2A2-S08 Development of temperature distribution simulator for RF ablation of liver and validation of accuracy of the simulator in vitro experiment(Surgical Robotics and Mechatronics (1))

Abstract

RF ablation is a treatment for cancer that is becoming accepted because of its less-invasiveness and high-curability. However, precise control of the formation of coagulation zones is difficult for operators due to inadequate imaging modalities. With this in mind, we have proposed a model-based robotic ablation system using numerical simulation to analyze temperature distributions in the organ to overcome this deficiency. The objective of our work is to develop a temperature distribution simulator which can reflect the temperature-dependence of thermophysical properties of organ. From the experiment, it was confirmed that thermal conductivity and specific heat of liver has temperature dependence the temperature distribution simulator has high accuracy.