ELECTRICAL CHARACTERISTICS OF FLOWING BLOOD

被引：68

作者：

SAKAMOTO, K

KANAI, H

机构：

[1] Department of Electrical and Electronic Engineering, Sophia University, Tokyo

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1979年 / 26卷 / 12期

关键词：

D O I：

10.1109/TBME.1979.326459

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Eryihtocyte orientation, deformation, and axial accumulation cause differences in resistance between flowing and resting blood. Through theoretical calculations and experimental measurements, we studied the effects of these factors and of sinusoidal and pulsatile flow on blood resistivity. The effect of axial accumulation is least significant. Frequency characteristics of blood resistance under sinusoidal and pulsatile flow showed that erythrocytes cannot orient in response to rapid flow changes of a few pulses per second. From dog aorta investigations, we conclude that the orientation effect on impedance plethysmography pulse waveforms nearly equals that of blood vessel diameter change, and that waveform analysis must consider both effects. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.

引用

页码：686 / 695

页数：10

共 14 条

[1] KINETICS OF FLOWING DISPERSIONS .2. EQUILIBRIUM ORIENTATIONS OF RODS AND DISCS (THEORETICAL) [J].