Self-localization of necrosis formation in tissue with tumor due to tissue response to local strong heating

Ihor A. Lubashevsky; Alexander V. Priezzhev; Vasyl V. Gafiychuk; Bogdan Datsko

doi:10.1117/12.472531

27 June 2002 Self-localization of necrosis formation in tissue with tumor due to tissue response to local strong heating

Ihor A. Lubashevsky, Alexander V. Priezzhev, Vasyl V. Gafiychuk, Bogdan Datsko

Author Affiliations +

Proceedings Volume 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical; (2002) https://doi.org/10.1117/12.472531
Event: International Symposium on Biomedical Optics, 2002, San Jose, CA, United States

Abstract

We analyze the necrosis growth due to thermal coagulation induced by laser light absorption and limited by heat diffusion into the surrounding live tissue. The tissue is assumed to contain a certain tumor in the undamaged tissue whereof the blood perfusion rate does not change during the action. By contrast, the normal tissue responds strongly to increase in the tissue temperature and the blood perfusion rate can grow by tenfold. We study in detail the necrosis formation under conditions typical for a real course of thermal therapy treatment, the duration of the action is taken about 5 minutes when a necrosis domain of size about or above 1 cm is formed. In particular, if the tumor size is sufficiently large, it is about 1 cm, and the tissue response is not too delayed, the delay time does not exceed 1 min, then there are conditions under which the relative volume of the damaged normal tissue is small in comparison with the tumor volume after the tumor is coagulated totally.

Citation Download Citation

Ihor A. Lubashevsky, Alexander V. Priezzhev, Vasyl V. Gafiychuk, and Bogdan Datsko "Self-localization of necrosis formation in tissue with tumor due to tissue response to local strong heating", Proc. SPIE 4617, Laser Tissue Interaction XIII: Photochemical, Photothermal, and Photomechanical, (27 June 2002); https://doi.org/10.1117/12.472531

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