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

Figure 2 CE 3D US images of the liver in a 64-year-old woman with metastases from pancreatic carcinoma in the anterior superior segment of the right lobe. A: Images in the early phase show peripheral ring-like enhancement with peritumoral vessels (arrows) in plane A (upper left), plane B (upper right), plane C (lower left) and the sonographic angiogram rendered by average intensity with surface mode (lower right); B: Tomographic ultrasound image with slice distance 2.0 mm in plane A shows peripheral ring-like enhancement in the middle phase; C, D: Tomographic ultrasound images (TUI) in plane A with slice distance 2.5 mm (C) and that in plane C with slice distance 2.0 mm (D) show hypoechoic pattern in the late phase. Enhancement change of washout was detected in this lesion. Arrowheads indicate the tumor margin.