腰椎骨质增生MRI信号类型与CT结构特点对照研究  

Comparative study of MRI signal type and CT structural characteristics on lumbar hyperostogeny

作　　者：王筱璇[1] 吕发金[1] 李鹏[1] 张丹[1] 彭聪[1] 刘丹[1] 

机构地区：[1]重庆医科大学附属第一医院放射科,400016

出　　处：《重庆医学》2013年第32期3881-3882,3886,共3页Chongqing medicine

摘　　要：目的分析腰椎骨质增生MRI信号类型和CT结构特点间的对应关系,探讨腰椎退变椎体重塑的可能机制。方法回顾性分析2011年7月至2012年1月在该院同时行腰椎MRI和CT检查的45例受检者的影像学资料,CT数据行容积再现(VR)和多平面重组(MPR)观察骨质增生结构特点,记录腰椎有无骨质增生形成、骨质增生MRI信号类型和CT表现,并分析二者之间的关系。结果 45例受检者的225个椎体中,38个椎体有肉眼可见骨质增生形成,其MRI信号Ⅰ型2个(5.3%)、Ⅱ型4个(10.5%)、Ⅲ型10个(26.3%)和Ⅳ型22个(57.9%);CT骨质增生结构特点A型4个(10.5%)、B型11个(28.9%)和C型23个(60.5%);A型骨质增生MRI信号全为Ⅱ型(100%),B、C型骨质增生MRI信号多为Ⅳ型(分别72.7%和65.2%)。结论腰椎骨质增生不同MRI信号类型和CT结构特点间存在对应关系,骨质增生不断塑形完成腰椎退变时椎体重塑过程。Objective To investigate the relationship between MRI signal type and CT structural characteristics on lumbar hy- perostogeny,and the possible mechanism of vertebral body remodeling on degenerative lumbar spine. Methods Imaging data of for- ty-five subjects who were referred for both MRI and CT imaging of the lumbar spine from July 2011 to January 2012 were retro- spectively analyzed. Volume Rendering（VR） and Multi-Planar Reformation（MPR） were used to observe structural characteristics of osteophyte. Osteophyte formation,MRI signal type and CT features of osteop＇hyte were recorded, then analyzed their relationship. Results 45 subjects contain 225 vertebral bodies, there were 38 vertebral bodies containing osteophyte visible to naked eye. The four types of MRI signal were type I to type 1V ,accounting for 2（5.3%） ,4（10.5%） ,10（26.3%） and 22（57.9%） ,respectively. The three types of CT structural characteristics are type A to type C, accounting for 4（10.5%）,11（28.9%） and 23（60.5%）,re- spectively. The main MRI signal of type A is type IT （100%） ,and that of type B and C are both type IV （72.7% and 65.2%）. Conclusion There is a corresponding relation between MRI signal type and CT structural characteristics on lumbar hyperostogeny. Constant reconstruction of osteophyte remodels vertebral body on degenerative lumbar spine.

关 键 词：骨质增生 腰椎 磁共振成像 体层摄影术 螺旋计算机 

分 类 号：R681.5[医药卫生—骨科学]