The value of magnetic resonance angiography in the portal venous hypertension patients

Objective: To evaluate the clinical value of the Magnetic resonance angiography in the diagnosis of the portal venous hypertension.Methods: 15 volunteers and 27 cirrhosis portal hypertensive(CPH) patients were performed with contrast-enhanced magnetic resonance portal venography(CEMRP).The diameter of the main portal vein(MPV) splenic vein(SPV),and the superior mesentery vein(SMV) were measured.Phase contrast(PC) method was used to measure the flow velocity,amount,and direction.Result:(1)The intrahepatic veins were displayed lesser in CPH group than that in the control group(Hc=10.76,P0.01).Collateral circulation were well demonstrated on CPH cases.(2) MPV,SPV,SMV diameters were enlarged,the flow rate was reduced,and the amount of the PV blood increased in the CPH groups.Conclusion: MRP is an accurate,comprehensive,noninvasive method to imaging the whole portal system with its collaterals and is important to surgical decision of portal hypertension.Flow measurement in the portal venous shows promise for evaluating patients with esophageal varices.