Nakagami parametric image for evaluation of the degree of thermal denaturation inside porcine liver induced ex vivo by radiofrequency ablation

Abstract In an RF ablation procedure for treating hepatocellular carcinoma and metastatic liver cancer, plucking out antenna from incompletely cauterized tumor tissues can cause neoplastic seeding; hence, it is demanded to properly evaluate the thermal denaturation of tissue before antenna. present ex vivo study, we show that degree inside porcine induced with current heating be evaluated by binarized two-dimensional Nakagami parametric image indicating weighted average shape parameter m . Moreover, pre-Rayleigh distribution dominant in ultrasonic backscattered envelopes obtained tissue, whereas Rayleigh those completely which has coagulative necrosis region. The result indicates change scatterer would occurred caused this study.