腰椎峡部骨微细结构的Micro CT研究  

Bone Microstructure Study of the Lumbar Isthmus by Micro CT

作　　者：唐曦[1] 刘洪[2] 李鑫[3] 吴少平[1] 黄丽[1] 冯俊榜[1] 雍刘军[4] 刘卫华[1] 

机构地区：[1]成都医学院第一附属医院,成都610500 [2]成都医学院校医院内科,成都610500 [3]成都医学院教学保障处,成都610500 [4]成都医学院人体解剖与组织胚胎学教研室,成都610500

出　　处：《成都医学院学报》2014年第2期134-138,共5页Journal of Chengdu Medical College

基　　金：四川省卫生厅科研基金(NO:120472)

摘　　要：目的 通过Micro CT检测腰椎峡部,运用Micro CT的后处理功能-骨分析,检测腰椎峡部骨微细结构,并探讨其变化趋势.方法 对30具成人尸体标本的L1～L5双侧峡部,共300个干燥腰椎峡部进行扫描,检测峡部的骨微细结构参数,并分析比较L1～L5峡部骨微细结构的差异性.结果 L5腰椎峡部BMD值最低,L2腰椎峡部BMD值次之,L4腰椎峡部BMD值最高;L5和L2腰椎峡部BV/TV值较低,L4腰椎峡部BV/TV值最高;L5和L2腰椎峡部Tb.Th值较低,L4腰椎峡部Tb.Th值最高;L5腰椎峡部Tb.Sp值最高,L1和L4腰椎峡部Tb.Sp值较低.结论 L2、L4峡部骨质较腰椎各峡部骨质密集、骨小梁较粗;L1、L5峡部骨质较腰椎各峡部骨质稀疏,骨小梁较细;L3峡部骨质微细结构居腰椎各峡部骨质微细结构的一般水平.Objective To detect lumbar isthmus bone microstructure and to explore the change tendency among them through Micro CT and its post-bone analysis processing function. Methods The L1-L5 lumbar isthmus on both sides of 30 adult specimens, total 300 dry lumbar isthmus, were scanned to detect the isthmus bone microstructure parameters, and to analyze and compare the microstructure differences among L1-L5 isthmus bones. Results The bone mineral density （BMD） of 1.5 lumbar isthmus was the lowest, followed by that of L2 lumbar isthmus. The BMD of L4 lumbar isthmus was the highest. The BV/TV of L2 and L5 lumbar isthmus were low, but that of L4 lumbar isthmus was high. The Tb. Th of L2 and L5 lumbar isthmus were low, and that of L4 lumbar isthmus was the highest. The Tb. Sp of L5 lumbar isthmus was the highest, and those of L1 and L4 lumbar isthmus were low. Conclusion The isthmic bones of L2 and L4 lumbar isthmus bone are dense, while their trabeeular bones are thicker; the isthmic bones of L1 and L5 lumbar isthmus bone are sparse, while their trabecular bones are fine; the bone microstructure parameters of L3 lumbar isthmus are on the average values.

关 键 词：腰椎峡部 MICRO CT 骨分析 骨微细结构 

分 类 号：R814.42[医药卫生—影像医学与核医学]