超声内镜在十二指肠壶腹部肿瘤术前评估中的应用

Evaluation of endoscopic ultrasound for preoperative staging of ampullar tumor

目的评估超声内镜在壶腹部肿瘤术前诊断中的价值。方法回顾性分析2010年至2015年间31例诊断壶腹部肿瘤并接受外科手术的患者，全部患者术前行腹部超声、CT、磁共振胰胆管造影（MRCP）及超声内镜检查，比较超声内镜与其他影像检查的术前诊断率及超声内镜术前分期与术后病理分期结果的符合率。结果31例壶腹部肿瘤患者术前超声内镜评估T分期：uT1有4例，uT2有15例，uT3有10例，uT4有2例。与术后病理分期比较，超声内镜术前评估T分期准确率为：90．3％（28／31），其中分期过高1例，分期过低2例。超声内镜术前诊断率优于其他影像学检查。结论超声内镜对于可疑壶腹部肿瘤患者的术前评估有较高的价值。

Objective To evaluate endoscopic ultrasound for preoperative staging of ampullar tumors. Methods A total of 31 patients with ampullar tumors who underwent surgery from 2010 to 2015 were retrospectively reviewed. B-US, CT, MRCP and EUS were performed in all patients. The diagnostic rates of EUS and other imaging technology, and the diagnostic accuracy of preoperative staging and postoper- ative pathological staging were compared. Results Diagoses of 31 patients of ampullar tumors patients un- dergoing preoperative endoscopic ultrasonography assessment T staging were as the following： uT1,4 cases; uT2, 15 cases; uT3, 10 cases; uT4, 2 cases. Compared with the postoperative pathological diagnosis, the T staging accuracy was 90. 3% （28/31）, among which 1 case was overestimated, 2 cases were underestima- ted. The accuracy of endoscopic ultrasound in preoperative diagnosis of ampullar lesions was superior to other detection technology. Conclusion EUS is a valuable diagnostic tool for patients with suspected ampullar tumors.