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目的 :探讨原发性低颅压综合征的脊柱MRI表现特点,以提高对该疾病的诊断认识。方法 :回顾性分析11例原发性低颅压综合征的脊柱MRI表现,包括:椎管内硬膜外积液,硬脊膜强化,硬膜外静脉丛扩张,C1~2水平或脊柱神经根鞘周围异常T2高信号,椎管狭窄或脊压征,椎管结构变异。结果 :11例患者脊柱MRI表现:硬膜外积液91%(10/11例),硬脊膜强化71%(5/7例),硬膜外静脉丛扩张64%(7/11例),C1~2水平或颈胸腰椎神经根鞘周围异常水样信号86%(6/7例),椎管狭窄或脊压征45%(5/11例),椎管结构异常27%(3/11例)。结论:脊柱MRI有助于原发性低颅压综合征的诊断及病因查找,对临床有重要指导价值。
Objective: To investigate the MRI features of primary intracranial hypotension syndrome in order to improve the diagnosis of this disease. Methods: MRI findings of 11 patients with primary intracranial hypotension were retrospectively analyzed. The results showed that spinal canal epidural effusion, dura mater, dilated epidural venous plexus, C1 ~ 2 level or spinal nerve Abnormal T2 high signal around the root sheath, spinal canal stenosis or spinal syndrome, spinal structural variation. RESULTS: Spinal MRI manifestations in 91 patients were 91% (10/11) of epidurals, 71% (51 of them) of dura mater and 64% of epidural venules (7/11) (6/7 cases), spinal cord stenosis or spinal pressure sign (45 cases) (5/11 cases), spinal canal structure abnormality 27% (3) / 11 cases). Conclusion: Spinal MRI is helpful to the diagnosis and etiological search of primary intracranial hypotension syndrome, which is of great guiding value to clinic.