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首页> 外文期刊>Neuroimaging clinics of North America >The brachial plexus: normal anatomy, pathology, and MR imaging.
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The brachial plexus: normal anatomy, pathology, and MR imaging.

机译：臂丛神经：正常解剖，病理学和MR成像。

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摘要

The brachial plexus is the most technically and anatomically challenging area of the peripheral nervous system for diagnostic imaging. Marked improvements in spatial and contrast resolution of plexus images have resulted from the use of phased-array technology and newer MR pulse sequence designs. This article presents case material incorporating these improvements and discusses the primary factors that continue to limit MR image quality, such as inhomogenous fat suppression, motion artifacts, and small vessels that mimic or obscure plexus components, and potential solutions and imaging alternatives. Brachial plexus anatomy and its appearance on multiplanar MR images are reviewed. The morphologic features and MR signal characteristics that have been found useful in distinguishing between normal and abnormal plexus components,and in detecting neuropathic lesions, are addressed in the context of clinical indications for plexus imaging as follows: mass involving the plexus, traumatic injury, entrapment syndrome, posttreatment evaluation, and miscellaneous conditions.
机译：臂丛神经是外周神经系统诊断成像最技术和解剖上最具挑战性的区域。相控阵技术和较新的MR脉冲序列设计的使用已导致神经丛图像在空间和对比度分辨率方面的显着改善。本文介绍了结合了这些改进的案例材料，并讨论了继续限制MR图像质量的主要因素，例如不均匀的脂肪抑制，运动伪影以及模仿或模糊神经丛组件的小血管，以及潜在的解决方案和成像替代方案。回顾了臂丛神经解剖学及其在多平面MR图像上的出现。已发现用于区分正常和异常神经丛成分以及检测神经性病变的形态学特征和MR信号特征在以下方面进行了神经丛影像学的临床指征：涉及神经丛的肿块，创伤性损伤，压迫综合征，治疗后评估和其他情况。

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