Temperature Distributions for Regional Hypothermia Based on Nonlinear Bioheat Equation of Pennes Type: Dermis and Subcutaneous Tissues

• 作者: Ahmed Lakhssassi Emmanuel Kengne Rémi Vaillancourt
• 来源期刊: 应用数学(英文)
• 学科: 医学
• 关键词: REGIONAL HYPOTHERMIA DERMIS and SUBCUTANEOUS Tissues JACOBI Elliptic Functions TEMPERATURE-DEPENDENT Blood Perfusion
• 年，卷（期）: 2012,（3）
• 页码范围: 217-224
• 页数: 8页
• 分类号: R73

摘要

We have used a nonlinear one-dimensional heat transfer model based on temperature-dependent blood perfusion to predict temperature distribution in dermis and subcutaneous tissues subjected to point heating sources. By using Jacobi elliptic functions, we have first found the analytic solution corresponding to the steady-state temperature distribution in the tissue. With the obtained analytic steady-state temperature, the effects of the thermal conductivity, the blood perfusion, the metabolic heat generation, and the coefficient of heat transfer on the temperature distribution in living tissues are numerically analyzed. Our results show that the derived analytic steady-state temperature is useful to easily and accurately study the thermal behavior of the biological system, and can be extended to such applications as parameter measurement, temperature field reconstruction and clinical treatment.