改良MRI对臂丛神经节前损伤的诊断价值

目的探讨新的MRI成像方式对臂丛神经节前损伤的诊断价值。方法回顾性分析19例临床怀疑臂丛神经节前损伤患者的临床及MRI资料,并与手术及肌电图检查对照,统计新的MRI方法诊断臂丛神经节前损伤的敏感性、特异性和准确性。结果 19例患者中臂丛神经损伤者15例,67对受损臂丛神经中MRI诊断出55对。诊断的敏感性为82.09%(55/67),特异性为40.00%(8/20),准确性为84.00%(63/75)。结论新的MRI成像方法可清晰显示臂丛神经结构及走行,可准确诊断臂丛神经节前损伤,为临床提供了臂丛神经节前损伤诊断的一种MRI成像新方法。

Diagnostic value of new MRI for brachial plexus preganglionic injury

Objective To investigate the diagnostic value of new MRI for brachial plexus preganglionic injury. Methods The clinical data and MRI examination results in 19 patients with dubitable brachial plexus preganglionic injury were analyzed, and the data and examination results were compared with those of operation and electromyography. The sensitivity, specificity and accuracy of new MRI in diagnosis of brachial plexus preganglionic injury were statistically analyzed. Results Among 19 patients, there were 15 cases of brachial plexus preganglionic injury,among 67 pair of injured brachial plexus nerves,55 pair of them were detected by MRI. The sensitivity, specificity and accuracy of new MRI in diagnosis of brachial plexus preganglionic injury were 82.09% （ 55/67 ）, 40.00% （8/20） and 84.00% （63/75）, respectively. Conclusion New MRI imaging method can clearly show the structures and direction of brachial plexus nerves, and can exactly diagnose brachial plexus preganglionic injury, which is a new MRI imaging method in diagnosis of brachial plexus preganglionic injury.