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DIAGNOSIS OF A PORTO‐AZYGOUS SHUNT USING HELICAL COMPUTED TOMOGRAPHY ANGIOGRAPHY
Author(s) -
Thompson Margret S.,
Graham John P.,
Mariani Christopher L.
Publication year - 2003
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/j.1740-8261.2003.tb00457.x
Subject(s) - medicine , shunt (medical) , radiology , helical computed tomography , angiography , portosystemic shunt , computed tomography angiography , computed tomography , tomography , contrast medium , surgery , portal hypertension , cirrhosis
Congenital portosystemic shunts occur uncommonly in dogs. Conventional diagnostic methods either do not offer simultaneous diagnosis and anatomic characterization or require an invasive selective catheterization. Helical computed tomography (HCT) is a rapid, noninvasive means of acquiring crosssectional images of any portion of the body. Combined with a peripheral venous injection of contrast medium, HCT can produce computer‐rendered, “angiogram‐like” images of vasculature. These computer‐ generated multiplanar and three‐dimensional HCT angiographic images were helpful in the diagnosis and accurate anatomic characterization of a porto‐azygous shunt. A brief discussion of scanner and contrast medium protocol considerations necessary to achieve adequate vascular opacification for volumetric data reconstructions and diagnosis are outlined.