继发椎管狭窄与脊髓亚急性联合变性MRI异常信号的相关性  

MRI study of relationship between secondary spinal canal stenosis and subacute combined degeneration

作　　者：陈卫鹏[1] 林海韬 姚沛旭[1] 庄儒耀[2] 周实[3] 曾向廷[4] 徐秋玉[1] CHEN Weipeng LIN Haitao YAO Peixu ZHUANG Ruyao ZHOU Shi ZENG Xiangting XU Qiuyu(Department of MRI ,the People＇s Hospital of Jieyang ,Jieyang 522000,Chin)

机构地区：[1]揭阳市人民医院磁共振室,广东揭阳522000 [2]汕头大学医学院第一附属医院 [3]汕头大学医学院附属潮南民生医院 [4]汕头市中心医院

出　　处：《实用放射学杂志》2016年第10期1506-1509,共4页Journal of Practical Radiology

摘　　要：目的：研究脊髓亚急性联合变性（SCD）的 MRI 表现特点,探讨继发椎管相对狭窄与 SCD 的 MR 异常信号的相关性。方法收集56例 SCD 患者的临床及 MRI 影像资料,分析 SCD 病例中椎间盘膨出/突出、黄韧带增厚、后纵韧带增厚或两者以上协同作用下的椎管相对狭窄与脊髓内病灶的表现特点。结果56例 SCD 患者中,MRI 检查脊髓表现有病灶的45例,均表现为典型的SCD 影像表现。继发椎管相对狭窄并脊髓信号异常者37例,继发椎管相对狭窄脊髓未见异常信号者2例,无继发椎管相对狭窄脊髓信号异常者8例,无继发椎管相对狭窄脊髓也未见异常信号者9例。比较采用χ2检验统计继发椎管相对狭窄与脊髓异常信号有显著性差异（P 〈0.05）。37例 SCD 有继发椎管相对狭窄中15例行物理治疗后较对照组病程缩短。结论继发椎管相对狭窄致脊髓微循环障碍是导致 SCD 脊髓病变 MRI 表现更显著或更易于显现的重要因素。Objective To investigate MRI characteristics of subacute combined degeneration（SCD）with secondary spinal canal stenosis.Methods The clinical and MRI imaging data of 56 patients with SCD were collected to analyze the performance characteristics between spinal cord lesions and spinal canal stenosis,which depended on the synergism of lumbar disc bluge or herniation,degenerative thickening of the ligament flavum and posterior longitudinal ligament.Results Among 56 SCD cases underwent MRI scan,45 cases were combined with spinal cord lesions which showed typical signs of SCD.37 patients were secondary spinal canal stenosis with typical signs,but 2 showed no typical signs.8 patients were no secondary spinal canal stenosis and showed typical.9 cases showed neither spinal cord lesions nor secondary spinal canal stenosis.There was significant difference （P 〈0.05）between relative secondary spinal canal stenosis and spinal anomaly signal.The course of 1 5 cases were shortened after treated by physical in 37 cases of SCD with secondary spinal canal. Conclusion The secondary spinal canal stenosis can cause microcirculation dysfunction of the spinal cord,which is a key factor contributing to the imaging manifestation.

关 键 词：脊髓亚急性联合变性 继发椎管相对狭窄 磁共振成像 

分 类 号：R744[医药卫生—神经病学与精神病学] R681[医药卫生—临床医学]