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目的 :评价CT和MRI在诊断鼻内型脑膜脑膨出中的价值。方法 :回顾性分析 7例经手术和病理证实鼻内型脑膜脑膨出患者的CT与MRI表现 ;4例均行CT和MRI扫描 ,2例仅行CT扫描 ,1例仅行MRI检查。结果 :7例鼻内型脑膜脑膨出患者中有 1例并发脑积水。冠状位CT扫描可见筛骨骨质缺损 ,MRI见鼻腔内囊状异常脑脊液信号 ,并向上与颅内蛛网膜下腔直接相通 ,其内有少量脑组织信号。结论 :CT和MRI能正确诊断该型脑膜或脑膜脑膨出 ;CT显示颅底骨质缺损大小、部位优于MRI,MRI可清楚显示疝出物及其与脑底的关系。
Objective: To evaluate the value of CT and MRI in the diagnosis of intranasal meningoencephalocele. Methods: CT and MRI findings of 7 patients with endometrial encephalocele were confirmed by surgery and pathology. CT and MRI were performed in 4 cases, CT scan in 2 cases and MRI in 1 case. Results: One of 7 patients with intranasal meningoencephalocele complicated hydrocephalus. Coronal CT scan shows that the ethmoid bone defect, MRI, see intranasal cystic abnormal cerebrospinal fluid signal and up directly with intracranial subarachnoid direct communication, which has a small amount of brain tissue signal. Conclusion: CT and MRI can correctly diagnose this type of meningeal or meningoencephalitis. CT shows that the size and location of skull base defects are better than those of MRI. MRI can clearly show the relationship between hernias and the brain.