TY  - JOUR
AU  - Martusevich, Andrew K.
AU  - Petrov, Sergey V.
AU  - Galka, Alexander G.
AU  - Golygina, Elena S.
T1  - The Study of Dielectric Properties of Biological Tissue under Thermal Modification in vitro 
JO  - Journal of Stress Physiology & Biochemistry
Y1  - 2019
VL  - 15
IS  - 1
SP  - 41
EP  - 45
UR  - http://www.jspb.ru/issues/2019/N1/JSPB_2019_1_41-45.pdf

KW  - Palmar aponeurosis
KW  - thermal modification
KW  - near-field resonance microwave sensing
KW  - dielectric permittivity
KW  - thermal stress

U1  - 1997-0838




N2  - The aim of this paper is to study the dynamics of the dielectric properties of the tissue in the experimental controlled thermal modification. Material and methods: the experiment was performed on equal in volume and mass samples of intraoperatively removed tissue of Palmar aponeurosis (n=8). The thermal effect was simulated by placing tissue fragments in a thermostat (processing time – 5 min., temperature – 60 C). Duration of exposure after thermal modification was 5 min. Dielectric properties of tissues was determined using an original hardware-software complex for near-field resonant microwave sensing. Results: the study made it possible to verify the shifts in dielectric properties of the tissue that occur under short-term exposure to high temperature in vitro. It is shown that the dielectric permeability and conductivity of the biological object are significantly reduced under the influence of this factor, which is primarily due to a decrease of its hydration degree.
ER  -