Fig. 1. Computer tomography (CT) images of a 67-year-old man who underwent radiofrequency ablation (RFA) for a medium-sized hepatocellular carcinoma (HCC) using a cluster electrode with a 2.5-cm active tip. (A) The arterial phase axial CT image 2 days prior to RFA shows a 3.3-cm diameter HCC in hepatic segment VIII (arrow). (B) The portal venous phase axial CT image and (C) coronal CT image 1 hour after RFA show the ablation zone (arrows). The calculated volume of the ablation zone is 40.2 cm³.

Gastrointestinal Intervention 2014;3:98~103 https://doi.org/10.1016/j.gii.2014.09.008

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