmur. It could provide a new method for classifying the systolic murmur into innocent murmur and pathological murmur

Keywords

Wigner distribution; bioacoustics; cardiology; frequency-domain analysis; medical signal processing; signal classification; waveform analysis; averaged Wigner-Ville distribution; first heart sound; innocent murmur; instantaneous frequency analysis; pathological murmur; phonocardiogram; systolic heart sound; systolic murmur; Data analysis; Educational institutions; Electrocardiography; Electrons; Equations; Feature extraction; Frequency estimation; Heart; Pediatrics; Signal analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1997. Proceedings of the 19th Annual International Conference of the IEEE

Conference_Location

Chicago, IL

ISSN

1094-687X

Print_ISBN

0-7803-4262-3

Type

conf

DOI

10.1109/IEMBS.1997.757033

Filename

757033