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.
Numerical simulation of blood vascularization influence in microwave ablation
DE SANTIS, VALERIO;FELIZIANI, MAURO;
2011-01-01
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.File in questo prodotto:
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