title: Pre- and postoperative imaging of the Rex shunt in children: what radiologists should know.
abstract: OBJECTIVE
  The objective of this article is to illustrate the imaging features of patients with extrahepatic portal venous obstruction who are evaluated before or after a Rex shunt surgery.
  
  
  CONCLUSIONS
  The Rex shunt is a potentially curative surgical procedure that reestablishes physiologic hepatopetal portal flow. It is typically accomplished by interposing a vascular conduit between the superior mesenteric vein to the still patent intrahepatic portal venous system. This procedure results in resolution of portal hypertension.
authors.affiliation: Department of Radiology, The Children's Hospital of Philadelphia, University of Pennsylvania, Philadelphia, 19104, USA.
authors.forename: Agustín M
authors.initials: AM
authors.lastname: Cárdenas
authors.forename: Monica
authors.initials: M
authors.lastname: Epelman
authors.forename: Kassa
authors.initials: K
authors.lastname: Darge
authors.forename: Elizabeth B
authors.initials: EB
authors.lastname: Rand
authors.forename: Sudha A
authors.initials: SA
authors.lastname: Anupindi
mesh_terms: D002648:Child; D002675:Child, Preschool; D003952:Diagnostic Imaging; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000175:diagnosis* / Q000503:physiopathology / Q000601:surgery*; D007223:Infant; D008297:Male; D011169:Portal Vein / Q000503:physiopathology; D011170:Portasystemic Shunt, Surgical / Q000379:methods*; D011183:Postoperative Complications / Q000175:diagnosis