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《Radiologic Practice》 2006-09
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Arterio-portal Shunts in Hepatoma:a Correlative Study of Dynamic Enhancement CT and DSA

CHEN Jun,CHEN Shi-xi,YUN Guo-wen,et al.Department of Interventional Radiology, Cancer Hospital of Jiangsu Province,Nanjing 210009,P.R.China  
Objective:To investigate the CT and DSA features of arterio-portal shunts (APS) related to hepatoma and to evaluate the diagnostic value of CT and DSA in different types of APS.Methods:Twenty seven cases with APS related to hepatoma were studied using dynamic enhanced CT and DSA.APS was divided into three types,i.e.central type,peripheral type and diffuse type.CT and DSA findings of APS of these three types were analyzed retrospectively.The value of CT and DSA in the diagnosis of APS was evaluated.Results:The basic feature of APS is early enhancement of portal venous system and the marked enhancement of liver parenchyma supplied by the shunt during hepatic arterial predominant phase.Of the 27 patients,thirty nine APS were depicted by CT;there were central APS (n=11),peripheral APS (n=18) and ten diffuse APS (n=10).Fifty one APS were showed on DSA,there were central APS (n=11),peripheral APS (n=30) and diffuse APS (n=10).For the diagnosis of peripheral APS,CT was inferior to DSA (P0.05).Disadvantages of both CT and DSA were existed.Conclusion:APS had characteristic dynamic enhanced CT and DSA features.Central APS and diffuse APS could be accurately evaluated by dynamic enhanced CT or DSA,but for the diagnosis of peripheral APS,a few pitfalls were existed in both modalities.
【Fund】: 江苏省肿瘤医院青年科技基金(ZQ200416)
【CateGory Index】: R735.7
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