Detection of features of prosthetic cardiac valve sound by spectrogram analysis

Soeta Yoshiharu; Bito Yasuyuki

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Detection of features of prosthetic cardiac valve sound by spectrogram analysis

机译：频谱图分析检测人工心脏瓣膜声音特征

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摘要

Prosthetic cardiac valve sounds are thought to be useful for evaluating valve function. In a previous report, we showed that a stethoscope with a small microphone inserted in its tube could be used to record mechanical cardiac valve sounds in daily medical care. In this study, we used such a stethoscope to record prosthetic cardiac valve sounds and analyzed the sounds by spectrogram. The results indicated that mechanical cardiac valve sounds are well characterized by the high frequency components of the spectrogram. (C) 2014 Elsevier Ltd. All rights reserved.

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来源
《Applied Acoustics》 |2015年第3期|28-33|共6页
作者
Soeta Yoshiharu; Bito Yasuyuki;
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作者单位

Natl Inst Adv Ind Sci & Technol, Hlth Res Inst, Ikeda, Osaka 5638577, Japan;

Osaka City Univ, Grad Sch Med, Dept Cardiovasc Surg, Abeno, Osaka 5458585, Japan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
Prosthetic cardiac valve; Mechanical valve; Short-time Fourier transform;

机译：人工心脏瓣膜;机械瓣膜;短时傅立叶变换;

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专利

1. Spectral analysis of heart valve sound for detection of prosthetic heart valve diseases [J] . Kim Sang Hyun, Lee Hee Jong, Huh Jae Man, Yonsei Medical Journal . 1998,第4期

机译：心脏瓣膜声音的频谱分析以检测人工心脏瓣膜疾病
2. Time-frequency analysis of the first heart sound: Part 3: Application to dogs with varying cardiac contractility and to patients with mitral mechanical prosthetic heart valves. [J] . Chen D, Durand LG, Lee HC, Medical and Biological Engineering and Computing: Journal of the International Federation for Medical and Biological Engineering . 1997,第5期

机译：第一种心音的时频分析：第3部分：适用于心脏收缩力不同的狗以及二尖瓣机械性人工瓣膜患者。
3. Sound pressure analysis for the early detection of prosthetic valve obstruction. [J] . Horstkotte D, Piper C The Journal of heart valve disease . 2011,第4期

机译：声压分析可及早发现人工瓣膜阻塞。
4. Spectral Analysis of Heart Sounds Produced by Disorder Mechanical Prosthetic Heart Valves [C] . Zhang Di, He Jiazhong, Yao Jianping, International Conference on Biomedical Engineering and Informatics;BMEI '09 . 2009

机译：机械假体心脏瓣膜产生的心音的频谱分析
5. Stress analysis of bio prosthetic tricuspid heart valve stents. [D] . Lahir, Jian Y. 2007

机译：生物假体三尖瓣心脏瓣膜支架的应力分析。
6. FFT Techniques for the Spectral Analysis of Prosthetic Heart Valve Sounds [O] . L.-G. Durand, J. de Guise, R. Guardo 1980

机译：人工心脏瓣膜声音频谱分析的FFT技术
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8. Detection of First and Second Cardiac Sounds Based on Time Frequency Analysis. [R] . Santos, M. A., Souza, M. N. 2001

机译：基于时频分析的第一和第二心音检测。

Detection of features of prosthetic cardiac valve sound by spectrogram analysis

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