16层螺旋CT重建技术在寰枢椎损伤中的诊断价值

The application of 16-slice spiral CT three-dimensional reconstruction in atlantoaxial injury

目的:探讨16层螺旋CT及重建技术在寰枢椎损伤中的诊断价值。方法:回顾性分析我院33例寰枢椎损伤患者的16层螺旋CT资料。结果:33例寰枢椎损伤中12例为多处骨折,4例单纯性寰枢关节半脱位,C1骨折13例共17处,C2骨折16例24处,C2齿状突Ⅱ型骨折致寰枢椎脱位6例。轴位CT、多平面重建(MPR)、曲面重建(CPR)、容积再现(VRT)显示单纯性寰枢椎关节脱位3、4、4、4处以及C1骨折17、16、17、16处以及C2骨折22、24、24、19处以及齿状突Ⅱ型骨折致寰枢椎脱位5、6、6、6处。结论:16层螺旋CT扫描和三维重建,可清晰显示寰枢椎骨折及脱位情况,可作为寰枢椎损伤检查的首选。

Objective：To discuses the diagnostic value of 16-slice spiral CT in atlas and axis injury. Methods：16-slice spiral CT imagings of 47 patients with atlas and axis injury were restrospectively analysed. Results： In the 33 cases, 12 cases were multiple fracture. Axial CT, multiplanar reconstruction （MPR）, curve planar reconstruction （CPR） and volume rendering technique （VRT） demonstrated simple atlas-axis joint dislocation 3, 4, 4, 4 sets, and atlas fracture 17, 16, 17, 16 sets and axis fracture 22, 24, 24, 19 sets and atlas-axis joint dislocation caused by type II fracture of odontoid process 15, 17, 17, 16 sets. Conclusion：The combination of axial images and MPR, CPR,VRT provides valuable diagnostic and anatomic information of atlantoaxial injury. Multi-slice spiral CT（MSCT）scanning is the first choice of examination for the patients with atlantoaxial injury.