MRI在膝关节外伤性骨挫伤中的诊断价值  

Diagnosis value of MRI in traumatic bone contusion of the knee

作　　者：范璐[1] 程金宝[1] 乔辉[1] 刘振兴[1] 贺莉[1] 

机构地区：[1]天津市人民医院影像部,天津300121

出　　处：《中国骨质疏松杂志》2012年第7期644-646,共3页Chinese Journal of Osteoporosis

摘　　要：目的评价MRI在膝关节外伤性骨挫伤中的诊断价值。方法回顾性分析60例膝关节急性外伤,X线片显示阴性而MRI诊断骨挫伤患者的影像学表现。MRI检查时间为伤后1～7天,采用膝关节专用线圈,行FSE序列T1WI、T2WI、STIR的斜矢状位及脂肪抑制PDWI的冠状位扫描,层厚3.5mm,层间距0.5 mm。结果骨挫伤在T1Wl序列上呈低或稍低信号,在T2WI、PDWI及STIR序列上呈高信号。60例病例中合并附属结构损伤43例,合并关节腔和/或髌上囊积液53例。结论 MRI可以准确显示膝关节骨挫伤的部位和范围以及附属结构的损伤,对临床诊断和治疗具有重要意义。Objective To evaluate the value of MRI in diagnosis of bone contusion in knee injury. Methods Images of 60 bone contusion patients diagnosed with MRI but not with X-ray after acute knee injury were retrospectively analyzed. The MRI examination was performed among 1-7 days after the trauma. Using special coil for the knee, oblique sagittal plane scanning with fast spin-echo sequence （T1WI, T2WI, PDWI） and coronal scanning with fat suppressed sequence were performed. Results Bone contusion showed low or slightly low signal on T1WI series, but high signal on T2WI, PDWI, STIR series. The bone contusions were complicated with accessory structure injury in 43 cases, joint cavity and/or bursasuprapatellaris effusion in 53 cases, among 60 cases. Conclusion MRI can accurately show the site and the range of the bone contusion as well as the injuries of the accessory structures. It is significant for the clinical diagnosis and treatment.

关 键 词：膝关节 骨挫伤 磁共振成像 

分 类 号：R68[医药卫生—骨科学]