多种影像学检查对胰腺癌的诊断价值

目的　比较超声内镜（EUS）、体表B超（US）、CT和ERCP对胰腺癌的诊断价值。方法　对180例经超声内镜（EUS）诊断的胰腺癌中具有手术病理诊断，又同期进行过以上各项检查的60例完整的病例进行分析。结果　EUS对胰腺癌的诊断敏感性为90%，特异性为70%,均高于US、CT和ERCP；EUS对胰腺癌TNM各期（T1～T4）的评价能力均高于US、CT和ERCP，分别达T1&T2=50%，T3=62%，T4=90%，总计达75%，对N因素的敏感性为46%，特异性为85%，也高于其他影像检查。结论　EUS联合US、CT及ERCP对胰腺癌的早期诊断及TNM分期均有较高的价值。

Evaluation of Four Imaging Examinations in the Diagnosis of Pancreatic Carcinoma

Objective To assess the four imaging examinations (EUS, CT, US, ERCP) in the diagnosis of pancreatic carcinoma. Methods One hundred and eighty cases of pancreatic carcinoma were detected with endoscopic ultrosonography (EUS). Among which, sixty cases underwent the US,CT and ERCP additionally, and were confirmed in operations and pathological examinations. The accuracy of the four imaging methods in the diagnosis of pancreatic carcinoma was compared. Results EUS in the diagnosis of pancreatic carcinoma was more accurate than the other three methods, the sensitivity of it was 90% and the specitivity was 85%; The possibility of EUS in the evaluation of TNM stage of pancreatic carcinoma was higher than that of the other three methods, T1&T2=50%,T3=62%,T4=90% respectively; The accuracy of EUS in assessing N factors was also higher than that of the other examinations. Conclusion EUS combined with US, CT and ERCP may play an important role in the early diagnosis and TNM stage of pancreatic carcinoma.