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ARTICLE |
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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.
