Numerical simulation of blood vascularization influence in microwave ablation

Author

De Santis, V. ; Feliziani, M. ; Maradei, Francesca

Author_Institution

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

fYear

2011

Firstpage

357

Lastpage

360

Abstract

A simulation of tumour ablation in liver tissue is presented. The ablation is produced by a thin coaxial antenna excited at microwave (MW) frequency. The electromagnetic field and the specific absorption rate (SAR) are calculated by the finite element method. Then, the thermal bio-heat equation (BHE) is solved by assuming the SAR as heat source. The presence of blood vessels in the examined domain is investigated by considering the convection-diffusion BHE. Some test cases are finally proposed to evaluate the influence of the blood velocity on the temperature distribution.

Keywords

biothermics; blood vessels; finite element analysis; haemodynamics; microwave antennas; microwave heating; tumours; blood vascularization; blood velocity; convection diffusion BHE; electromagnetic field; finite element method; liver tissue; microwave ablation; microwave frequency; specific absorption rate; temperature distribution; thermal bioheat equation; thin coaxial antenna; tumour ablation; Antennas; Biological tissues; Blood; Electromagnetic heating; Mathematical model; Tumors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility (EMC), 2011 IEEE International Symposium on

Conference_Location

Long Beach, CA, USA

ISSN

2158-110X

Print_ISBN

978-1-4577-0812-1

Type

conf

DOI

10.1109/ISEMC.2011.6038336

Filename

6038336