Nonlinear Dynamic Analysis of Wrist Pulse with Lyapunov Exponents

Author

Yan, Jianjun ; Xia, Chunming ; Wang, Haijun ; Wang, Yiqin ; Guo, Rui ; Li, Fufeng ; Yan, Haixia

Author_Institution

Center for Mechatron. Eng., East China Univ. of Sci. & Technol., Shanghai

fYear

2008

Firstpage

2177

Lastpage

2180

Abstract

The cardiovascular system is complex system containing many nonlinearities. Pulse signals reflect the status of the heart and the vascular system. The chaotic properties of wrist pulse were seldom studied. Lyapunov exponents analysis can estimate the chaotic properties of the system. In this paper the wrist pulse signals of healthy group and coronary heart disease group are analyzed and studied with Lyapunov exponents analysis, and the selection of parameters is discussed. The results indicated that there was difference between two groups of wrist pulse signals, and nonlinear dynamic methods of wrist pulse analysis were helpful for non-destructive inspection of coronary heart disease.

Keywords

Lyapunov methods; biomedical measurement; blood vessels; cardiovascular system; chaos; diseases; nonlinear dynamical systems; Lyapunov exponents; cardiovascular system; chaotic properties; coronary heart disease; nondestructive inspection; nonlinear dynamic analysis; wrist pulse; Arteries; Blood; Cardiac disease; Cardiovascular system; Chaos; Delay effects; Heart; Signal analysis; Time series analysis; Wrist;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on

Conference_Location

Shanghai

Print_ISBN

978-1-4244-1747-6

Electronic_ISBN

978-1-4244-1748-3

Type

conf

DOI

10.1109/ICBBE.2008.874

Filename

4535754