portal venography

Question Number 1614

Question:
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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