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. 2019 Dec 18;10:121. doi: 10.1186/s13244-019-0801-z

Fig. 10.

Fig. 10

a Axial CT in portal venous phase obtained pretreatment: image shows washout of a 2.5-cm LR-5 observation. Proximity to gallbladder and biliary bifurcation contraindicates radiofrequency ablation. Axial CT in late arterial phase obtained 1 month post percutaneous ethanol ablation: images show (b) hypoenhancement of the treatment area (arrow), with (c) nodular arterial phase hyperenhancement at the upper margin of the treated lesion indicating viable tumor (arrow). The treated observation is categorized LR-TR Viable