摘要：目的：描述50岁以上中老年人脊椎狭窄的有关CT表现及测量，探讨中老年人脊椎狭窄的特征。方法：采用CT横断面薄层扫描，并测量硬膜囊矢状径、黄韧带前间隙、侧隐窝宽度，分析它们与脊髓和/或神经根受压的关系。结果与结论：中老年人椎管狭窄多有椎骨小关节及侧隐窝狭窄，而黄韧带前间隙<5mm是神经根压迫较为可靠的依据。

    关键词：椎间盘移位；脊神经根；诊断影像

    The CT Takes the Gauge of Narrow Study in Tube in Vertebrate in Old-age Waist in Inside

    LI Rong-cheng

    (The Second Affiliated Hospital of Chifeng, Neimenggu Chifeng 024000, China)

    Abstract: Objective: Describe the performance and measurement of narrow acanthi on CT of the middle-aged person and the elderly above 50,and discuss the character of the narrow acanthi of them.Method:Folium sean in the transect with CT,and measure the spinal cord is in front and back the path, Ex- cleft in yellow ligaments,and the width of the side sinks the nest,and analyse the relationship between them and spinal cord or nerve-root pressing.Result and Conclusion:The middle-aged person and the elderly of narrow vertebrate tube may suffer from small joint in spine and the side sinks the nest narrow and Ex- cleft in yellow ligaments<5mm is the reliable basis of nerve-root pressing. ......