Abstract
In clinical hepatology, ultrasound (US) examination is necessary and widely used tool for disease diagnosis, assessment and monitoring. With prevalent viral hepatitis in Taiwan, both conventional and color Doppler US are important for liver disease and cirrhosis evaluation. The change of portal flow, hepatic venous flow (wave form) and splenoportal index are proved to be correlated with the severity of liver cirrhosis. Color Doppler US provided important information about cirrhosis diagnosis, staging and prognosis in liver cirrhosis. Besides the parenchymal change, color Doppler US could examine the hepatic vasculature and identify various kinds of vascular anomaly and shunts. The detection by color Doppler US of vascular thrombosis in cirrhosis and in liver cancer vascular invasion are also a key issue in clinical presentation and management.
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