%0 Journal Article
%T Investigation of nonlinear temperature distribution in biological tissues by using bioheat transfer equation of Pennes¡¯ type
%A Ahmed Lakhssassi
%A Emmanuel Kengne
%A Hicham Semmaoui
%J Natural Science
%P 131-138
%@ 2150-4105
%D 2010
%I Scientific Research Publishing
%R 10.4236/ns.2010.23022
%X In this paper, a two level finite difference scheme of Crank-Nicholson type is constructed and used to numerically investigate nonlinear temperature distribution in biological tissues described by bioheat transfer equation of Pennes¡¯ type. For the equation under consideration, the thermal conductivity is either depth-dependent or tem-perature-dependent, while blood perfusion is temperature-dependent. In both cases of depth- dependent and temperature-dependent thermal conductivity, it is shown that blood perfusion decreases the temperature of the living tissue. Our numerical simulations show that neither the localization nor the magnitude of peak tempera-ture is affected by surface temperature; however, the width of peak temperature increases with surface temperature.
%K Bioheat Transfer Equation of Pennes Type
%K Pennes¡¯ Bioheat Transfer Equation
%K Modified Crank-Nicholson Method
%K Two-Level Finite     Difference Scheme
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=1558