A systematic review and meta-analysis of diagnostic test of MRA versus MRI for detection superior labrum anterior to posterior lesions type II-VII

Objective To determine the diagnostic performance of magnetic resonance arthrography (MRA) and magnetic resonance imaging (MRI) in superior labrum anterior to posterior lesions (type II-VII) of the shoulder. Material and methods PubMed and Scopus search engines, an electronic search of articles was performed from inception to February 19, 2016. Diagnostic performance of index tests was compared by the summary area under receiver operator characteristic curve (AUROC). Results and conclusions In all, 117 of 493 studies were eligible and 32 studies (2,013 shoulders) and 11 studies (1,498 shoulders) were evaluated with MRA and MRI. The summary sensitivity, specificity, likelihood ratio (positive and negative) and AUROC were 0.87 (95 % confidence interval, CI: 0.82, 0.91), 0.92 (95 % CI: 0.85, 0.95), 10.28 (95 % CI: 5.84, 18.08), 0.14 (95 % CI: 0.10, 0.20) and 0.94 (95 % CI: 0.92, 0.96) respectively for MRA, and 0.76 (95 % CI: 0.61, 0.86), 0.87 (95 % CI: 0.71, 0.95), 5.89 (95 % CI: 2.5, 13.86), 0.28 (95 % CI: 0.17, 0.47) and 0.94 (95 % CI: 0.92, 0.96) respectively for MRI. The diagnostic performance of MRA was superior to MRI by both direct and indirect comparisons for the detection of SLAP lesions.