Ultrasonic Diagnosis of Biliary Obstruction-Differentiation of Cholestases and Detection of Obstructing Lesions

摘要

Forty control subjects, 33 patients with intrahepatic cholestasis and 264 patients with biliary obstruction were examined by ultrasound. The left and right hepatic ducts, upper bile duct and lower bile duct were visualized in 95%, 87.5%, 100% and 77.5% of contr