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Post‐temporary ligation intraoperative mesenteric portovenography: comparison with CT angiography for investigation of portosystemic shunts
Author(s) -
Parry A. T.,
White R. N.
Publication year - 2018
Publication title -
journal of small animal practice
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.7
H-Index - 67
eISSN - 1748-5827
pISSN - 0022-4510
DOI - 10.1111/jsap.12786
Subject(s) - medicine , portography , ligation , inferior mesenteric vein , angiography , radiology , superior mesenteric vein , vascularity , mesenteric vein , portal hypertension , portal vein , transjugular intrahepatic portosystemic shunt , portosystemic shunt , portal venous pressure , iopamidol , surgery , contrast medium , cirrhosis
Objectives Comparison of pre‐operative CT angiography and post‐temporary, full‐ligation, intraoperative, mesenteric portovenography for the characterisation of intrahepatic portal vasculature in patients with single extrahepatic portosystemic shunts. Methods Descriptive analysis of previously collected images from 14 dogs and five cats. Results With the exception of shunts involving the right gastric vein, intrahepatic arborisation appeared similar on both modalities. Portovenography improved contrast enhancement and slightly enlarged the intrahepatic portal vasculature. Clinical Significance CT angiography cannot replace intraoperative mesenteric portovenography after temporary full ligation, which provides information on intrahepatic portal vascularity. It is a practical and dynamic procedure, providing results that are instantaneously available at the time of surgery. In addition, intraoperative post‐temporary, full‐ligation, mesenteric portography confirmed that the single shunting vessel had both been recognised and ligated.