摘要
背景:MRI检查可以早期确诊隐匿性骨折,低场强磁共振成像还具有专有线圈使图像更清晰的优点。目的:分析低场强MRI在膝关节隐匿性骨折诊断中的应用价值。方法:回顾性分析45例经手术、关节镜检查或临床证实的膝关节隐匿性骨折患者低场强MRI情况。结果与结论:45例病例在X射线平片正侧位上均未见异常,而低场强MRI检查均呈现T1WI呈低信号,T2WI呈高信号,在STIR上病灶与正常骨组织的对比度更高,显示出不同部位隐匿性骨折的病变部位、范围及形态,其中34例伴交叉韧带、副韧带及半月板撕裂。提示低场强MRI能敏感显示创伤性膝关节隐匿性骨折的病变特点及严重程度,诊断准确,同时能发现膝关节韧带、肌腱及软骨的损伤,为首选检查手段。
BACKGROUND：MRI examination can be applied to the early diagnosis of occult fracture.Except for the characteristics of conventional MRI,low-field MRI has other advantages,such as a proprietary coil to make image clearer.OBJECTIVE：To explore the value of low-field MRI for the diagnosis of occult traumatic fracture of the knee.METHODS：Forty-five patients with occult traumatic fracture of the knee confirmed by using surgery,arthroscopy or clinical examination were examined by MRI.RESULTS AND CONCLUSION：MR sequences included SE T1WI,GRE T2WI and STIR.The location,range,and morphology of fractures were analyzed.Thirty-four fractures in 45 cases were showed by MRI.Low-field MRI can sensitively display the characteristics and severity of occult traumatic fracture of the knee.Low-field MRI is accurate in diagnosis,and can find injuries of knee ligament,tendon,and cartilage.
出处
《中国组织工程研究与临床康复》
CAS
CSCD
北大核心
2011年第30期5591-5595,共5页
Journal of Clinical Rehabilitative Tissue Engineering Research
