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目的：探讨ＭＲＩ对本病的诊断价值。方法：分析２５例空蝶鞍的临床及ＭＲＩ表现，并对发病机理进行探讨。结果：空蝶鞍的ＭＲＩ征象有（１）鞍内为脑脊液充填；（２）蝶鞍增大；（３）垂体受压紧贴鞍底，矢状位呈弧线样，冠状位呈“锚”状；（４）垂体柄居中、延长；（５）可伴有脑积水等脑脊液压力增高病变。结论：空蝶鞍有相似的ＭＲＩ征象，ＭＲＩ多方位的特征性表现能作出正确诊断。
Objective: To investigate the diagnostic value of MRI for this disease. Methods: The clinical and MRI findings of 25 patients with empty sella were analyzed. The pathogenesis was also discussed. Results: The MRI findings of the empty sella were (1) filling the cerebrospinal fluid in the sella; (2) the sella increased; (3) the pituitary gland was pressed against the sellae and the sagittal was arc-like, "Shape; (4) pituitary stalk center, extended; (5) may be associated with hydrocephalus and other elevated cerebrospinal fluid pressure lesions. CONCLUSIONS: There are similar MRI signs of empty sella, and the multi-directional features of MRI can make correct diagnosis.