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目的探讨鞍区占位性病变的MRI诊断与鉴别诊断。方法选择鞍区占位性病变患者40例,鞍旁占位性病变患者15例,鞍内占位性病变患者20例,鞍上占位性病变患者5例。所有患者均采用CT检查和MRI检查,对比2种检查方法的符合率与误诊率。结果 40例患者CT扫描后诊断出35例,符合率87.5%,误诊5例,误诊率12.5%;MRI扫描诊断出39例,占97.5%,误诊1例,占2.5%。MRI诊断的符合率高于CT诊断(P<0.05)。结论 MRI扫描检查可明确描述鞍区占位性病变的病变范围、方式、部位、程度及病变部位形态等特征,可提高诊断准确率,能为患者提供更好的医疗服务体验。
Objective To investigate MRI diagnosis and differential diagnosis of space-occupying lesions in the sellar region. Methods Forty patients with space-occupying lesions in the sellar area, 15 patients with secundum lesions, 20 patients with space-occupying lesions in the saddle, and 5 patients with space occupying lesions in the saddle were selected. All patients underwent CT and MRI examinations, comparing the two methods of coincidence rate and misdiagnosis rate. Results Among the 40 cases, 35 cases were diagnosed after CT scan, the coincidence rate was 87.5%, misdiagnosis was 5 and the rate of misdiagnosis was 12.5%. MRI scan showed 39 cases (97.5%) and misdiagnosis (2.5%). The coincidence rate of MRI diagnosis was higher than CT diagnosis (P <0.05). Conclusions MRI scan can clearly describe the characteristics, such as the range, mode, location, extent of the lesion in the sellar area and the morphology of the lesion. It can improve the diagnostic accuracy and provide a better medical service experience for the patients.