Prediction of Skin Temperature Distribution in Cosmetic Laser Surgery
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概要
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The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve minimal damage to tissues, the study of the temperature distribution of skin in laser irradiation is very important. The phenomenon of the thermal wave effect is significant due to the highly focused light energy of lasers in very a short time period. The conventional Pennes equation does not take the thermal wave effect into account, which the thermal relaxation time ($\tau$) is neglected, so it is not sufficient to solve instantaneous heating and cooling problem. The purpose of this study is to solve the thermal wave equation to determine the realistic temperature distribution during laser surgery. The analytic solutions of the thermal wave equation are compared with those of the Pennes equation. Moreover, comparisons are made between the results of the above equations and the results of temperature measurement using an infrared thermal image instrument. The thermal wave equation could likely to predict the skin temperature distribution in cosmetic laser surgery.
- 2008-01-25
著者
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Ting Kuen
Department of Mechanical Engineering, Lunghwa University of Science and Technology, No. 300, Sec. 1, Wanshou Rd., Guishan, Taoyuan 333, Taiwan, R.O.C.
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Chang Cheng-Ren
Chang Gung Memorial Hospital, No. 5, Fushing St., Guishan, Taoyuan 333, Taiwan, R.O.C.
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Lin Wen-Shiung
Department of Mechanical Engineering, Lunghwa University of Science and Technology, No. 300, Sec. 1, Wanshou Rd., Guishan, Taoyuan 333, Taiwan, R.O.C.
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Chen Kuen-Tasnn
Department of Applied Mathematics, National Chung Hsing University, No. 250, Kuo Kuang Rd., Taichung 402, Taiwan, R.O.C.
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Cheng Shih-Feng
Department of Applied Mathematics, National Chung Hsing University, No. 250, Kuo Kuang Rd., Taichung 402, Taiwan, R.O.C.