螺旋CT在寰枢椎病变中的应用  

Application of Spiral CT in Atlantoaxial Lesion

作　　者：韩华[1] 姜永宏[1] 马晓文[1] 

机构地区：[1]西安市红十字会医院放射科,陕西西安710054

出　　处：《实用放射学杂志》2008年第3期311-313,326,共4页Journal of Practical Radiology

摘　　要：目的探讨三维CT重建对寰枢椎病变的诊断价值。方法分析124例寰枢椎病变的三维CT重建图像,并与常规CT和X线平片比较。结果124例寰枢椎病变中,骨折42例,旋转性脱位73例,齿状突发育不良4例,先天性畸形5例。其中X线诊断89例,常规CT诊断109例,MIP诊断121例,SSD诊断122例,MPR及VR诊断124例。结论三维CT重建能发现轻微旋转脱位及伴发的齿状突畸形,是诊断寰枢椎旋转性脱位的最佳方法;寰枢椎骨折的3D和MPR重建是轴位CT扫描有价值的补充,与常规CT和X线平片结合,可明显提高诊断的准确性。Objective To evaluate the diagnostic value of three - dimeusional CT（3DCT） in atlantoaxial lesions. Methods The findings of 3DCT were analyzed and compared with conventional CT and radiography in 124 patients with atlantoaxial disease. Results 124 cases of atlantoaxial lesion included fracture in 42,atlantoaxial rotatory dislocation in 73, hypoplasia of the dens in 4, and congenital atlantoaxial deformity in 5. Among the 124 cases, 89 cases were diagnosed by X -ray, 109 cases by conventional CT, 121 cases by MIP, 122 cases by SSD, 124 cases by MPH and VR. Conclusion 3DCT can find the slight rotatory dislocation, so it is the most effective means for the diagnosis of atlantoaxial rotatory dislocation. 3D and MPR of spiral CT are useful in the diagnosis of atantoaxial fracture. Combining conventional CT and X - ray film with 3DCT can improve the acuracy of the diagnosis.

关 键 词：寰枢椎 骨折 先天性畸形 脱位 X线摄影 体层摄影术 X线计算机 

分 类 号：R681.8[医药卫生—骨科学] R814.41[医药卫生—外科学]