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Figure 3: A 51-year-old woman with hepatic metastasis of colonic carcinoma. Preoperative T2-weighted imaging (a) shows a high-signal lesion in the right of the liver. Intraoperative T2-weighted imaging (b) shows the deployed radiofrequency electrode wrapped around the lesion. T1-weighted imaging after ablation (c) shows a gap in the high-signal ring. Two rounds of supplementary ablation (d). Postoperative T1-weighted imaging (e) shows ablation lesions. T2-weighted imaging (f) shows the adjacent vessel significant enlargement (arrow). Recurrent lesions after operation showing a long-T1 (g), long-T2 signal (h)

Figure 3: A 51-year-old woman with hepatic metastasis of colonic carcinoma. Preoperative T2-weighted imaging (a) shows a high-signal lesion in the right of the liver. Intraoperative T2-weighted imaging (b) shows the deployed radiofrequency electrode wrapped around the lesion. T1-weighted imaging after ablation (c) shows a gap in the high-signal ring. Two rounds of supplementary ablation (d). Postoperative T1-weighted imaging (e) shows ablation lesions. T2-weighted imaging (f) shows the adjacent vessel significant enlargement (arrow). Recurrent lesions after operation showing a long-T1 (g), long-T2 signal (h)