title: The differentiation of bile ducts and blood vessels using a pulsed Doppler system.
mesh_terms: D000368:Aged; D001012:Aorta, Abdominal; D001014:Aortic Aneurysm / Q000175:diagnosis; D001652:Bile Ducts; D002769:Cholelithiasis / Q000175:diagnosis; D002779:Cholestasis / Q000175:diagnosis*; D004301:Doppler Effect; D005260:Female; D006503:Hepatic Veins; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D010190:Pancreatic Neoplasms / Q000175:diagnosis; D011169:Portal Vein; D014465:Ultrasonics / Q000295:instrumentation; D014463:Ultrasonography; D014682:Vena Cava, Inferior