超声内镜对胰胆疾病的诊断价值

目的：探讨超声内镜（ＥＵＳ）对胰胆疾病的诊断价值。方法；对３０例慢性胰腺炎，５０例胰腺癌，１４例十二指肠壶腹癌，９例胆总管癌，３０例胆管结石，８例先天性胆总管囊肿及２例胆总管蛔虫进行ＥＵＳ检查，并与腹部超声（ＵＳ）、ＣＴ及ＥＲＣＰ检查结果进行比较。

Endoscopic ultrasonography in the diagnosis of choledochal and pancreatic diseases

Objective: To evaluate endoscopic ultrasonography(EUS)in the diagnosis of choledochal and pancreatic diseases. Methods: Thirty patients with chronic pancreatitis,50 with pancreatic carcinoma,14 with ampullary carcinoma,9 with common bile duct carcinoma,30 with choledocholithiasis,8 with choledochocele and 2 with biliary ascariasis were investigated and the results were compared with those of ultrasound (US), CT and ERCP. Results: EUS had higher sensitivity and accuracy and lower false negative rate in the diagnosis of choledochal and pancreatic diseases than those of ERCP. EUS showed all of the lesions of pancreatic carcinoma. The diagnostic accuracy was 94%,which was higher than that of US, CT and ERCP. EUS could clearly show the extent of main pancreatic duct dilation,the site of pancreatic duct stricture,pancreatic stone and pancreatic cyst.The diagnostic accuracy was much higher in chronic pancreatitis. According to the echopattern of pancreatic parenchyma,chronic pancreatitis could be divided into different types by EUS. The preoperative diagnostic accuracy in detecting the invasion of ampullary carcinoma to duodenal wall,common bile duct,pancreatic duct, pancreatic head and lymph nodes metastasis was 83.3%, 66.7%, 50 0%, 33.3% and 100 0%, respectively. Conclusion: EUS has great value in the diagnosis of choledochal and pancreatic diseases.