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Fig. 1. Radiofrequency ablation (RFA) for hepatocellular carcinoma (HCC) using multiple electrodes and no-touch ablation technique. (A) Gadoxetic acid enhanced arterial phase axial magnetic resonance (MR) image shows a 1.5-cm sized enhancing nodular lesion in segment VIII dome of the liver (arrow). (B) This nodule shows low signal intensity on hepatobiliary phase (arrow) indicating HCC. (C) On B-mode ultrasound image, target tumor appears as low echoic nodular lesion. (D) Three electrodes are inserted into the outside of target tumor boundary, and two of them are shown (T, target tumor; and white arrow, electrode tip). (E) After the delivery of RF energy, the echo-cloud complex is created, completely encompassing the target tumor. (F) There is no local tumor progression on portal venous phase axial gadoxetic acid enhanced liver MR image obtained 3 years after no touch RFA.
Int J Gastrointest Interv 2021;10:169~174 https://doi.org/10.18528/ijgii210050
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