低场MR对薄层硬膜下血肿的诊断价值与CT漏诊分析

The Value of low field MRI in the diagnosis of thin subdural hematomas

目的 探讨低场MR对薄层硬膜下血肿的诊断价值.方法 回顾性分析17例经手术或临床随访证实的薄层硬膜下血肿患者的临床及MR表现及特征,分析病变的部位、范围、厚度、MRI及CT表现.结果 15例薄层硬膜下血肿（8例为双侧）CT平扫漏诊;2例误诊为硬膜下水瘤.17例通过MRI检查后均能正确诊断.结论 MRI平扫对于薄层硬膜下血肿的诊断有较高价值,明显优于CT平扫,并且MRI分期与临床分期的准确性更为接近.

Objective To explore the value of low field MRI in the diagnosis of thin subdural hematomas. Methods 17 cases with thin subdural hematomas were studied. Analysis of lesion location, extent, thickness, CT and MRI manifestations. Results Thin subdural hematoma in 15 cases （8 cases were bilateral） CT scan missed; two cases of tumor misdiagnosed as dural water. 17 cases by MRI, correct diagnosis was achieved in all. Conclusion MRI scan for the diagnosis of thin subdural hematoma had a higher value is better than CT scan.