THE 4-ELECTRODE RESISTIVITY TECHNIQUE IN ANISOTROPIC MEDIA - THEORETICAL-ANALYSIS AND APPLICATION ON MYOCARDIAL TISSUE IN-VIVO

被引：88

作者：

STEENDIJK, P ^{[1
]}

MUR, G ^{[1
]}

VANDERVELDE, ET ^{[1
]}

BAAN, J ^{[1
]}

机构：

[1] DELFT UNIV TECHNOL,FAC ELECT ENGN,DEPT ELECT ENGN,ELECTROMAGNET RES LAB,DELFT,NETHERLANDS

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1993年 / 40卷 / 11期

关键词：

D O I：

10.1109/10.245632

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Several aspects of the four-electrode resistivity technique were studied with special emphasis on the theoretical determination of penetration depth and sample volume in anisotropic media such as (cardiac) muscle. Moreover, the presence of a thin disturbing layer on top of the medium under study was analyzed. A four-electrode sensor was developed for the measurement of local myocardial resistivity in two orthogonal directions. The sensor was applied to the epicardium of anesthetized open chest dogs and, as an example, results are given on the frequency dependence (5-60 kHz) and the changes during the cardiac cycle of longitudinal and transverse myocardial resistivity.

引用

页码：1138 / 1148

页数：11

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