目的 探讨CT和磁共振(MRI)检查 对诊断鞍区肿瘤的临床价值。方法 本文 对我院2010年3月至2014年8月手术后病 理确诊的101例鞍区肿瘤患者的术前CT、 MRI检查资料进行回顾性分析，比较CT和 MRI检查判定结果与手术后病理检查结果 的一致性，并计算两种影像学检查的诊断 学评价指标。结果 CT与MRI对垂体瘤、 脑膜瘤的诊断结果与病理检查结果的符 合率比较差异不显著(P>0.05)，CT检查 颅咽管瘤、胶质瘤与术后病理检查结果 的符合率分别为(59.09%)、(47.37%)显 著低于MRI检查与术后病理检查结果的符 合率(P<0.05)。CT检查术前诊断垂体瘤 的敏感度（88.89%)、特异度(92.31%)， 诊断颅咽管瘤的灵敏度(59.09%)、特 异度(82.28%)，诊断脑膜瘤的灵敏度 (79.17%)、特异度(89.61%)，诊断胶质瘤 的灵敏度(47.37%)、特异度(85.37%)； MRI检查诊断垂体瘤的灵敏度(91.67%)、 特异度(93.85%)，诊断颅咽管瘤的灵敏度 (86.36%)、特异度(92.31%)，诊断脑膜瘤 的灵敏度(95.83%)、特异度(96.10%)， 诊断胶质瘤的灵敏度(94.74%)、特异度 (96.34%）。结论 对于垂体瘤、脑膜瘤 CT、MRI的诊断能力差异不显著，MRI诊断 颅咽管瘤、胶质瘤的能力强于CT，总体上 MRI的诊断学评价指标诊断鞍区肿瘤优于 CT。 【关键

Objective To investigate the clinical value of CT and magnetic resonance imaging (MRI) in the diagnosis of tumors in the saddle region. Methods In this paper, 101 cases of sellar tumor patients in our hospital from March 2010 to August 2014 after surgery and pathology confirmed the preoperative CT, MRI examination were retrospectively analyzed and compared CT and MRI determination results of pathological findings after surgery consistency, and calculate the two kinds of imaging diagnostic evaluation indicators. Results CT and MRI of the pituitary tumor, in line with the rate difference between the diagnosis of meningioma and pathological findings were not significant (P> 0.05), CT examination craniopharyngioma, glioma and the pathological findings were consistent with rates (59.09%), (47.37%) was significantly lower than MRI, and pathologic findings compliance rate (P<0.05). CT scan before surgery diagnosis of pituitary tumor sensitivity (88.89%), specificity (92.31%), the diagnosis of craniopharyngioma sensitivity (59.09%), specificity (82.28%), the diagnosis of meningioma sensitivity (79.17%) , specificity (89.61%), the diagnosis of glioma sensitivity (47.37%), specificity (85.37%). MRI diagnosis of pituitary tumor sensitivity (91.67%), specificity (93.85%), the diagnosis of craniopharyngioma sensitivity (86.36%), specificity (92.31%), the diagnosis of meningioma sensitivity (95.83%), specificity (96.10%), the diagnosis of gliomas sensitivity (94.74%), specificity (96.34%). Conclusion For pituitary tumor, meningioma CT, MRI diagnostic capabilities difference was not significant, MRI diagnosis craniopharyngioma, glioma ability is stronger than CT, MRI diagnostics overall evaluation index diagnosis sellar tumors better than CT.