Use of second generation contrast-enhanced ultrasound in the assessment of focal liver lesions

Figure 3 Hepatocellular Carcinoma. Gray-scale US image (A) and split-screen display images of a contrast-enhanced US scan using a low MI technique (B-D). The gray-scale US image shows a slightly hypoechoic lesion in segment 2 of the liver (arrow, A). After contrast injection, the lesion shows marked hypervascularity in the arterial phase with a basket-pattern peripheral network of vessels (arrowheads, B and C). The lesion becomes isoechoic and finally washes out to leave a defect in the late phase (arrow, D).