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Temperature dependent dielectric spectroscopy of muscle tissue phantom

Published online by Cambridge University Press:  19 March 2020

Ondrej Fiser Open the ORCID record for Ondrej Fiser [Opens in a new window] ,
Sebastian Ley ,
Marko Helbig ,
Jürgen Sachs ,
Michaela Kantova  and
Jan Vrba
Ondrej Fiser*
Affiliation:
Department of Biomedical Technology, Faculty of Biomedical Engineering, CTU in Prague, Prague, Czech Republic
Sebastian Ley
Affiliation:
Faculty of Computer Science and Automation, Institute of Biomedical Engineering and Informatics, TU Ilmenau, Ilmenau, Germany
Marko Helbig
Affiliation:
Faculty of Computer Science and Automation, Institute of Biomedical Engineering and Informatics, TU Ilmenau, Ilmenau, Germany
Jürgen Sachs
Affiliation:
Ilmsens GmbH, Ilmenau, Germany
Michaela Kantova
Affiliation:
Department of Electromagnetic Field, Faculty of Electrical Engineering, CTU in Prague, Prague, Czech Republic
Jan Vrba
Affiliation:
Department of Electromagnetic Field, Faculty of Electrical Engineering, CTU in Prague, Prague, Czech Republic
*
Author for correspondence: Ondrej Fiser, E-mail: Ondrej.fiser@fbmi.cvut.cz
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Abstract

The temperature dependence of the dielectric parameters of tissues and tissue-mimicking phantoms is very important for non-invasive temperature measurement in medical applications using microwaves. We performed measurements of this dependence in the temperature range of 25–50°C using distilled water as a reference liquid commonly used in dielectric property studies. The results were compared with the literature model in the frequency range of 150–3000 MHz. Using this method, the temperature dependence of dielectric parameters of a new muscle tissue-mimicking phantom based on agar, polyethylene powder, and polysaccharide material TX-151 was measured in the temperature range of 25–50°C. The temperature dependence of the dielectric properties of this new muscle phantom was fitted to that of the two-pole Cole–Cole model and the deviation of the results between measured and modeled data was quantified.

Keywords

Dielectric spectroscopynon-invasive temperature measurementtemperature dependent dielectric spectroscopytissue phantomsUWB radar
Type
Research Paper
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Special Issue 9: EuMCE 2019 Special Issue (Part I) , November 2020 , pp. 885 - 891
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Copyright
Copyright © Cambridge University Press and the European Microwave Association 2020

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