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Proceedings Paper

Relationship between 578-nm (copper vapor) laser beam geometry and heat distribution within biological tissues
Author(s): Ildar K. Ilyasov; Constantin V. Prikhodko; Alexey J. Nevorotin
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Paper Abstract

Monte Carlo (MC) simulation model and the thermoindicative tissue phantom were applied for evaluation of a depth of tissue necrosis (DTN) as a result of quasi-cw copper vapor laser (578 nm) irradiation. It has been shown that incident light focusing angle is essential for DTN. In particular, there was a significant rise in DTN parallel to elevation of this angle up to +20 degree(s)C and +5 degree(s)C for both the MC simulation and tissue phantom models, respectively, with no further increase in the necrosis depth above these angles. It is to be noted that the relationship between focusing angles and DTN values was apparently stronger for the real target compared to the MC-derived hypothetical one. To what extent these date are applicable for medical practice can be evaluated in animal models which would simulate laser-assisted therapy for PWS or related dermatologic lesions with converged 578 nm laser beams.

Paper Details

Date Published: 18 January 1995
PDF: 6 pages
Proc. SPIE 2323, Laser Interaction with Hard and Soft Tissue II, (18 January 1995); doi: 10.1117/12.199219
Show Author Affiliations
Ildar K. Ilyasov, St. Petersburg Institute of Fine Mechanics and Optics (Russia)
Constantin V. Prikhodko, St. Petersburg Institute of Fine Mechanics and Optics (Russia)
Alexey J. Nevorotin, St. Petersburg Institute of Fine Mechanics and Optics (Russia)

Published in SPIE Proceedings Vol. 2323:
Laser Interaction with Hard and Soft Tissue II
Hans Joerg Albrecht; Guy P. Delacretaz; Thomas H. Meier; Rudolf W. Steiner; Lars Othar Svaasand; Martin J. C. van Gemert, Editor(s)

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