Research Article

Percutaneous Radiofrequency Ablation of Small (1–2 cm) Hepatocellular Carcinomas Inconspicuous on B-Mode Ultrasonographic Imaging: Usefulness of Combined Fusion Imaging with MRI and Contrast-Enhanced Ultrasonography

Figure 2

Flow diagram of the patient enrollment process. US = ultrasonography; HCC = hepatocellular carcinoma; RFA = radiofrequency ablation; FI = fusion imaging; CEUS = contrast-enhanced ultrasonography.