Detection of the Third Heart Sound Using Hilbert-Huang Transform

被引：0

作者：

Tseng, Y. L. ^{[1
]}

Lin, K. S. ^{[2
]}

Ko, P. Y. ^{[2
]}

Jaw, F. -S. ^{[1
]}

机构：

[1] Natl Taiwan Univ, Inst Biomed Engn, Taipei 10764, Taiwan

[2] Natl Taiwan Univ, Dept Elect Engn, Taipei 10764, Taiwan

来源：

WORLD CONGRESS ON MEDICAL PHYSICS AND BIOMEDICAL ENGINEERING, VOL 25, PT 4: IMAGE PROCESSING, BIOSIGNAL PROCESSING, MODELLING AND SIMULATION, BIOMECHANICS | 2010年 / 25卷

关键词：

the third heart sound; Hilbert-Huang transform;

D O I：

暂无

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Existence of the third heart sound is an indication of heart failure. In this paper, a novel method is proposed to detect the presence of the third heart sound. A time-frequency analysis method, Hilbert-Huang transform, was used to decompose the signal adaptively and to acquire the instantaneous frequency. Further extraction of the maximal instantaneous frequency and its magnitude is performed to a heart sound signal to distinguish the third heart sound which is usually with lower frequency as well as lower amplitude. A frequency-magnitude distribution was plotted, and the results showed the difference between a normal heart sound and a heart sound with the third heart sound.

引用

页码：1811 / 1813

页数：3

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