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Table 2 Grading of A-P shunt

From: Clinical characteristics of hepatic Arterioportal shunts associated with hepatocellular carcinoma

Grade Definition Number of patients
0 A-P shunt was not observed in hepatic arterial angiography. The iodized oil was dispersed from hepatic artery into the portal vein, leading to the deposition of iodized oil in intrahepatic portal vein unrelated to tumor. 38
1 Segmental branches of the portal vein portal was observed due to A-P shunt 21
2 Portal vein trunk was observed due to A-P shunt located in the same hepatic lobe 47
3 Portal vein trunk was observed due to A-P shunt located in a different hepatic lobe 31