超声在肝外胆管结石定位诊断中的临床应用

目的探讨超声在肝外胆管结石定位诊断中的临床应用价值。 方法以胰头上下为界，应用超声对132例肝外胆管结石进行分段定位诊断，并与手术结果对照分析。 结果132例肝外胆管结石全部经手术证实。梗阻型112例，占84．85％（112／132），非梗阻型20例，占15．15％（20／132）。术前超声检出127例，检出率96．21％（127／132），未检出5例，占3．79％（5／132）。术前超声定位127例，术后符合119例，符合率93．70％（119／127）；其中术前超声检出肝外胆管上段结石88例，术后诊断79例；胰腺段26例，术后诊断29例；壶腹部13例，术后诊断19例。 结论超声对肝外胆管结石定位诊断准确率较高，具有重要的临床应用价值。

Clinical Applicationn of Ultrasonography in Localization of Extrahepatic Bile Duct Lithes

Objective To investigate the value of clinical application of ultrasonography in localization of extrahepatic bile duct lithes.Methods Using the upper and lower sides of the pancreatic head as the border lines,the extrahepatic bile duct lithes in 132 cases were localized on ultrasonography segmentally and compared with operation and pathology.Results The lithes were divided into obstructive type in 112 cases(84.85%,112/132)and unobstructive type in 20 cases(15.15%,20/132)on ultrasonography.Before operation,the lithes were diagnosed ultrasonographically in 127 cases(96.21%,127/132)and were missed in 5 cases (3.79%,5/132).In 127 cases,the extrahepatic bile duct lithes located in the upper segment were in 88 cases proved in 79 cases postoperatively;lithes in pancreatic segment in 26 cases vs 29 cases postoperatively;in ampullar Vater in 13 cases vs 19 cases after operation.Conclusions Ultrasonography possesses high accuracy rate for localization diagnosing extrahepatic bile duct lithes and it is worthy for clinical application.