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
收藏
页码：1811 / 1813
页数：3
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