Faculty of Health, Queen's Building, University of East Anglia, Norwich NR4 7TJ, United Kingdom.
Eur Radiol. 2011 Apr;21(4):863-74. doi: 10.1007/s00330-010-1956-7. Epub 2010 Sep 22.
Magnetic resonance imaging (MRI) and magnetic resonance arthrography (MRA) have been advocated for the diagnosis of acetabular labral tears. The purpose of this study was to determine the sensitivity and specificity of MRI and MRA in diagnosing acetabular labral tears using meta-analysis.
Pertinent published and unpublished literature databases were reviewed. A two-by-two table was constructed to calculate the sensitivity and specificity of MRI or MRA investigations against surgical outcomes. Pooled sensitivity and specificity and Receiver Operating Characteristic curve (ROC) evaluations were performed. Methodological quality of each study was assessed using the QUADAS (Quality Assessment of Diagnostic Accuracy Studies) tool.
Nineteen papers assessing 881 hips were reviewed. Conventional MRI was assessed in 13 studies and MRA was assessed in 16 studies. Whilst both MRI (0.5-3T) and MRA (0.5-3T) presented with a moderate sensitivity and specificity (sensitivity 66%, 87%; specificity 79%, 64%), diagnostic accuracy of MRA appeared to be superior to MRI in detecting acetabular labral tears on ROC curve interpretation. The literature poorly described population characteristics, assessor blinding, with limited sample sizes.
MRI and MRA may be useful adjuncts in the diagnosis of acetabular labral tears in adults. MRA appears to be superior to conventional MRI.
磁共振成像（MRI）和磁共振关节造影（MRA）已被用于诊断髋臼唇撕裂。本研究的目的是通过荟萃分析确定 MRI 和 MRA 在诊断髋臼唇撕裂中的敏感性和特异性。
回顾了相关的已发表和未发表的文献数据库。构建了一个 2x2 表，以计算 MRI 或 MRA 检查与手术结果的敏感性和特异性。进行了汇总敏感性和特异性以及接受者操作特征曲线（ROC）评估。使用 QUADAS（诊断准确性研究的质量评估）工具评估每个研究的方法学质量。
共回顾了 19 篇评估 881 髋的论文。13 项研究评估了常规 MRI，16 项研究评估了 MRA。虽然 MRI（0.5-3T）和 MRA（0.5-3T）均具有中等的敏感性和特异性（敏感性 66%，87%；特异性 79%，64%），但在 ROC 曲线解释中，MRA 检测髋臼唇撕裂的诊断准确性似乎优于 MRI。文献对人群特征、评估者盲法的描述较差，样本量有限。
MRI 和 MRA 可能是成人髋臼唇撕裂诊断的有用辅助手段。MRA 似乎优于常规 MRI。
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