Fiber-Optic Temperature and Pressure Sensors Applied to Radiofrequency Thermal Ablation in Liver Phantom: Methodology and Experimental Measurements

Figure 15

Temperature reported as a function of distance from the ablation tip, for the RFA experiment reported in Figure 14. The instantaneous temperature is reported with 10 s time interval, during the temperature rise phase; data are spatially averaged over the 8 radii. Red curves show the initial rapid heating with a quadratic trend, which reduces to an approximately linear rise (blue). After reaching a plateau, the thermal field increases the depth of penetration (black), until reaching the final stage (green).