Dielectric properties of the tissues with different histological structure: Ex vivo study

Ivan Bocharin; Andrew Martusevich; Vladimir Nazarov; Elena S.  Golygina; Inessa A.  Minenko; Mikhail Yu.  Artamonov

doi:10.18006/2022.10(2).451.455

Authors

Ivan Bocharin Privolzhsky Research Medical University, Nizhny Novgorod, Russia
Andrew Martusevich Sechenov University, Moscow, Russia https://orcid.org/0000-0002-0818-5316
Vladimir Nazarov Sechenov University, Moscow, Russia https://orcid.org/0000-0002-7197-2048
Elena S. Golygina Privolzhsky Research Medical University, Nizhny Novgorod, Russia
Inessa A. Minenko Sechenov University, Moscow, Russia
Mikhail Yu. Artamonov MJA Research and Development, Inc., USA

DOI:

https://doi.org/10.18006/2022.10(2).451.455

Keywords:

Dielectric properties, Biological tissues, Near-field resonance microwave sensing, Dielectric permittivity, Conductivity

Abstract

This study aimed to estimate the dielectric properties of tissues with different histological structures. For this, specimens of fibrous (n=9), muscular (n=7), and fatty (n=11) human tissues were studied. The estimation of dielectric permittivity and conductivity of these specimens was tested with a program and apparatus device for near-field resonance microwave sensing, including 5 applicators with different depths of study. Results of the study demonstrated that this technology can visualize the shape, localization, and linear decisions of biological objects. The currently used method allows distinguishing the tissue histological type. It was stated that fibrous tissue has a maximal level of median and highest dielectric permittivity, and the minimal value of this parameter was fixed for fatty specimens (in 4.26 and 4.53 times lower than in fibrous one, respectively). Muscular tissue has an intermediate value of dielectric permittivity, approaching a level close to fibrous tissue.

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