title: [The portal system and the hepatic artery in children with extrahepatic bile duct atresia. 2: Further duplex sonography parameters and flowmetry].
abstract: Since 1 1/2 year we performed duplex-sonographic examinations including flowmetry of the portal system and hepatic artery in children with biliary atresia. In children with hepatofugal collaterals we found a significant decreased Time Average Velocity (TAV) with 0.09 m/s against the control group with TAV of 0.18 m/s. The TAV in the splenic vein was also decreased. In the hepatic artery we found no change of the TAV. In most of the children a portal hypertension with hepatofugal collaterals was to be found in the first year of life. In 14 children the collaterals were visible. In these 14 children and 7 other children calculated parameters indicated the very high probability of collateral vessels. In children with hepatofugal collaterals we found a decreased portal vein flow. In 16 of 21 cases the flow in the hepatic artery was increased.
authors.affiliation: Universitäts-Kinderklinik Tübingen.
authors.forename: D
authors.initials: D
authors.lastname: Grunert
authors.forename: B
authors.initials: B
authors.lastname: Stier
authors.forename: M
authors.initials: M
authors.lastname: Schöning
mesh_terms: D001656:Biliary Atresia / Q000175:diagnosis* / Q000503:physiopathology; D001783:Blood Flow Velocity / Q000502:physiology*; D001810:Blood Volume / Q000502:physiology; D003097:Collateral Circulation / Q000502:physiology; D006499:Hepatic Artery / Q000503:physiopathology*; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods; D007223:Infant; D008642:Mesenteric Veins / Q000503:physiopathology; D011168:Portal System / Q000503:physiopathology*; D011169:Portal Vein / Q000503:physiopathology; D014463:Ultrasonography / Q000379:methods*
vernacular_title: Das Portalsystem und die Arteria hepatica bei Kindern mit extrahepatischer Gallengangsatresie. Teil 2: Weitere Duplexsonographische Parameter und Flowmetrie.