多层螺旋CT三维重建技术对外伤性脊椎骨折的诊断价值  

The applications of multislice spiral CT in the diagnosis of spinal fractures

作　　者：石建军[1] 

机构地区：[1]北京市门头沟区医院放射科, 北京市 102300

出　　处：《中国基层医药》2011年第19期2615-2616,共2页Chinese Journal of Primary Medicine and Pharmacy

摘　　要：目的探讨多层螺旋cT三维重建技术对外伤性脊椎骨折的诊断价值。方法85例脊椎骨折患者行螺旋cT薄层扫描检查，并在工作站行多层面重建图像（MPR）和3D图像重建。观察和分析椎体骨折的部位、椎体序列、椎体高度、骨折线、椎体附件和旋转／脱位等显示情况。结果85例患者中cT共检出104个椎体骨折：C4一，4椎，T69椎，T，010椎，Tl，16椎，T。222椎，L119椎，k6椎，L38椎，L410椎。螺旋CT检查均明确地显示了骨折部位，轴位CT、MPR在显示细小骨折上有优势，MPR显示骨折线的走行和移位较具优势，三维重建图像（3D）立体呈现骨结构的空间变化、骨碎片压迫椎管情况。结论螺旋cT横轴位、MPR及3D联合应用，能多方位提供临床医师所需信息，有利于治疗方案的选择。Objective To evaluate the value of three dimensional spiral computed tomography（3D SCT） and its reconstruction technique in the diagnosis of spinal fracture. Methods 85 patients of vertebral fractures were exam- ined with helical CT thin scan. After data were transferred to computer workstation, MPR and 3D images were recon- structed. Each study was evaluated for showing the level of the fractures, vertebral alignment, vertebral height loss, line of fractures, posterior element involvement, narrowing of the vertebral canal, and the grade of rotation and/or disloca- tion. Results 85 patients were detected in 104 CT vertebral fractures：C4 ~ C7 4 vertebra,T6 9vertebra,T10 10 verte- bra,Tn 16 vertebra,T12 22 vertebrae, L1 19 vertebrae, L2 6vertebra, L3 8 vertebrae, L4 10 vertebra. Of 85 cases, The fratures were displayed by the images of CT, MPR is more supcrior in displaying alignment and displacement of frame than thoso of other techniques ,MPR has an advantage in displaying the small fractures ,3D displays the space of bone structures, and neural canal compression. Conclusion Spiral CT diagnosis of vertebral fractures had a high applica- tion value. Axial, MPR and 3 D in combination, could clear the degree of injury, three-dimensional, visual, multi-direc- tional information needed to provide clinicians ,will help the choice of treatment.

关 键 词：脊柱骨折 成像 三维 体层摄影术 X线计算机 

分 类 号：R816[医药卫生—放射医学] R6[医药卫生—临床医学]