前交叉韧带；_撕裂；_磁共振成像____

膝关节前交叉韧带撕裂的MRI诊断及分析

http://www.100md.com 《新疆医科大学学报》 2006年第6期

前交叉韧带；,撕裂；,磁共振成像,,前交叉韧带；,撕裂；,磁共振成像,摘要,关键词,1资料与方法,2结果,3讨论,参考文献

     摘要: 目的：研究膝关节前交叉韧带(ACL)撕裂的MRI诊断价值及提高诊断准确率的方法。方法：对44例膝关节损伤患者进行前瞻性研究，以关节镜检查作为金标准，分析ACL撕裂的MRI表现及诊断准确性。结果：MRI诊断ACL撕裂的敏感度为95.7%,特异度为85.7% ，阳性预测值为88.5%，阴性预测值为94.7%。ACL撕裂组后交叉韧带(PCL)角为(100±5.9)°，明显小于正常组PCL角(120±8.9)° (P<0.05)；ACL撕裂组PCL指数为2.64±0.27，明显小于正常组的3.12±0.31 (P<0.05)。结论：MR1是诊断ACL撕裂的理想检查方法，慢性损伤或ACL部分撕裂时，其诊断准确性降低。PCL角和PCL指数在诊断ACL撕裂时，其值越小，ACL损伤的可能性越大。

     关键词：前交叉韧带；撕裂；磁共振成像

    MRI diagnosis of tears of knee anterior cruciate ligamentKONG Dewei, JIA Wenxiao, ZHANG Keyuan, et al

    (Department of Imaging Center, First Affiliated Hospital， Xinjiang Medical University,Urumqi 830054， China)

    Abstract： Objective： To investigate the value of MR imaging in diagnosis of tears of the anterior cruciate ligament(ACL) of the knee and look for methods to further improve diagnositic accuracy. Methods：Fortyfour patients who had been highly suspected internal derangement of the knee was performed both MRI and arthroscopy examination. The MR images were prospectively interpreted and analyzed for accuracy of MR diagnosis of ACL tears. Result： The sensitivity ......

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