Hepatic Arterioportal Shunts: Dynamic CT and MR Features
Korean Journal of Radiology
; : 1-15, 2002.
Article
in En
| WPRIM
| ID: wpr-121154
Responsible library:
WPRO
ABSTRACT
With the increased temporal resolution available in dynamic computed tomography (CT) and magnetic resonance imaging (MRI), hepatic arterioportal shunts are now more frequently encountered than in the past. The condition occurs in various hepatic diseases in which portal or hepatic venous flow is compromised. The underlying mechanism and the degree of shunt affect its appearance at dynamic imaging. The dynamic CT and MRI findings have been summarized as early enhancement of peripheral portal veins, and wedge-shaped transient parenchymal enhancement during the hepatic arterial phase. Recognition of arterioportal shunt can suggest the presence of a previously unsuspected disorder and avoids false-positive diagnosis or overestimation of a hepatic disease. Familiarity with the pathophysiology of arterioportal shunt also allows investigation of the hepatic hemodynamic changes occurring in various hepatic diseases.
Key words
Full text:
1
Database:
WPRIM
Main subject:
Portal System
/
Portal Vein
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Magnetic Resonance Imaging
/
Tomography, X-Ray Computed
/
Arteriovenous Fistula
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Chemoembolization, Therapeutic
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Carcinoma, Hepatocellular
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Hepatic Artery
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Liver Circulation
/
Liver Diseases
Limits:
Humans
Language:
En
Journal:
Korean Journal of Radiology
Year:
2002
Document type:
Article