臂丛神经MRI扫描方案探讨

目的 探讨臂丛神经图像常规扫描方案以及各个序列臂丛神经的不同表现.方法 对18例健康志愿者分别行常规及弥散加权背景抑制神经成像(Diffusion weighted whole body imaging with background body signal suppression,DWIBS)扫描,观察各序列中臂丛神...

MRI scan protocols of brachial plexus

Objective To analyze the appearance of normal brachial plexus employing different MRI sequences,and determine the best MRI scan protocol for brachial plexus.Methods A total of 18 healthy volunteers were examined with routine and DWIBS sequences.The manifestations of normal brachial plexus in these sequences were observed.Results The signal intensity of brachial plexus was isointense on T1WI and T2WI,lightly hyperintense on TIRM images,and significantly hyperintense on DWIBS.On the transverse sections,the nerve roots appeared as linear structure exiting from the imervertebral foramen and passing through the scalene gap,and then surrounding flow void of the subclavian artery.On coronal images,the roots appeared as linear structures exiting from C5～T1 intervertebral foramen and collecting to infraclavicular and axillary fossa.Conclusion By the combination of routine and DWIBS sequences,the brachial plexus can be manifested comprehensively and distinctly.