摘要
目的探讨磁共振神经成像(MRN)序列对臂丛神经损伤的诊断价值。方法采用3.0T MRI对43例临床诊断为臂丛神经损伤患者行术前常规MRI及MRN序列扫描,对手术探查、术中肌电图及术前MRI/MRN检查结果进行比较分析。结果 MRN对节前神经损伤诊断的敏感度为76.2%,特异度为83.6%,准确率为80.0%。MRN对臂丛神经节后损伤诊断的敏感度为74.8%,特异度为88.1%,准确率为79.2%。结论 MRN可作为早期臂丛神经损伤定性及定位诊断的影像学检查方法之一。
Aim To evaluate the diagnostic value of magnetic resonance neurography（MRN） in brachial plexus injury. Methods A total of 43 patients enrolled with brachial plexus injury underwent routine MRI and MRN at 3.0T before surgery. Intraoperative findings and intraoperative EMG were used as the reference standard. MRN findings, sensitivity, specificity with 95 % confidence intervals and accuracy were compared for investigating the diagnostic value of MRI in brachial plexus injury at early stage. Results The sensibility, specificity and accuracy of MRN in diagnosing preganglionic brachial plexus injury was 76.2%, 83.6%, 80.0%, respectively. The sensitivity, specificity and accuracy of MRN in diagnosing postganglionic injury were 74.8%, 88.1%, 79.2%, respectively. Conclusion MRN can provide accurate diagnosis of the location and nature of brachial plexus injury, especially for early injury cases.
出处
《中国临床神经科学》
2017年第4期398-403,共6页
Chinese Journal of Clinical Neurosciences
关键词
臂丛神经损伤
磁共振成像
磁共振神经成像
brachial plexus injury
magnetic resonance imaging
magnetic resonance neurography
