Figure 9.

Incomplete hepatocellular carcinoma necrosis after transarterial chemoembolization. Arterial (A) and portal venous (B) phase computed tomography (CT) obtained 1 mo after transarterial chemoembolization (TACE) shows that hepatocellular carcinoma (HCC) is entirely replaced by Lipiodol accumulation (arrow). No evidence of residual tumor was found. Arterial (C) and portal venous (D) phase T1-weighted gradient-echo magnetic resonance (MR) obtained 1 wk after CT shows residual viable tumor (arrow) in the posterolateral portion of the tumor. This case shows higher accuracy of MR in comparison to CT in assessing HCC response after TACE.