Impedance measurements during simulated blood flow

It is determined how impedance is affected by hematocrit, conductivity and electrode configuration in a continuous flow system in vitro. Four-electrode measurements have robust characteristics which require constant geometry but do not require uniform fields or rigid positioning. Findings show that...

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Bibliographic Details
Published inImages of the Twenty-First Century. Proceedings of the Annual International Engineering in Medicine and Biology Society p. 1232 vol.4
Main Authors Hause, L.L., Gayon, F.A., Aleksza, M.E.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1989
Subjects
Biological materials
Biomedical electrodes
Biomedical measurements
Blood flow
Conductivity measurement
Fluid flow measurement
Geometry
Impedance measurement
Medical simulation
Robustness
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Summary:It is determined how impedance is affected by hematocrit, conductivity and electrode configuration in a continuous flow system in vitro. Four-electrode measurements have robust characteristics which require constant geometry but do not require uniform fields or rigid positioning. Findings show that the ratio of red blood cell conductivity to electrolyte conductivity is important in the pattern impedance versus hematocrit.< >
DOI:10.1109/IEMBS.1989.96169