Assessment of liver ablation using cone beam computed tomography

Figure 2 A 53-year-old man with small hepatocellular carcinoma in the right liver. On baseline arterial phase axial and coronal contrast-enhanced multidetector computed tomography (MDCT) (A and B), the tumor was hypervascular (arrow). On axial and coronal contrast-enhanced cone beam computed tomography (CBCT) immediately after radiofrequency ablation (C and D), the ablation zone was clear and markedly hypoattenuating. Image fusion performed between baseline arterial phase contrast-enhanced MDCT and contrast-enhanced CBCT showed satisfactory tumor coverage (E). The ablation zone is clearly visible on 1-mo post-procedural axial and coronal contrast-enhanced MDCT (F and G). The volume of necrosis obtained from contrast-enhanced CBCT and 1-mo post-procedural contrast-enhanced MDCT was similar.