Abstract
Objective To explore the distributions of the collateral circulation in portal hypertension patients displayed by 3D-DCE-MRA.Methods 69 patients with portal hypertension who had undergone hepatic portal vein 3D-DCE-MRA in our department were selected.These image data were analyzed after subtracting and MIP reconstructing.Then added up the distribution of collateral circulation.Results Among the 69 cases,there were 45 cases with esophageal varix,47cases with gastric fundus varix,35 cases with azygos or hemiazygos varix,34 cases with left gastric varix,11 cases with posterior gastric varix,13 cases with gastric renal shunt,14 cases with renal varix,4 cases with spleen renal shunt,21 cases with paraumbilical veins rarix,and 17 cases with gonad varix.Conclusion 3D-DCE-MRA not only can discover the varix collateral circulation,but also is able to display the veins from origin to the end and the relations between the veins and their surrounding structure more clearly. Key words: MRA; Portal hypertension; Collateral circulation
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