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Quantitative Analysis of Impedance Spectra of Organs during Ischemia
Author(s) -
GHEORGHIU MIHAELA,
GERSING EBERHARD,
GHEORGHIU EUGEN
Publication year - 1999
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.1999.tb09450.x
Subject(s) - electrical impedance , ischemia , chemistry , medicine , cardiology , physics , quantum mechanics
A bstract : We have developed a rapid, quantitative procedure to fit the spectra of the real and imaginary part of tissue impedance, providing characteristic parameters: time constants, their distribution, and the amplitudes of associated dispersions. Based on the time course of tissue impedance during ischemia, we have derived the evolution of characteristic parameters for both myocardial and liver tissue. The similar evolution of the distribution of time constants for myocardial and liver tissue is emphasized and discussed.