Value of contrast-enhanced intraoperative ultrasound for cirrhotic patients with hepatocellular carcinoma: A report of 20 cases

Figure 1 It illustrates the enhancing pattern of HCC and normal liver parenchyma. With more arterial supply, HCC appears hyperechoic in the arterial phase and the lesion is slightly and then clearly hypoechoic, and relative to the surrounding parenchyma in the portal and late phases with the washout of contrast agents.