摘要
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 back ground body signal suppression,DWIBS)扫描,观察各序列中臂丛神经的表现。结果常规T1WI、T2WI臂丛神经呈等信号,横轴位反转恢复(TIRM)序列呈稍高信号,DWIBS呈明显高信号。横断面上,显示神经根自椎间孔处穿出,行于斜角肌间隙,后与锁骨下动脉及腋动脉伴行;冠状面上,显示为由C5～T1神经孔旁起始的条索状结构。结论联合常规及DWIBS序列,可全面、清晰地显示臂丛神经。
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.
出处
《海南医学》
CAS
2011年第15期95-97,共3页
Hainan Medical Journal
关键词
臂丛神经
磁共振成像
弥散加权成像
扫描方案
Braehial plexus
Magnetic resonamce imaging
Diffusion-weighted imaging
Scan protocol
