title: Localization of the porta hepatis by ultrasonic scanning prior to percutaneous transhepatic portography.
mesh_terms: D002404:Catheterization; D006801:Humans; D008099:Liver / Q000033:anatomy & histology*; D008103:Liver Cirrhosis / Q000000981:diagnostic imaging; D011169:Portal Vein / Q000000981:diagnostic imaging*; D011677:Punctures / Q000379:methods; D011859:Radiography; D014465:Ultrasonics / Q000379:methods; D014463:Ultrasonography