System Analysis of Blood Circulation Based on Coherence Power Transfer: From Electrical Driving to Mechanical Vibration

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概要

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• We analyze blood circulation based on the basis of the system viewpoint and coherence power transfer from electrical energy (ECG) to mechanical power (blood pressure wave). The coherent oscillation between the driving signal and the vibration of the cardiovascular system is investigated by coherence function and the perturbations of the system are found. In addition, we develop a mathematical equation to describe the phenomenon. The average peak coherence value $S$ for the first five harmonics is utilized as an index to quantify the power coherence effect. The evaluated $ p$-value ($< 0.01$) reveals that the distinction of power coherence between the healthy subjects and cardiovascular patients is significant. Consequently, we conclude that if the $S$ approaches a value close to one, the output is almost completely attributed to input and fewer perturbation signals influence the system; therefore, the cardiovascular system stays in a better condition. Conversely, if $S$ approaches a value less than one, larger perturbations will worsen the cardiovascular system condition.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2006-04-15

著者

• Wu Lin-kun

  Department Of Communication Engineering National Chiao-tung University

• Wu Lin-Kun

  Department of Communication Engineering, National Chiao Tung University, Hsin Chu 30010, Taiwan

• Lo Pei-Chen

  Department of Electrical and Control Engineering, National Chiao Tung University, Hsin Chu 30010, Taiwan

• Wei Ching-Chuan

  Department of Communication Engineering, National Chiao Tung University, Hsin Chu 30010, Taiwan

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• Spectral Analysis of Blood Circulation Based on the Viewpoint of Resonance
• System Analysis of Blood Circulation Based on Coherence Power Transfer: From Electrical Driving to Mechanical Vibration

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