DTI评估髌股关节软骨轻度损伤:与关节镜对照  

DTI evaluation of mild articular cartilage injury in patellofemoral joint:Comparison with arthroscopy

作　　者：李敏[1] 邓德茂[1] 伏春华[2] 马立恒[3] 孙沛毅[1] 李莎莎[1] 廖海[1] 韦小梅[1] 段高雄[1] 罗芳[1] 陈文福[1] 

机构地区：[1]广西中医药大学第一附属医院放射科,广西南宁530023 [2]广西中医药大学第一附属医院骨科,广西南宁530023 [3]广东药学院附属第一医院影像医学科,广东广州510080

出　　处：《中国医学影像技术》2017年第7期1071-1075,共5页Chinese Journal of Medical Imaging Technology

基　　金：广西省自然科学基金(2014GXNSFAA118257)

摘　　要：目的探讨DTI评估髌股关节软骨轻度损伤的价值。方法回顾性分析82例常规MR诊断髌股关节软骨正常或轻度损伤患者的DTI及关节镜检查资料。根据关节镜检查结果,将其中40例Outerbridge分级Ⅰ、Ⅱ级者纳入髌股关节软骨轻度损伤组,33例无髌股关节软骨损伤者纳入对照组,排除9例Outerbridge分级为Ⅲ、Ⅳ级者。对比分析2组髌股关节软骨DTI表现,并与关节镜结果对照。结果髌股关节软骨轻度损伤组40例关节镜检查共发现62处软骨轻度损伤;其中通过ADC及伪彩图可显示49处(49/62,79.03%),FA伪彩图可显示51处(51/62,82.25%)。髌股关节软骨轻度损伤ADC及FA伪彩图表现为软骨色阶不均匀,内见红色或粉色色阶。与对照组正常软骨比较,髌股关节软骨轻度损伤组软骨损伤区ADC值明显增高,FA值明显降低(P均<0.05)。结论 DTI可显示及量化髌股关节软骨的轻度损伤,为早期软骨损伤的诊治提供有价值的参考信息。Objective To evaluate the value of DTI in mild articular cartilage injury in patellofemoral joint. Methods The DTI and arthroscopy data of 82 patients wih routine MRI diagnosed as mild articular cartilage injury were analyzed retrospectively. According to the results of arthroscopy, 40 cases of mild articular cartilage injury with Outerbridge classification Ⅰ or Ⅱ were divided into experimental group, and 33 cases with normal patellofemoral articular cartilage were divided into control group. There were 8 articular cartilage injury patients with Outerbridge classification Ⅲ or Ⅳ in patello-femoral join were excluded. The DTI data were analyzed compared with arthroscopy. Results Arthroscopy detected 62 lesions of cartilage injury in experimental group. Totally 49 lesions （49/62, 79.03%） were detected by ADC pseudocolor image and 51 lesions （51/62, 82.25%） were detected by FA pseudocolor image. The DTI pseudocolor images of articular cartilage injury showed uneven levels. The red or pink levels can been observed. Compared with the control group, ADC value increased and FA value decreased significantly in experimental group （both P〈0.05）. Conclusion DTI can clearly display and detect mild articular cartilage injury in patellofemoral joint, which provide valuable information for early cartilaginous injury.

关 键 词：扩散张量成像 髌股关节 软骨损伤 关节镜 

分 类 号：R684[医药卫生—骨科学] R445.2[医药卫生—外科学]