portal venography

Question Number 1614

the following are true of portal venography

a) is most commonly performed to detect the site of varicreal bleeding
b) alcoholic cirrhosis is most likely to lead to POST-sinusoidal obstruction
c) in arterial portography portal vein opacification is maximal between 40-60 seconds after injection
d) in transhepatic portography the needle should be wothdrawn completely before every re-attempt
e) in splenoportography the use of gelatin sponges to plug the tract is contraindicated

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