两种不同CT扫描方法对腰椎峡部裂诊断的应用价值  

Application value of two different CT scanning methods for diagnosis of lumbar spondylolysis

作　　者：郑显平[1] 

机构地区：[1]四川省石棉县人民医院放射科,625400

出　　处：《中国现代药物应用》2014年第12期6-8,共3页Chinese Journal of Modern Drug Application

摘　　要：目的探讨两种不同CT扫描方法对腰椎峡部裂诊断的应用价值。方法采用常规扫描(定位线与椎弓垂直的扫描方法 )和反角度扫描(定位线与椎弓平行的扫描方法 ),包括整个椎弓,层厚3 mm、层距3 mm,分析50例腰椎峡部裂的CT表现。结果不同角度扫描所显示的腰椎峡部断裂CT影像表现有差别,常规扫描显示腰椎峡部裂46例,2例可疑,2例未见显示,但对椎管变形、狭窄及硬膜囊、神经根受压等继发改变显示良好;反角度扫描清楚显示50例腰椎峡部裂,腰椎峡部裂隙宽度、增生硬化及裂隙周围骨块显示良好,但对椎管狭窄、硬膜囊、神经根受压等显示不如前者。结论两种不同CT扫描方法对椎弓峡部裂及继发改变各有优劣,两种扫描方法相结合能较全面、客观显示腰椎峡部裂及继发改变,对诊断腰椎峡部裂有应用价值。Objective To explore the application value of two different CT scanning methods for diagnosis of lumbar spondylolysis. Methods To analyze 50 cases of CT manifestations of lumbar spondylolysis by routine scan（base-line perpendicular to the pedicle） and angle scan（base-line parallel to the vertebral arch） respctively, including scanning the whole vertebral arch, 3 mm thickness, 3 mm interlayer. Results CT imaging manifestation of lumbar spondylolysis acquired respectively with two kinds of scanning methods were different. Routine scan showed 46 cases of lumbar spondylolysis, 2 cases of suspicious, 2 cases did not see. However, it showed more clearly for deformation, vertebra canal stenosisl dural sac and nerve root compression. Angle scan clearly showed that 50 cases with lumbar spondylolysis, lumbar spondylotysis crack width, hyperplasia of hardening and the surrounding bone block, but for stenosis, dural sac and nerve root compression were worse than routine scan. Conclusion Two different CT scan methods have advantages and disadvantages in the displaying of lumbar spondylolysis and all secondary change, combined two kinds of scanning methods can, show objectively lumbar spondylolysis and secondary change, which has application value in diagnosis of lumbar spondylolysis.

关 键 词：腰椎峡部裂 体层摄影术 X线计算机 

分 类 号：R816.8[医药卫生—放射医学]