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Proceedings Paper

Nondiffusive heat propagation in tissue under local strong heating
Author(s): Ihor A. Lubashevsky; Eugene Davydov; Valeriy Milyaev; Ramil Musin
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Paper Abstract

We present preliminary experimental data that enable us to suggest that heat transfer in cellular tissue under local strong heating is a more complex phenomenon than a simple heat diffusion. Namely, we demonstrate that under local strong heating of a muscle tissue heat transfer in it exhibits substantial anisotropy unexplained in the context of the standard diffusion model. The observed temperature dynamics is also characterized by nonlinear behavior as well as by a certain repeat reversibility. The latter means that the time variations in the temperature of a cellular tissue undergoing repeated acts of heating go in the same way at least approximately. We explain the observed anomalous properties of heat transfer by suggesting the flow of the interstitial liquid to appear due to nonuniform heating which, in turn, affects the heat transfer. A possible mechanism responsible for this effect is discussed.

Paper Details

Date Published: 27 June 2002
PDF: 9 pages
Proc. SPIE 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical, (27 June 2002); doi: 10.1117/12.472530
Show Author Affiliations
Ihor A. Lubashevsky, General Physics Institute (Russia)
Eugene Davydov, General Physics Institute (Russia)
Valeriy Milyaev, General Physics Institute (Russia)
Ramil Musin, General Physics Institute (Russia)


Published in SPIE Proceedings Vol. 4617:
Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical
Steven L. Jacques; Donald Dean Duncan; Sean J. Kirkpatrick; Andres Kriete; Donald Dean Duncan; Sean J. Kirkpatrick; Andres Kriete, Editor(s)

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