What is the bipolar electrode technique for percutaneous radiofrequency ablation (RFA) of liver tumors?

Updated: Mar 30, 2021
  • Author: Badar Bin Bilal Shafi, MBBS, MRCP, FRCR, CCT, EBIR; Chief Editor: Kurt E Roberts, MD  more...
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Answer

With the bipolar electrode technique, the current returns to the generator through the electrode. This eliminates the need to have coupling pads applied to the patient’s thighs. This system was originally designed to use three separate electrodes, placed in close proximity to each other and adjacent to the tumor. Simultaneous application of three applicators is believed to achieve larger volumes of ablation than the use of three consecutively overlapped ablations; it also significantly reduces the time needed to perform the ablation.


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