结论：核磁检查可以显示椎间孔周围臂丛神经根的情况，对臂丛神经节前损伤的定性定位可作出较准确的判断。
Conclusion MRI can show the nerve rootlets within the intervertebral foramen, thus, can make a correct qualitative and level diagnosis in brachial plexus pre-ganglionic injuries.
结果：6例增强后t 1w图象均表明GD - DTPA可明显增强臂丛神经的显示效果，特别是能改善对臂丛神经椎管外部分的显示。
Results: the T1W imaging results of 6 cases show that GD - DTPA could greatly improve the demonstration of the brachial plexus both inside and outside the spinal canal part.
创伤后臂丛神经麻痹往往累及臂丛上干，导致肩部肌肉的麻痹。
Posttraumatic brachial plexus paralysis invariably involves the upper roots leading to paralysis of the shoulder region musculature.
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