Objective    To evaluate the multislice CT (MSCT) in the diagnosis of Budd-Chiari syndrome (BCS).     Methods    CT features of 28 cases with Budd-Chiari syndrome confirmed by DSA or operation were retrospectively analyzed.     Results    MSCT features of BCS: ①The morphologic changes on CT plain scan: enlargement of caudate lobe of the liver (15 cases)

diffuse enlargement of the liver (10 cases)

no significant changes (3 cases). ②Enhanced features: mottled (11 cases)

peripheral (6 cases)

central (8 cases)

irregular (3 cases). ③CTA accurately showed the location and obstruction of collateral vascular circulation: hepatic vein (HV) occlusion (3 cases)

inferior vena cava (IVC) narrow occlusion (25 cases)

and HV occlusion (7 cases). CTA also showed collateral circulation outside the liver (16 cases)

inside the liver (2 cases)

both inside and outside the liver (7 cases)

and no collateral circulation (3 cases).     Conclusion    Multislice CT can accurately and directly reflect the nature

position

scope

collateral circulation and space relation

as well as the morphological and functional damage of liver. Multislice CT is a reliable method to diagnose BCS and is useful in the treatment of BCS.