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目的探讨超声内镜诊断胰腺内分泌肿瘤的价值．方法胰腺内分泌肿瘤患者１０例，进行了超声内镜、血管造影、ＭＲＩ，ＣＴ及超声波检查．结果超声内镜对胰腺内分泌肿瘤的诊断率为９２３％，其中肿瘤直径在２ｃｍ以下的诊断率为８７５％，肿瘤轮廓清晰，边缘整，内部回声呈强回声、低回声、等回声和混合性回声；超声波的诊断率为４６２％；ＣＴ平扫和增强扫描的诊断率分别为３０７％和４６２％；ＭＲＩＴ１呈低信号、Ｔ２呈高信号，诊断率为７２７％；血管造影的诊断率为８４６％．结论超声内镜对胰腺内分泌肿瘤的定位诊断和定性诊断优于其他影像学检查，特别是对胰腺小肿瘤的诊断，更显示出它的价值．
Objective To explore the value of endoscopic ultrasonography in diagnosis of pancreatic endocrine tumors. Methods Ten patients with pancreatic endocrine tumors underwent endoscopic ultrasonography, angiography, MRI, CT and ultrasonography. Results The diagnostic rate of endoscopic pancreatic tumors by endoscopic ultrasonography was 92. 3%. The diagnosis rate of tumor diameter below 2 cm was 87.5%. The tumor had clear outlines, full edges, strong echoes, hypoechoic echoes, echoes of internal echoes. And mixed echo; the diagnostic rate of ultrasound was 46. 2%; the diagnostic rates of CT plain scan and enhanced scan were 30. 7% and 46. 2%, respectively; MITT 1 showed low signal, T 2 showed high signal, and the diagnostic rate was 72. 7%; the diagnostic rate of angiography was 84.6%. Conclusion Endoscopic ultrasonography is superior to other imaging examinations in the diagnosis and qualitative diagnosis of pancreatic endocrine tumors. It is especially valuable for the diagnosis of small pancreatic tumors.