MRI对原发性空蝶鞍综合征的诊断价值

目的探讨磁共振成像(magnetic resonance imaging,MRI)对原发性空蝶鞍综合征的诊断价值.方法对有头颅MRI检查并有完整临床资料的原发性空蝶鞍患者36例进行研究.采用矢状面T1WI、冠状面T1WI,横断面T1WI、T2WI,9例行钆对比增强扫描.结果原发性空蝶鞍综合征患者蝶鞍的MRI表现主要有鞍区增大、鞍底下陷、鞍内为典型的长T1、长T2脑脊液信号;垂体受压变扁紧贴于鞍底,受压垂体信号无异常改变,垂体柄延长直达鞍底.其临床表现主要有:顽固性头痛、头晕、视力障碍、内分泌紊乱等症状.结论原发性空蝶鞍综合征具有典型的MRI表现,MRI可清晰显示空蝶鞍,MRI应作为原发性空蝶鞍综合征的首选影像学检查方法.

MR imaging of primary empty sella syndrome

Objective To explore the diagnostic value of MR imaging of primary empty sella syndrome(PESS).Methods Totally 36 patients,9 male and 27 female,with PESS undertook cerebral MR imaging.Sagittal and coronal T1-weighted images,axial Tl and T2-weighted images were obtained in all cases,and contrast enhanced MR scanning with Gd-DTPA was carried out in 6 patients.Results MRI features of PESS were as follows: The sella expanded;The inside of sella expressed CSF signal;The pituitary was compressed to become flat and close to the bottom of the saddle;The signal of pituitary was of no change;The hypophysis handle generally had elongated.Conclusion PESS has typical MR manifestations that show empty sella clearly.MRI should be regarded as the best way to diagnose PESS.