摘要
目的：探讨ＬＰＭＮ的好发部位和对硬膜囊、神经根的影响。材料和方法：回顾性分析１４９例ＬＰＭＮ的ＣＴ表现、好发部位及其原因，重点讨论ＬＰＭＮ对硬膜囊和神经根的影响。结果：根据ＬＰＭＮ的部位将其分为四型：（１）上缘后正中型（４６．１％），易压迫硬膜囊和双侧或单侧神经根。（２）上缘后外侧型（２４．６％），主要引起同侧神经根受压，同时也易压迫硬膜囊外前部。（３）下缘后正中型（２６．３％），主要造成硬膜囊受压。（４）下缘后外侧型（３．０％），易压迫硬膜囊和同侧脊神经。结论：ＣＴ能清楚显示ＬＰＭＮ的改变及其对硬膜囊和神经根的影响，是ＬＰＭＮ最理想的检查方法。
Purpose: To explore the most common locations of LPMN and the changes of dural sacs and nerve roots in the cases of LPMN. Materials and methods: The CT findings. most common locations and causes of 149 cases of LPMN were analysed retrospectively. It was discussed emphatically that the changes of dural sacs and nerve roots were caused by LPMN. Results: According to the locations of LPMN, four types were proposed: (1) superior marginal posterior median type (46.1%): Dural sacs and double or single side nerve roots were easyly pressed. (2) superior marginal posterior exterior type (24.6%): Nerve roots of same side were pressed in all cases. Meanwhile, exterior anterior part of dural sacs were pressed in most cases. (3) inferior marginal posterior median type (26.3%): Dural sacs were pressed in all cases. (4) inferior marginal posterior exterior type (3.0%): Dural sacs and same side spinal nerves were easyly pressed. Conclusion: CT can show clearly the changes of LPMN and dural sacs nerve roots. CT is the best examination for LPMN.
出处
《中国医学影像学杂志》
CSCD
1997年第3期146-148,共3页
Chinese Journal of Medical Imaging
关键词
脊柱
腰椎体后缘
软骨结节
椎间盘移位
CT
Vertebral column
Vertebral posterior marginal intraosseous cartilaginous node
Displacement of intertebral disc
Tomography, X ray computed
