ORIGIN OF CHANGES IN THE EPIGASTRIC IMPEDANCE SIGNAL AS DETERMINED BY A 3-DIMENSIONAL MODEL

被引：11

作者：

KOTHAPALLI, B

机构：

[1] Department of Electrical Engineering, Monash University, Caulfield

来源：

IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING | 1992年 / 39卷 / 10期

关键词：

D O I：

10.1109/10.161332

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 [生物医学工程];

摘要：

The impedance technique can be used for the non-invasive monitoring of the stomach, with the epigastric impedance signal being a function of the position and configuration of the electrodes. The changes observed could be due to meal resistivity, meal volume and contractions of the gastric smooth muscles. The effect of these various factors on the epigastric impedance signal was determined for several electrode configurations using a three-dimensional model of the abdomen. When the voltage sensing electrodes are located close to the current electrodes, the signal varies linearly with meal volume. The relationship between meal resistivity and the epigastric impedance signal is nonlinear. The impedance signal varies linearly with the contractions of the circular smooth muscles of the stomach.

引用

页码：1005 / 1010

页数：6

共 20 条

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[2]

IMPEDANCE PLETHYSMOGRAPHY - THE ORIGIN OF ELECTRICAL-IMPEDANCE CHANGES MEASURED IN THE HUMAN CALF [J].