摘要
[目的]研究MRI在膝关节前交叉韧带(ACL)损伤中的诊断价值,分析MRI失误的原因,探寻提高诊断准确率的方法。[方法]选取符合病例入选标准的127例膝关节前交叉韧带损伤病例,行临床检查、MRI及关节镜检查。以关节镜检查为标准,分析MRI诊断ACL损伤的灵敏度、特异度、准确度、阳性预测值、阴性预测值、Youden指数及Kappa值。[结果]关节镜证实89例患者ACL撕裂,38例正常,ACL撕裂患者中部分撕裂7例,完全撕裂82例。MRI诊断ACL撕裂的灵敏度96.6%,特异度86.8%,准确度93.7%,阳性预测值94.5%,阴性预测值91.7%,Youden指数83.4%,Kappa值0.85。[结论]MRI诊断ACL损伤具有较高的准确度,MRI是诊断ACL撕裂的理想检查方法。
[Objective]To investigate the value of magnetic resonance imaging（MRI） in diagnosis of injury of the anterior cruciate ligament（ACL） of the knee and look for methods to further improve diagnosis accuracy.[Method]Totally 127 patients highly suspected of internal derangement of the knee received clinical diagnosis,MRI and arthroscopy examinations.With the results of arthroscopy as golden standard,the sensitivity,specificity,accuracy,positive and negative predictive values,Youden value and Kappa agreement of MRI diagnosis of ACL injury were calculated.[Result]Eighty-nine patients with ACL tears and 38 patients with normal ACL were found by arthroscopy.There were 7 partial tears and 82 complete tears.The sensitivity,specificity,accuracy,positive and negative predictive values,Youden value and Kappa agreement of MRI diagnosis of ACL tears were 96.6%,86.8%,93.7%,94.5%,91.7%,83.4%,and 0.85,respectively.[Conclusion]MRI has relatively high accuracy for diagnosis of ACL tears.MRI is an effective tool in the detection of ACL tears.
出处
《中国矫形外科杂志》
CAS
CSCD
北大核心
2011年第8期637-639,共3页
Orthopedic Journal of China
关键词
膝关节
前交叉韧带
损伤
MRI
诊断
knee joint
anterior cruciate ligament
injury
magnetic resonance imaging
diagnosis
