Figures & data
Figure 1. Flow diagram of the study.
Table 1. Clinical characteristics of the enrolled patients with HCC (n = 134).
Figure 2. Images of a 54-year-old male patient with HCC who was treated with RFA. Among the three treated lesions, LTP occurred in one tumour at 9 months after treatment. (A) Conventional axial CT image in the portal phase shows HCC before ablation; (B) conventional axial CT image in the portal phase 1 month after ablation shows complete ablation; (C) conventional axial CT image in the portal phase when LTP (black arrow) is detected; (D, E) combined 3D images of the initial tumour (obtained before ablation), the ablation zone (obtained 1 month after ablation) and LTP (obtained 9 months after ablation) in various directions show their spatial relationship; (F) local enlargement images show the position relationship of the initial tumour, the ablation zone and LTP. On this image, the LTP-associated AM is 6.7 mm.
Table 2. Comparison of tumour characteristics according to local tumour progression.
Figure 3. Comparison of cumulative local tumour progression rates according to min-AM (A) and tumour size (B).
Table 3. Univariate and multivariate analysis of possible risk factors for local tumour progression.