Objective:To investigate the conventional MR and MR arthrography in diagnosis of rotator cuff tear.Methods:26 patients with shoulder joint injury were performed routine MR and MR arthrography examination.Shoulder arthroscopy was the gold standard,compared the sensitivity and specificity of two methods of inspection.Results:The sensitivity of the conventional MR in the diagnosis of rotator cuff tear was 70.8%(17/24),the specificity was 100%(2/2),and accuracy was 65.4%(17/26);The results of MR arthrography wa...