Title :
Effect of blood´s velocity on blood resistivity
Author :
Xie, Tuqiang ; Tjin, Swee Chuan ; Yang, Qingping ; Ng, Seng Lee
Author_Institution :
Dept. of Manuf. & Eng. Syst., Brunel Univ., Uxbridge, UK
fDate :
10/1/1998 12:00:00 AM
Abstract :
Blood resistivity is an important quantity whose value influences the results of various methods used in the study of heart and circulation. In this paper, the relationship between blood resistivity and velocity of blood flow was evaluated and analyzed based upon a probe using six-ring electrodes and a circulatory model. The experimental results indicated that the change in blood resistivity was only ±1.1% when the velocity of blood flow changed from 2.83 to 40 cm/s and it rose to 23% when the velocity was lower than 2.83 cm/s
Keywords :
bioelectric phenomena; biomedical electrodes; blood flow measurement; cardiovascular system; electrical conductivity measurement; haemodynamics; 0 to 40 cm/s; blood flow velocity; blood resistivity; circulatory model; pig blood; probe; six-ring electrodes; Blood flow; Blood vessels; Conductivity measurement; Electrodes; Heart; Humans; Impedance measurement; Plasma measurements; Probes; Shape;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
