title: Contrast-enhanced portal magnetic resonance angiography in dogs with suspected congenital portal vascular anomalies.
abstract: Contrast-enhanced multiphase magnetic resonance angiography (CE-MRA) was used in 17 dogs with a suspected congenital portal vascular anomaly. Portal vascular anomalies were identified in 16 of the 17 dogs. Eleven had a single intrahepatic portocaval shunt (two central divisional, three right divisional, and six left divisional), one dog had a double intrahepatic portocaval shunt, one dog had a hepatic arteriovenous malformation, one dog had a complex intrahepatic porto-caval shunt. Two dogs had an extrahepatic portosystemic shunt and no shunt was identified in one dog. Total imaging time was <10 min and image quality was good to excellent in all dogs. Portal CE-MRA is a feasible, fast and non invasive technique to diagnose portal vascular anomalies in dogs, with a large field-of-view and good anatomic depiction of the abnormal vessels. Based on these results, CE-MRA is an efficient imaging technique for the diagnosis of portal vascular anomalies in dogs.
authors.affiliation: Rosenthal Imaging and Treatment Center, University of Pennsylvania, School of Veterinary Medicine, Philadelphia, PA 19104, USA.
authors.forename: Wilfried
authors.initials: W
authors.lastname: Mai
authors.forename: Chick
authors.initials: C
authors.lastname: Weisse
mesh_terms: D000818:Animals; D003287:Contrast Media; D004283:Dog Diseases / Q000175:diagnosis*; D004285:Dogs; D005260:Female; D005682:Gadolinium; D021621:Imaging, Three-Dimensional; D018810:Magnetic Resonance Angiography / Q000662:veterinary*; D008297:Male; D011168:Portal System / Q000002:abnormalities*; D054079:Vascular Malformations / Q000175:diagnosis / Q000662:veterinary*
chemical_list: D003287:Contrast Media; D005682:Gadolinium