IMPLICATIONS OF THE DIELECTRICAL BEHAVIOR OF HUMAN BLOOD FOR CONTINUOUS ONLINE MEASUREMENT OF HEMATOCRIT

被引：12

作者：

DEVRIES, PMJM ^{[1
]}

LANGENDIJK, JWG ^{[1
]}

KOUW, PM ^{[1
]}

VISSER, V ^{[1
]}

SCHNEIDER, H ^{[1
]}

机构：

[1] FREE UNIV AMSTERDAM HOSP,DEPT MED PHYS,1007 MB AMSTERDAM,NETHERLANDS

来源：

MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING | 1993年 / 31卷 / 05期

关键词：

BLOOD VOLUME; ELECTRICAL ADMITTANCE; EXTRACELLULAR CONDUCTIVITY; HEMATOCRIT; HIGH-FREQUENCY ADMITTANCE; INTRACELLULAR CONDUCTIVITY; LOW-FREQUENCY ADMITTANCE; PHASE ANGLE;

D O I：

10.1007/BF02441978

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A study was designed to explore the possibility of detecting the haematocrit of blood by means of admittance measurements. The admittance and phase angle of blood kept in a measuring cell were determined at various frequencies between 60 kHz and 24 MHz. A reliable and accurate estimation of haematocrit was obtained in two ways. First, low-frequency admittance, high-frequency admittance and a factor x, which was the conductive percentage of cell content, were used. Secondly, the maximum phase angle was used. Both methods can be applied to obtain continuous on-line information about haematocrit for blood volume control during haemodialysis.

引用

页码：445 / 448

页数：4

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