Analysis of nonlinear behavior in cardiac QRS-waves integral / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 367-370, 2005.
Article
in Zh
| WPRIM
| ID: wpr-354297
Responsible library:
WPRO
ABSTRACT
QRS-waves integral can reflect the activities of ventricular depolarization. In this paper are analyzed the nonlinear characters in QRS-waves integral: reconstructing state space with these integral signals after nonlinear noise reduction, calculating its attractor dimension and the largest Lyapunov exponents. With the results based on MIT-BIH database we proposed that QRS-waves integral is of chaos nature. When compased with HRV nonlinear analysis, QRS-waves integral analysis was found to be of more advantages in some cases such as premature ventricular contraction. This QRS-waves integral nonlinear analysis may be of use in evaluating clinical cardiac function.
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WPRIM
Main subject:
Signal Processing, Computer-Assisted
/
Nonlinear Dynamics
/
Electrocardiography
Limits:
Humans
Language:
Zh
Journal:
Journal of Biomedical Engineering
Year:
2005
Type:
Article