Influence of pressure on the photo-thermal effects of porcine skin

Wei Gong; Shusen Xie; Hui Li; Xianzheg Zhang

doi:10.1117/12.757095

11 January 2008 Influence of pressure on the photo-thermal effects of porcine skin

Wei Gong, Shusen Xie, Hui Li, Xianzheg Zhang

Proceedings Volume 6826, Optics in Health Care and Biomedical Optics III; 68260S (2008) https://doi.org/10.1117/12.757095
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Intense pulsed light system in combination with contact cooling is a useful tool for treating photodamaged skin. It can emit broadband light, and target different kind of pigment in skin. But the pressure on skin often influences the temperature field distribution inside the skin when the treatment head contacts skin. In this paper, we assumed the pressure on skin would cause the changes of thermal diffusivity and optical absorption coefficient. Under these assumptions, the temperatures inside skin induced by intense pulsed light system with contact cooling were modeled using Monte Carlo method and explicit finite difference bioheat conduction equation. The results suggest that pressure imposed on skin surface should be taken into account when using pulsed light system with contact cooling to treat lesions inside the skin.

Citation Download Citation

Wei Gong, Shusen Xie, Hui Li, and Xianzheg Zhang "Influence of pressure on the photo-thermal effects of porcine skin", Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 68260S (11 January 2008); https://doi.org/10.1117/12.757095

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KEYWORDS

Skin

Tissue optics

Absorption

Temperature metrology

Monte Carlo methods

Thermography

Cooling systems

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