[Ultrasonographic manifestation and evaluation of imaging diagnosis of chronic XXXX ].

@entity1 @entity788 @entity16581 @entity9007
The ultrasonographic data of 50 @entity1 with chronic @entity788 are presented. Ultrasonographic manifestations were described as follows: Pancreatic focal or diffuse enlargement in 70% of these cases, reduced its size in 2%, retained its normal size in 28%, inhomogeneously increased echogenicity in 68%, coarse, focal dense echoes in 8%, decreased echogenicity in 20%, normal echogenicity in 4%, irregular contour in 40%, @entity9007 formation in 6%, abnormal pancreatic duct in 44%, dilated common bile duct in 20% and focal pancreatic mass in 14%. @entity1 in the study had a normal sonogram only in 4%. Abnormal ultrasonographic findings, especially @entity9007 and @entity16581 may be considered as important diagnostic evidence. In the diagnosis of chronic @entity788 , the coincident rate of ultrasonography, ERCP and CT was 80%, 75% and 81%, respectively. Their diagnostic value was evaluated and compared. CT was the most sensitive and accurate. Ultrasonography was simpler and non-invasive, it may be used as a method of choice. Combination of using these various imaging techniques may increase the diagnostic accuracy. The diagnostic coincident rate of combined ultrasonography and CT was 91%, and that of combined ultrasonography and ERCP was 91%.
