目的：探讨自发性低颅压综合征的MRI表现特征。
Purpose:To evaluate the MRI characteristics of spontaneous intracranial hypotension.
目的：分析自发性低颅压综合征的临床特点和MRI表现。
Purpose: To analysis the clinical characteristics and MRI findings of spontaneous intracranial hypotension syndrome.
方法回顾分析了12例临床诊断明确的原发性低颅压综合征病人的临床及影像资料。
Methods The clinical and imaging data of 12 patients diagnosed as SIH were retrospectively analyzed.
目的探讨原发性低颅压综合征（PIH）的临床特点、发病机制、脑脊液（CSF）及影像学改变。
Objective To investigate the clinical features, pathogenesis and the changes of cerebrospinal fluid(CSF)and imageology in primary intracranial hypotension(PIH).
结论直立性头痛是自发性低颅压综合征最典型的临床特征，腰穿脑脊液检查及头颅MRI检查可提高临床诊断准确性。
ConclusionOrthostatic headache is the most typical clinical symptoms of SIH, cerebrospinal fluid and brain MRI examinations can improve clinical diagnostic accuracy.
结论直立性头痛是自发性低颅压综合征最典型的临床特征，腰穿脑脊液检查及头颅MRI检查可提高临床诊断准确性。
ConclusionOrthostatic headache is the most typical clinical symptoms of SIH, cerebrospinal fluid and brain MRI examinations can improve clinical diagnostic accuracy.
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