Table 1.

Sonographic findings of Clonorchis sinensis infected rabbits before and after treatment

^a)identification number of the rabbits infected with 500 metacercariae; ^b)numbers of eggs per gram of feces before treatment; ^c)intrahepatic bile duct dilatation, +++ for larger ducts than adjacent portal vein, ++ for similar ducts with adjacent portal vein, + for smaller ducts than adjacent portal vein, - for normal sized distal ducts; ^d)periductal echogenicity, + for increased echogenicity, - for normal echogenicity; ^e)not done; ^f)the rabbit not cured at 18 months after treatment.