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Proceedings Paper

Modeling of thermal effects in Er:YAG laser skin resurfacing
Author(s): Boris Majaron; Primoz Plestenjak; Matjaz Lukac
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Paper Abstract

The influence of Er:YAG laser pulse fluence and duration on temperature profile development, coagulation depth and the ablation threshold in skin resurfacing is analyzed using an original 1D numerical model. The model is focused on the role of mechanical properties of the treated tissue, such as elastic modulus and tensile strength. It combines a thermodynamic model of overhead tissue water with the response of surrounding elastic medium to the resulting pressure increase. Diffusion of dissipated heat is treated in one dimension for the case of isolated tissue surface. Additionally, the nonlinear protein denaturation process is modeled as usual. The results show how the pulse duration influences the depth of heat-affected layer in mid-IR laser skin resurfacing.

Paper Details

Date Published: 22 December 1997
PDF: 7 pages
Proc. SPIE 3192, Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy, (22 December 1997); doi: 10.1117/12.297835
Show Author Affiliations
Boris Majaron, Jozef Stefan Institute (Slovenia)
Primoz Plestenjak, Jozef Stefan Institute (Slovenia)
Matjaz Lukac, Jozef Stefan Institute and Fotona d.d. (Slovenia)

Published in SPIE Proceedings Vol. 3192:
Medical Applications of Lasers in Dermatology, Ophthalmology, Dentistry, and Endoscopy
Gregory B. Altshuler; Reginald Birngruber; Marco Dal Fante; Raimund Hibst; Herbert Hoenigsmann; Neville Krasner M.D.; Frederic Laffitte, Editor(s)

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