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Blood Impedance Characterization from Pulsatile Measurements School of Information Technology
 

Summary: Blood Impedance Characterization from Pulsatile Measurements
Tao Dai
School of Information Technology
and Engineering (SITE),
University of Ottawa, Canada
e-mail: tdai@site.uottawa.ca
Andy Adler
School of Information Technology
and Engineering (SITE),
University of Ottawa, Canada
e-mail: adler@site.uottawa.ca
Abstract
This paper describes an in vivo measurement technique to calculate di-
electric properties of blood excluding the contributions from surround-
ing tissues, based on analysis of the pulsatile component bioimpedance
spectroscopy data. A tetrapolar electrode system applied on the fin-
gers is simulated by a pspice equivalent circuit, and current is injected
with frequency ranging from 5 kHz to 100 MHz. The finger is modeled
as three parts: arterial blood, surrounding tissues and incremental in-
fused arterial blood during systole. The pulsatile curve is fitted to a

  

Source: Adler, Andy - Department of Systems and Computer Engineering, Carleton University

 

Collections: Computer Technologies and Information Sciences