MR自旋回波与TIRM组合序列对椎体终板骨软骨炎的诊断价值  

Diagnostic value of MR SE and TIRM sequence in osteochondritis of vertebra end-plate

作　　者：闻建民[1] 徐庆云[1] 

机构地区：[1]浙江中医药大学附属第二医院放射科

出　　处：《放射学实践》2010年第8期923-926,共4页Radiologic Practice

摘　　要：目的：研究椎体终板骨软骨炎的SE序列与TIRM序列MR表现特征,评价对该病变的MRI诊断及鉴别诊断价值。方法：搜集105例经MRI检查确诊的腰椎椎体终板骨软骨炎的图像资料,对其MRT1WI、T2WI、TIRM序列表现进行回顾性分析,其中男93例,发病率约89%;女12例,发病率约11%。结果：采用常规自旋回波T1WI、T2WI序列与TIRM序列组合,本组所有椎体终板骨软骨炎病例,均可显示不同程度的椎间盘变性或膨（突）出表现,椎间盘及相邻椎体边缘出现斑片状、条片状异常信号灶,T1WI序列呈低信号或高信号,T2WI序列呈高信号或低信号,TIRM序列呈低信号或等信号。78例可见Schmorl结节突入椎体内呈纽扣样缺损。按照Modic等对椎间盘退行性病变有关软骨终板变性的分型标准,105例病例中,Ⅰ型病例7例,约占病变的7%;Ⅱ型病例87例,约占病变的83%;Ⅲ型病例11型,约占病变的10%。结论：MRTIRM序列具有抑脂彻底和＂亮水＂特性,采用常规自旋回波T1WI、T2WI序列与TIRM序列组合,将增强对椎体终板骨软骨炎的MRI认识,提高其诊断与鉴别诊断的准确率。Objective：To discuss the MR features of vertebra end-plate osteochondritis on SE and TIRM sequence and evaluate its diagnostic value.Methods：The MRI features of 105 cases with vertebra end-plate osteochondritis were reviewed retrospectively.Among them,there were 93 males and 12 females,aged from 40-84 years （average 64）.MRI sequence included conventional SE T1WI,T2WI and TIRM.Results：According to MODIC classification,there were 7 cases in Type Ⅰ （7%）,87 cases in Type Ⅱ （83%） and 11 cases in Type Ⅲ （10%）.All cases with vertebra end-plate osteochondritis had different degrees of vertebra disc buldging and degeneration,vertebra end-plate could be demonstrated as hypo-and iso-or hyper-intensity on T1WI,T2WI and TIRM in different phases.Schmorl node was found in 78 cases.Conclusion：MR TIRM sequence has the characteristic of fat saturation.The diagnostic accuracy of vertebra end-plate osteochondritis can be improved by a combination of SE with TIRM sequence.

关 键 词：骨软骨炎 磁共振成像 诊断 鉴别 

分 类 号：R445.2[医药卫生—影像医学与核医学] R816.8[医药卫生—诊断学]