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Computation of intraluminal impedance.

Authors
Type
Published Article
Journal
Physiological measurement
Publication Date
Volume
25
Issue
1
Pages
61–70
Identifiers
PMID: 15005305
Source
Medline
License
Unknown

Abstract

The measurement of the electrical impedance inside the esophagus provides information about its status, and is being explored in the study of the gastroesophageal reflux. This paper presents theoretical computation of impedance inside the esophagus. The results of the numerical solution for a simple geometry are compared against the solution formulated from the Green's function approach. The effect of the electrode configuration on the resulting impedance is studied as an application of the methodology developed in this paper. The results of this paper will be useful in the design of an intraluminal impedance catheter as well as in the interpretation of the resulting impedance signals.

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