Journal
WORLD JOURNAL OF GASTROENTEROLOGY
Volume 23, Issue 10, Pages 1735-1746Publisher
BAISHIDENG PUBLISHING GROUP INC
DOI: 10.3748/wjg.v23.i10.1735
Keywords
Portal hypertension; Diagnostic imaging; Portosystemic collaterals; Image-guided therapy
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Portal hypertension is a common clinical syndrome, defined by a pathologic increase in the portal venous pressure. Increased resistance to portal blood flow, the primary factor in the pathophysiology of portal hypertension, is in part due to morphological changes occurring in chronic liver diseases. This results in rerouting of blood flow away from the liver through collateral pathways to low-pressure systemic veins. Through a variety of computed tomographic, sonographic, magnetic resonance imaging and angiographic examples, this article discusses the appearances and prevalence of both common and less common portosystemic collateral channels in the thorax and abdomen. A brief overview of established interventional radiologic techniques for treatment of portal hypertension will also be provided. Awareness of the various imaging manifestations of portal hypertension can be helpful for assessing overall prognosis and planning proper management.
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