Accuracy of non-arthrographic 3T MR imaging in evaluation of intra-articular pathology of the hip in femoroacetabular impingement
Accuracy of non-arthrographic 3T MR imaging in evaluation of intra-articular pathology of the hip in femoroacetabular impingement
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DOI：
10.1007/s00256-016-2551-z
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发表时间：
2017-03-01
影响因子：
2.1
通讯作者：
White, Lawrence M.
中科院分区：
文献类型：
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作者：
Linda, Dorota D.;Naraghi, Ali;White, Lawrence M.
探讨非关节成像3-T MRI与髋关节镜在评估疑似FAI患者唇部和软骨病理方面的准确性。在IRB批准和放弃同意后，我们回顾了连续42例疑似FAI的非关节成像3-T MRI和髋关节关节镜检查。高分辨率TSE MR成像由两名肌肉骨骼放射科医生一致评估，对关节镜检查结果不知情，是否存在唇裂和关节软骨病变。髋臼软骨分为正常、退变/裂裂、分层或脱落。将MRI结果与关节镜检查结果进行比较。以关节镜为参考标准，计算MRI的敏感性、特异性、准确性和预测值。38例平均年龄29岁（13-45岁）的患者的42个髋关节被评估。MRI和关节镜检查之间的平均间隔为154天（范围27-472天）。MRI表现为41例唇裂（敏感性100%，特异性50%，准确性98%，PPV 98%, NPV 100%）， 11例股骨软骨异常（敏感性85%，特异性100%，准确性95%，PPV 100%, NPV 94%）， 36例髋臼软骨病变（敏感性94%，特异性67%，准确性90%，PPV 94%, NPV 67%）。36例髋臼软骨MRI病变中，退变/裂7例，脱层26例，脱落3例，其中10例关节软骨MRI分级与关节镜不一致。非关节成像的3-T磁共振成像是一种高度准确的评估临床疑似FAI患者唇和软骨的技术。
To investigate the accuracy of non-arthrographic 3-T MRI compared to hip arthroscopy in the assessment of labral and cartilaginous pathology in patients with suspected FAI.Following IRB approval and waived consent, 42 consecutive cases of suspected FAI with non-arthrographic 3-T MRI and arthroscopy of the hip were reviewed. High-resolution TSE MR imaging was evaluated in consensus by two musculoskeletal radiologists, blinded to arthroscopic findings, for the presence of labral tears and articular cartilage lesions. Acetabular cartilage was categorized as normal, degeneration/fissuring, delamination, or denudation. MRI findings were compared to arthroscopy. Sensitivity, specificity, accuracy, and predictive values for MRI were calculated using arthroscopy as the standard of reference.Forty-two hips in 38 patients with a mean age of 29 (range 13-45 years) were assessed. Mean interval between MRI and arthroscopy was 154 days (range 27-472 days). MRI depicted 41 cases with labral tears (sensitivity 100%, specificity 50%, accuracy 98%, PPV 98%, NPV 100%), 11 cases with femoral cartilage abnormalities (sensitivity 85%, specificity 100%, accuracy 95%, PPV 100%, NPV 94%), and 36 cases with acetabular cartilage lesions (sensitivity 94% specificity 67%, accuracy 90%, PPV 94%, NPV 67%). Of the 36 cases with acetabular cartilage lesions on MRI, 7 were characterized as degeneration/fissuring, 26 as delamination, and 3 as denudation, with discordant results between MRI and arthroscopy for grading of articular cartilage in ten cases.Non-arthrographic 3-T MR imaging is a highly accurate technique for evaluation of the labrum and cartilage in patients with clinically suspected FAI.