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. © 2011 IEEE.
Numerical simulation of blood vascularization influence in microwave ablation / Valerio De, Santis; Mauro, Feliziani; Maradei, Francescaromana. - STAMPA. - (2011), pp. 357-360. (Intervento presentato al convegno 2011 IEEE International Symposium on Electromagnetic Compatibility, EMC 2011 tenutosi a Long Beach, CA nel 14 August 2011 through 19 August 2011) [10.1109/isemc.2011.6038336].
Numerical simulation of blood vascularization influence in microwave ablation
MARADEI, Francescaromana
2011
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. © 2011 IEEE.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
