摘要
目的评价低场MRI分级对诊断膝关节软骨损伤的价值。方法回顾性分析60例（60膝，360处关节面）经关节镜证实的膝关节软骨损伤患者的MRI资料，以关节镜结果为金标准，评价低场MRI分级诊断软骨损伤的价值。结果低场MRI对膝关节软骨损伤的总敏感度、特异度和准确率分别为78．50％（157／200）、91．25％（146／160）和84．17％（303／360）；诊断2～4级膝关节软骨损伤与关节镜无差异，对1级诊断有所差异。结论低场MRI对分级诊断膝关节2～4级软骨损伤的价值较高，而对1级损伤价值有限。
Objective To observe the value of low-field MRI in grading diagnosis of articular cartilage injury of knee. Methods Low-field MRI data of 60 patients （60 knees, totally 360 cartilage surfaces） with cartilage injury confirmed by arthroscopic were retrospectively reviewed. Taking the results of arthroscopy as standards, the value of low-field MRI in grading diagnosis of articular cartilage injury was evaluated. Results The sensitivity, specificity and accuracy rate of low- field MRI for articular cartilage injury of knee was 78.50% （157/200）, 91.25% （146/160） and 84.17% （303/360）, respectively. Low-field MRI results had good consistency with those of arthroscopy for 2-4 grade, but not for grade 1 artic- ular cartilage injury. Conclusion Low-field MRI is valuable in grading diagnosis of grade 2--4 articular cartilage injury of knee, but not good for grade 1 injury.
出处
《中国介入影像与治疗学》
CSCD
2014年第3期161-164,共4页
Chinese Journal of Interventional Imaging and Therapy
关键词
软骨
关节
膝损伤
磁共振成像
Cartilage, articular
Knee injuries
Magnetic resonance imaging
