前言目的:探讨MRI在剥脱性骨软骨炎（OCD）诊断中的价值。方法:回顾性分析15例经膝关节镜及手术证实的剥脱性骨软骨炎MRI影像资料。评价剥脱性骨软骨炎的MRI特点。结果:15例OCDMRI表现为关节持重部位软骨下骨质缺损区。5例为T1低信号,T2低信号灶。8例为T1低信号、T2高信号。2例为T1低信号、T2等信号。病灶周缘呈低信号环绕。关节软骨变薄、粗糙,部分中断、缺如。与关节镜检查结果一致。结论:OCD在MRI有特征性表现,MRI对其可作出明确诊断。
Objective:ToevaluateMRIinthediagnosisofosteochondritisdissecans.Methods:Fifteencaseswithosteochondritisdissecansprovedbyarthroscopyandsurgerywerereviewedandanalyzed.MRIfeatureswereevaluated.Results:Thefemoralcondylewasthemostcommonlyaffectedlocationintheknee,itoccurredinallthepatients.FivecaseshadlowsignalonT1WIandT2WI.EightcasesshowedlowsignalonT1WIorhighsignalonT2WI.TwocasesshowedlowsignalonT1WIandintermediatesignalonT2WI.The...
