Abstract:

Reduction of blood fluidity is an important risk factor for atherosclerosis and cardiovascular diseases. Frequent examination of blood fluidity has a great significance on prevention of cardiovascular diseases. A hemodynamic model of the vascular system of the upper limb was established. Based on the analysis of the decay of arterial static pressure, the blood fluidity index F was used to represent the blood fluidity in vivo. Using a function approximation method, the blood fluidity index F was calculated. Results of the experiment indicated that the method and the measurement system had  good reproducibility and  performed  well in terms of  sensitivity and  specificity.

Key words:  blood fluidity, noninvasive, in vivo