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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.
Artigo em Chinês | WPRIM | ID: wpr-354297
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.
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Processamento de Sinais Assistido por Computador / Dinâmica não Linear / Eletrocardiografia Limite: Humanos Idioma: Chinês Revista: Journal of Biomedical Engineering Ano de publicação: 2005 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Processamento de Sinais Assistido por Computador / Dinâmica não Linear / Eletrocardiografia Limite: Humanos Idioma: Chinês Revista: Journal of Biomedical Engineering Ano de publicação: 2005 Tipo de documento: Artigo