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Development of wireless electronic stethoscope system and abnormal cardiac sound analysis method : sound characteristic waveform analysis

Transactions of the Japan Society of Mechanical Engineers. C Volume 71 Issue 711 Page 3246-3253
published_at 2005-11
2010010187.pdf
[fulltext] 1010 KB
Title
ワイヤレス電子聴診システムと異常心音解析法の開発 : 心音特徴値波形の抽出と解析法
Development of wireless electronic stethoscope system and abnormal cardiac sound analysis method : sound characteristic waveform analysis
Creators Jiang Zhongwei
Creators Choi Samjin
Creator Keywords
cardiac disorder diagnosis wireless electronic stethoscope system audio wireless module characteristic waveform abnormal sound analysis
This paper is concerned with the development of a wireless electric stethoscope system and cardiac sound analytical method for cardiovascular disease diagnosis. This system consists of an electronic stethoscope, data acquiring amplifier/filter circuits, wireless transmitter and receiver modules, and a notebook computer. The cardiac sound acquired by the electronic stethoscope and can be easily transmitted to the computer by wireless transmitter and receiver modules. The input-output characteristics of the electronic stethoscope and wireless modules are investigated in detail. Furthermore, one〜DOF analytical model based on the consideration of the eardrum property is proposed for abnormal cardiac sound analysis. With the analytical model the original heart sound signal can be converted to a simple characteristic waveform which fits the behaviors of some cardiovascular diseases. Some case studies using the characteristic waveforms show that the normal sound can be distinguished visually from the abnormal cases such as the mitral regurgitation, aortic incompetence, allorhythmic pulse and so on.
Languages jpn
Resource Type journal article
Publishers 日本機械学会
Date Issued 2005-11
Rights
Copyright: 日本機械学会 (The Japan Society of Mechanical Engineers)()
File Version Version of Record
Access Rights open access
Relations
[ISSN]0387-5024
[NCID]AN00187463
[isVersionOf] [URI]http://www.jsme.or.jp/publish/ronbun/
Schools 大学院理工学研究科(工学)