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conclusion

Wet-bipolar RF techniques seem to be promising especially for kidney, spine, and difficult liver lesions. We propose a bipolar method for creating larger, faster and more controllable lesions. The bipolar method reduces treatment time. Furthermore when a tumor is localized near sensible structures (Bowel, nerve root), the necrosis is well limited between the probes and accidental coagulation of the nearby organs can be easily avoided. Insertion of two parallel probes can be difficult in some cases. The best results are obtained when the probes are parallel together and the tumor is limited in between.