DIAGNOSIS OF ARTERIOPORTAL FISTULAE IN FOUR DOGS USING COMPUTED TOMOGRAPHIC ANGIOGRAPHY
Article first published online: 23 NOV 2005
Veterinary Radiology & Ultrasound
Volume 46, Issue 6, pages 472–477, November 2005
How to Cite
ZWINGENBERGER, A. L., McLEAR, R. C. and WEISSE, C. (2005), DIAGNOSIS OF ARTERIOPORTAL FISTULAE IN FOUR DOGS USING COMPUTED TOMOGRAPHIC ANGIOGRAPHY. Veterinary Radiology & Ultrasound, 46: 472–477. doi: 10.1111/j.1740-8261.2005.00086.x
- Issue published online: 23 NOV 2005
- Article first published online: 23 NOV 2005
- Received December 3, 2004; accepted for publication May 10, 2005.
- arterioportal fistula;
- computed tomography;
- computed tomography angiography;
- portosystemic shunt
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.