Title :
The Specific Resistance of Canine Blood at Body Temperature
Author :
Geddes, L.A. ; Costa, C. P Da
Author_Institution :
Division of Biomedical Engineering, Department of Physiology, Baylor College of Medicine, Houston, Tex. 77025.
Abstract :
The specific resistance (¿) of canine blood, having a hematocrit (H) range extending from 0 to 70 percent, was measured at 37°C and 25 kHz using a variable-length conductivity cell connected to a constant-current impedance bridge. A least-squares exponential fit for the experimentally determined dataprovided the relationship ¿= 56.8e0.025H with a correlation coefficient of 0.989. The data obtained were also fitted to the Maxwell-Fricke equation; an excellent fit was obtained in the range of 0-50 percent hematocrit using a form factor of 2.5.
Keywords :
Biomedical measurements; Blood; Bridge circuits; Cells (biology); Conductivity measurement; Electrodes; Immune system; Impedance measurement; Polarization; Temperature distribution; Animals; Blood Circulation; Blood Flow Velocity; Dogs; Electronics, Medical; Hematocrit; Temperature; Vascular Resistance;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1973.324251
