919650.fig.002a
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919650.fig.002b
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919650.fig.002c
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919650.fig.002d
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Figure 2: Sequential US images of benign thyroid nodules. (a), (b). Transverse (a) and longitudinal (b) US images show a predominantly solid nodule in the right lobe. The volume before treatment was 35 mL. (c). A transverse US image shows ablation of the periphery of a deep and remote portion of the nodule. The needle was inserted through the isthmus. (d). The transverse US image shows relocation of the electrode tip in the more central, untreated area. The second and third sessions of the RF ablation were performed within a one-year interval (not shown). (e), (f). Transverse US images one (e) and three-and-half (f) years following the initial RF ablation show progressive volume reduction. The final volume was 0.2 mL.