Differentiation of focal liver lesions using three-dimensional ultrasonography: Retrospective and prospective studies

Figure 1 Contrast-enhanced (CE) three-dimensional ultrasonography (3D US) images of the liver in a 57-year-old man with hepatocellular carcinoma (HCC) in the anterior superior segment of the right lobe. A, B: Tomographic ultrasound image with slice distance 1.5 mm in plane A (A) and the sonographic angiogram rendered by maximum intensity with surface mode (B) show diffuse enhancement with intratumoral vessels (arrows) in the early phase; C: Tomographic ultrasound image with slice distance 2.0 mm in plane B shows diffuse enhancement in the middle phase; D: Tomographic ultrasound image with slice distance 2.0 mm in plane C shows hypoechoic pattern in the late phase. Enhancement change of washout was detected in this lesion. Arrowheads indicate the tumor margin.