EMF Exposure: A Numerical Model to Predict the Temperature Increase in Biological Vascularized Tissues

Author

De Santis, Valerio ; Feliziani, Mauro

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of L´´Aquila, L´´Aquila

fYear

2008

fDate

23-24 April 2008

Firstpage

1

Lastpage

4

Abstract

A numerical dosimetry procedure is applied to a biological tissue in order to evaluate the temperature increase produced by RF exposure. The originality of the proposed method regards the application of the bio-heat equation in a vascularized region considering a discrete blood vessel structure which operates as a cooling system in the biological region. First, the blood structure is assumed to be a hydraulic system where a laminate incompressible fluid flows. By this approach the blood velocity in all vessels are computed. Then, the diffusion-convection heat equation is analyzed in a three dimensional domain by a differential numerical method based on the finite difference method. A simple test configuration is finally analysed.

Keywords

biological effects of fields; biothermics; blood vessels; convection; dosimetry; electromagnetic waves; finite difference methods; haemodynamics; laminar flow; EMF exposure; bio-heat equation; biological vascularized tissue; blood velocity; cooling system; diffusion-convection heat equation; discrete blood vessel structure; finite difference method; hydraulic system; laminate incompressible fluid flow; numerical dosimetry; temperature evaluation; Biological tissues; Blood vessels; Cooling; Dosimetry; Equations; Hydraulic systems; Laminates; Numerical models; Radio frequency; Temperature; EMF exposure; biological effects; convection-diffusion heat equation; finite element/finite difference method; numerical dosimetry; numerical modeling;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Techniques, 2008. COMITE 2008. 14th Conference on

Conference_Location

Prague

Print_ISBN

978-1-4244-2137-4

Electronic_ISBN

978-1-4244-2138-1

Type

conf

DOI

10.1109/COMITE.2008.4569906

Filename

4569906