3.0T磁共振全身神经根成像在神经纤维瘤病中的应用价值  

The application of 3.0T systemic nerve root imaging in neurofibromatosis

作　　者：万常华[1] 郑光[1] 胡军武[1] 夏黎明[1] 

机构地区：[1]华中科技大学同济医学院附属同济医院MRI室,武汉430030

出　　处：《放射学实践》2011年第9期988-991,共4页Radiologic Practice

摘　　要：目的:探讨3.0T磁共振三维容积采集水脂分离技术(CUBE-FLEX)序列全身神经根成像在神经纤维瘤病中的应用价值。方法:采用GE SIGNA HDxt 3.0T超导磁共振成像系统,对20例神经纤维瘤病患者行MRI全身神经根成像检查,利用一次定位,自动进床和水脂分离技术三维容积采集,分4段行冠状面扫描,即颈段、胸段、腰骶段、下肢段,将原始图像传至工作站行后处理,将4段扫描图像自动无缝拼接显示全身神经根图像,评估图像质量及病变的空间位置。结果:本组20例神经纤维瘤病患者中19例的CUBE-FLEX序列后处理图像能整体、直观、全面、清晰地显示周围神经根、神经纤维瘤以及两者的空间关系;1例因原始图像分段扫描过程中患者体位发生变动,致使脊髓正中层面发生错位导致拼接失败,从而影响全视野神经根的观察。神经纤维瘤病在全身神经根成像中表现为沿神经纤维走行分布的均匀或不均匀高信号影,病变多发、弥漫且大小不一,呈圆形或者椭圆形,边界清楚。结论:3.0T MRI CUBE-FLEX序列全身神经根成像能整体、全面、清楚地显示神经根、神经纤维瘤及两者的空间关系,且有利于发现小的神经纤维瘤病灶,具有较高的临床应用价值。Objective：To investigate the application of systemic nerve root imaging in neurofibromatosis using 3.0T MRI CUBE-FLEX.Methods：20 cases of neurofibromatosis confirmed by operation underwent systemic nerve root imaging with 3.0T MRI（GE SIGNA HDxt） scanner.Four segmental spinal cord images（Cervical,thoracic,lumbar and sacral section） were obtained respectively using an automatic movement of table combined only one location and water fat separated technology.Then the original images were transmitted to post-processing workstations and was showed a whole body nerve root image using MPR and paste technology.Results：In 19 subjects the whole visual nerve root and the location of neurofibromatosis can be showed clearly because of using a full body nerve root imaging technology.Only in one case,it was failed due to the changed posture of patient during scanning.Neurofibromatosis presented multiple lesions with different sizes,which distributed along nerve root and had round,sharp margin with homogenous or inhomogenous hyperintensity in systemic nerve root imaging.Conclusion：Systemic nerve root imaging can present clearly the spatial information and neuropathy of all spinal nerve roots.It helps to find smaller neurofibromatosis,and it has great value in clinical applications and good integrity for the spatial location of neurofibromatosis.

关 键 词：磁共振成像 脊神经根 神经纤维瘤病 

分 类 号：R739.4[医药卫生—肿瘤]