Nondiffusive heat propagation in tissue under local strong heating

Ihor A. Lubashevsky; Eugene Davydov; Valeriy Milyaev; Ramil Musin

doi:10.1117/12.472530

27 June 2002 Nondiffusive heat propagation in tissue under local strong heating

Ihor A. Lubashevsky, Eugene Davydov, Valeriy Milyaev, Ramil Musin

Proceedings Volume 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical; (2002) https://doi.org/10.1117/12.472530
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

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.

Citation Download Citation

Ihor A. Lubashevsky, Eugene Davydov, Valeriy Milyaev, and Ramil Musin "Nondiffusive heat propagation in tissue under local strong heating", Proc. SPIE 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical, (27 June 2002); https://doi.org/10.1117/12.472530

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