Diagnosis of arterioportal fistulae in four dogs using computed tomographic angiography

Allison Zwingenberger, R. C. McLear, C. Weisse

Research output: Contribution to journalArticlepeer-review

41 Scopus citations


Arterioportal fistulae are rare congenital anomalies of the hepatic vasculature. Diagnosis is conventionally made by selective angiography or ultrasonography. This report describes use of a dual-phase computed tomographic (CT) angiographic technique to diagnose arterioportal fistulae in four dogs. Advantages of this method include a noninvasive peripheral injection of contrast medium, ability to diagnose multiple acquired extrahepatic shunts, and observation of hemodynamic changes such as hepatofugal blood flow and reduced circulation to the caudal abdomen. The hepatic vasculature including arteries, veins, and portal veins can be completely evaluated. Dual-phase CT angiography is a safe and minimally invasive method of diagnosing arterioportal fistulae in dogs.

Original languageEnglish (US)
Pages (from-to)472-477
Number of pages6
JournalVeterinary Radiology and Ultrasound
Issue number6
StatePublished - Nov 2005
Externally publishedYes


  • Arterioportal fistula
  • Canine
  • Computed tomography
  • Computed tomography angiography
  • Portosystemic shunt

ASJC Scopus subject areas

  • veterinary(all)


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