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.
目的：探讨MRI检查在诊断臂丛神经节前损伤中的影像表现和诊断价值。
Objective: To evaluate the value of MR Imaging (MRI) in diagnosing brachial plexus pre-ganglionic injury.
结论脊髓造影CT可以显示椎间孔周围神经根的情况，对臂丛神经节前损伤的定性定位可做出准确判断。
Conclusion ct Myelography can show the nerve rootlets within the intervertebral foramen, thus, help make a correct qualitative and level diagnosis in brachial plexus pre-ganglionic injuries.
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