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目的 研究磁共振成像对胰岛素瘤的诊断价值。方法 16例手术证实的胰岛素瘤患者于术前行MR检查 ,扫描序列包括快速自旋回波序列T1W、T2 W及脂肪抑制T1W、T2 W。结果 16例均能准确检出 ,10例呈长T1低信号 ,13例显示不同程度的长T2 高信号 ,T1及T2 抑脂图像肿瘤同胰腺的信号对比增强 ,显示更为清晰。结论 应用MR快速成像技术和脂肪抑制序列 ,能够对胰岛素瘤进行较精确的定位诊断。
Objective To study the diagnostic value of magnetic resonance imaging in insulinoma. Methods Sixteen patients with surgically confirmed insulinoma underwent MR examination before surgery. The scan sequence included rapid spin echo sequences T1W, T2W, and fat suppression T1W and T2W. RESULTS: All 16 cases were accurately detected, 10 cases showed long T1 low signal, 13 cases showed different degrees of long T2 high signal, T1 and T2 tumor image contrast enhanced with tumor signals of the pancreas, showing more clearly. Conclusion MR imaging and fat suppression sequences can be used to accurately diagnose insulinomas.