Positioning and Averaging of Phonocardiographic Signals Based on the Matching Pursuit Method

Author

Zhang, Zuxing ; Tang, Yibin ; Yang, Xiumei ; Liu, Jun ; Fang, Libin ; Ji, Yuanxia ; Wang, WeiLian

Author_Institution

Sch. of Inf. Sci. & Eng., Yunnan Univ., Kunming

Volume

2

fYear

0

fDate

0-0 0

Firstpage

10370

Lastpage

10374

Abstract

Heart sounds are highly valuable to cardiovascular diseases in clinical diagnoses. So the analysis of phonocardiogram (PCG) is helpful in the field. It is significant to position heart sounds in time domain accurately and automatically. A time-frequency transformation based on matching pursuit method (MPM) is developed for the PCG. The method was applied to 60 cardiac cycles. It positioned the first (SI) and the second (S2) heart sounds automatically. Also their averages were calculated. The results show that MPM gives a correct detection rate up to 93.3%. The processing is real-time. The method can eliminate electrocardiogram (ECG) as time-reference signal and reduce hardware overheads. It is independent of subjective human judgment and robust to artifacts, background noise and other interferences

Keywords

cardiology; diseases; medical signal processing; cardiovascular diseases; heart sounds; matching pursuit method; phonocardiography signal averaging; phonocardiography signal positioning; time-frequency transformation; Background noise; Cardiovascular diseases; Electrocardiography; Hardware; Heart; Humans; Interference; Matching pursuit algorithms; Noise robustness; Time frequency analysis; Heart sound; Matching Pursuit Method; Phonocardiogram; Positioning and averaging;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on

Conference_Location

Dalian

Print_ISBN

1-4244-0332-4

Type

conf

DOI

10.1109/WCICA.2006.1714034

Filename

1714034