The purposes of this study were to optimize the protocol of brachial plexus MRN for brachial plexus injuries, and to study the diagnostic performance of the protocol, using clinical contexts as the reference standard. Twenty-one patients with brachial plexus injury were performed brachial plexus MRN (T2-weighted image-high resolution, mDIXON and diffusion weighted image) before conventional myelography. The diagnostic yield of T2-weighted image-high resolution was comparable to conventional myelography. The combination of T2-weighted image-high resolution and mDIXON had the highest diagnostic yield and recommended for the evaluation of brachial plexus injuries.
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