CUBE-FLEX序列显示全脊柱神经根的可行性研究

The feasibility study of displaying full nerve roots using CUBE-FLEX sequence

目的:探讨CUBE-FLEX序列全脊柱神经根成像技术的可行性。方法:采用GE Signa HDxt 3.0T超导磁共振成像系统,对20例健康志愿者及6例神经根病变患者行MR全脊柱神经根成像检查,利用一次定位、自动进床和水脂分离技术的三维容积采集(CUBE-FLEX)序列,分3段行冠状面扫描,即颈段、胸段、腰骶段,将原始图像传至图像后处理工作站,再利用Pasting软件将3段扫描图像自动无缝拼接显示全脊柱神经根图像,全面显示神经根及其病变。结果:20例健康志愿者中,17例的CUBE-FLEX图像能全面、直观、清晰显示周围神经根,2例脊柱侧弯者部分神经根显示不佳,1例因两段脊神经根扫描中体位发生变动,致使脊髓正中层面发生错位,从而影响全视野神经根的观察。6例患者CUBE-FLEX能完整显示周围神经根病变及其空间关系,其中臂丛神经损伤1例,骶管神经根囊肿2例,神经纤维瘤病3例。结论:CUBE-FLEX全脊柱神经根成像技术能全面清楚显示全脊柱神经根的空间信息及神经根病变,有利于空间定位,具有较好的整体观和临床应用价值。

Objective： To investigate the feasibility of displaying the full spinal nerve root using CUBE-FLEX sequence. Methods： HDXT3.0 superconducting magnetic resonance imaging SIGNA GE system was used. 20 normal volunteers and 6 diseases related nerve root were undergone on HDXT3.0 MRI systems using CUBE FLEX sequence with 3D water fat separated volume acquisition. A segmented scan （cervical, thoracic and lumbar sacral section） was carried out,the original images was transferred to GE SUN ADW4.4 workstations and was mapped a picture with a pasting technique. The post-processing technique included multiple plain reconstruction （MPR） and maximums intensity projection （MIP）. Results： In 20 normal volunteers using CUBE-FLEX sequence, the general nerve roots were presented with an overall and clearly visual in 17 cases;some nerve roots would not be shown in 2 rachioscoliiosis;one failure was displayed because the position changed. 6 diseases related nerve root were showed clearly including one brachial plexus injury, two sacral nerve root cysts and three nerve fibromas. Conclusion：Full spinal nerve root imaging using CUBE-FLEX sequence can show clearly the spatial relationship of the nerve root and disease, It is in propitious to spatial localization and has great role for clinic.