In the present paper we present some results of our research on the RFTA (Radio Frequency Thermal Ablation) simulation: in particular the steps performed for the validation of the numerical model. We performed a series of RFTA experiments on pig liver tissue as accurate as possible, at different powers, measuring the time evolution of temperature in selected points and impedances, to be taken as a reference to compare the output of different numerical models. We present the results obtained with a basic simulation model (shortly described) assessing the need to account for the change of the tissue electrical resistivity with temperature. We then underline the need of getting a deeper insight in the phenomena that bring to the power suspension thus limiting the extension of the necrotized tissue. At the end we suggest a line for the future development of the research
On the simulation of radio frequency thermal lesions in porcine liver
GALLATI, MARIO;BRASCHI, GIOVANNI
2013-01-01
Abstract
In the present paper we present some results of our research on the RFTA (Radio Frequency Thermal Ablation) simulation: in particular the steps performed for the validation of the numerical model. We performed a series of RFTA experiments on pig liver tissue as accurate as possible, at different powers, measuring the time evolution of temperature in selected points and impedances, to be taken as a reference to compare the output of different numerical models. We present the results obtained with a basic simulation model (shortly described) assessing the need to account for the change of the tissue electrical resistivity with temperature. We then underline the need of getting a deeper insight in the phenomena that bring to the power suspension thus limiting the extension of the necrotized tissue. At the end we suggest a line for the future development of the researchI documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
