fig7

Figure 7. Defect reperfusion imaging for the local progression of hepatocellular carcinoma (HCC) after radiofrequency ablation (RFA). A: a computed tomography image shows focal arterial enhancement of the local progression of HCC (arrow) and RFA-induced coagulation necrosis (arrow heads); B: viable HCC (arrow) in close proximity to the necrotic area (arrow heads) are shown as areas with defects in the Kupffer phase; C: recurrent HCC (arrow) is clearly identified using the Sonazoid reinjection technique, whereas the necrotic area (arrow heads) does not enhance