超声内镜对胰岛素瘤的诊断价值

The Value of Endoscopic Ultrasonography in Diagnosing Insulinoma

目的探讨超声内镜对胰岛素瘤的诊断价值。方法：对７例胰岛素瘤患者进行超声内镜、血管造影、ＭＲＩ、ＣＴ及腹部超声波检查。结果：超声内镜对胰岛素瘤的诊断率为９０％，其中肿瘤直径在２ｃｍ以下的诊断率为８７．５％，腹部超声波诊断率为３０％；ＣＴ平扫和增强扫描的诊断率分别为２０％和５０％；ＭＲＩ诊断率为６６．７％；血管造影的诊断率为８０％。结论：超声内镜对胰岛素瘤的诊断优于其它影像学检查，特别是对小的胰岛素瘤诊断。

This study was designed to evaluate endoscopic ultrasonography (EUS) in diagnosing insulinoma. Methods: Seven cases with insulinoma were examined by EUS, angiography, MRI, CT, and ultrasonography. We compared their diagnostic rates. Results: The diagnostic rate of EUS for insulinoma was 90%. Among them, for the tumors with diameter less than 2 cm, the diagnostic rate was 87.5%. The diagnostic rate was 30% for abdominal ultrasonography, 50% for computer tomography and contrast computer tomography respectively, 66.7% for MRI, and 80% for angiography. Conclusions: EUS was superior to other imaging examination in diagnosing insulinoma, especially valuable for the diagnosis of small ones.