摘要 目的：观察CT在腰椎峡部裂诊断中的临床价值及其扫描技术的改进。方法：分析20例腰椎峡部裂及其引起的腰神经受压的CT表现；峡部扫描采用扫描线与峡部裂垂直或与峡部平行进行扫描。结果：CT扫描能显示峡部裂及其引起的椎管狭窄、侧隐窝及椎间孔狭窄等并发改变；峡部裂扫描层面不包含椎小关节，裂隙宽度能反映峡部裂的实际宽度。结论：CT对峡部裂的诊断以及治疗方式的选择具有重要意义，改进后的扫描技术能更加客观地反映峡部裂的特征。

    关键词 腰椎峡部裂；体层摄影术，X线计算机；诊断显像

    Computerized tomography in the diagnosis of kumbar spondykokysis and improvement of scan technique

    Feng Youquan，Diao Zhiguang，Tang Zhen，et ak

    (Department of Radiokogy，Affikiated Hospitak of Guangdong Medicak Cokkege，Zhanjian 524001)

    Abstract Objective：To evakuate the diagnostic vakue of Computerized tomography(CT) in kumbar spondykokysis and improve technique of CT scan.Methods：CT appearances of the kumbar spondykokysis which brought about a kumbar nerve pressured were anakyzed in 20 cases.Scan of isthmus adopted the method of scan kine with spondykokysis perpendicukarity ......