A new method for heart sound analysis in time domain.
- Author:
Yuliang HU
1
;
Haibin WANG
;
Jian CHEN
;
Zhongwei JIANG
;
Junxuan QIAO
Author Information
1. Sichuan Provincial Key Laboratory of Signal and Information Processing, School of Electrical and Information Engineering, Xihua University, Chengdu 610039, China. hu99aiai@tom.com
- Publication Type:Journal Article
- MeSH:
Algorithms;
Heart Auscultation;
instrumentation;
methods;
Heart Sounds;
physiology;
Humans;
Phonocardiography;
methods;
Signal Processing, Computer-Assisted
- From:
Journal of Biomedical Engineering
2010;27(2):425-428
- CountryChina
- Language:Chinese
-
Abstract:
In order to discriminate normal and abnormal heart sounds accurately and effectively, a new method is proposed to analyze heart sounds, namely heart sound characteristic waveform (HSCW) method. Digital stethoscope is used to collect heart sound signals. The recorded data are transmitted to a computer by USB interface for analysis based on HSCW, which is extracted from an analytical model of single degree-of-freedom (SDOF). Furthermore, a case study on the normal and abnormal cardiac sounds is demonstrated to validate the usefulness and efficiency of the proposed HSCW method. Besides, in order to test the accuracy of discriminating normal and abnormal heart sounds, 40 normal and 20 abnormal heart sounds are collected and analyzed, the accuracy performances are achieved by 92.5% and 95.0%, respectively.
