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Dynamic Modeling of Tissue Ablation with Continuous Wave CO2 Laser

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2 Author(s)
Zhang Ji-zhuang ; Key Lab. for Thermal Sci. & Power Eng. of Minist. of Educ., Tsinghua Univ., Beijing ; Zhang Xue-xue

To better understand the process of CO2 laser tissue ablation, a dynamic model was proposed, which consisted of (1) calculations of temperature distribution using finite difference heat transfer model and thermal damage distribution using Arrhenius equation, (2) a procedure of dividing laser-irradiated tissue into multi-zones according to the temperature and thermal damage distribution, and (3) calculations of variable parameters of each zone. Simulations were performed with a laser power of 10 W/mm2. Evolutions of the surface temperature and each zone were obtained. The results of this study indicate our model is a powerful tool for improving the understandings of laser tissue ablation.

Published in:

Bioinformatics and Biomedical Engineering, 2007. ICBBE 2007. The 1st International Conference on

Date of Conference:

6-8 July 2007