The Contrast Analyses of the Signs of CT and Hepatic Arteriography of theLiver Cancer Combined the Arteriovenous Fistulae / 实用放射学杂志

ABSTRACT

Objective To study the signs and the value of CT enhanced scanning in diagnosing the liver cancer combined arteriovenous fistulae(AVF).Methods 50 cases of the liver cancer combined AVF had plain and enhanced scanning by spiral CT,then proved by hepatic arteriography.The signs of CT and hepatic arteriography were contrast analyzed.Results CT scan showed 17 cases of artery-portal vein fistulae (centre),10 cases of artery-the small branch of portal vein fistulae(periphery),3 cases of artery-liver vein fistulae,5 cases combined the signs aforementioned,2 cases combined the artery-portal vein fistulae and the artery-liver vein fistulae,and the 13 cases no the characteristic signs of CT,37 cases of the signs of AVF were found by CT,sensitivity 74%.26 cases were diagnosed as AVF,postitive rate 52%.Conclusion The development of portal vein and/or the inferior caval vein ahead in artery phase,especially the parenchyma of the lobes,segments and subsegments of liver,may be a foundation of the diagnosis of AVF.And we discussed the limitation of the CT examination in diagnosing this complication.