Neumann C H, Petersen S A, Jahnke A H, Steinbach L S, Morgan F W, Helms C, Genant H K, Farley T E
San Francisco Magnetic Resonance Center, California.
Rofo. 1991 Jun;154(6):593-600. doi: 10.1055/s-2008-1033193.
Thirty-two patients with clinical suspicion of shoulder instability were the subject of this assessment of MRI (1.5 T G. E. Signa) and its comparison with CT-arthrography (GE8800 and GE9800) of the shoulder. Twenty-seven patients had a final diagnosis established by arthroscopy and five by arthrotomy. The imaging examinations were interpreted independently by three radiologists blinded against history, surgical diagnosis and results of the compared test. The statistical analysis included ROC-curves, sensitivity, specificity and accuracy as well as predictive values. The significance of the comparative results was assessed by the McNemar Sign test. MRI showed significantly better diagnostic results in the evaluation of labral structures (sensitivity 85%, specificity 90%, accuracy 88%) and humeral head impression fractures (75, 82, 78 %). None of the tests were of sufficient diagnostic value to identify capsular abnormalities. CT and MRI results regarding the biceps tendon and loose bodies were similar, however, statistically not significant. MRI proved to be of high diagnostic value in the assessment of the unstable shoulder and compared favorably with CT-A.
32例临床怀疑存在肩关节不稳的患者接受了本次MRI（1.5T通用电气Signa）评估，并与肩关节CT关节造影（通用电气8800和通用电气9800）进行了比较。27例患者通过关节镜检查确立最终诊断，5例通过关节切开术确诊。3名放射科医生在不了解病史、手术诊断和对比检查结果的情况下对影像学检查进行独立解读。统计分析包括ROC曲线、敏感性、特异性、准确性以及预测值。通过McNemar符号检验评估对比结果的显著性。MRI在评估盂唇结构（敏感性85%，特异性90%，准确性88%）和肱骨头压痕骨折（75%、82%、78%）方面显示出显著更好的诊断结果。没有一项检查对识别关节囊异常具有足够的诊断价值。CT和MRI关于肱二头肌腱和游离体的结果相似，但在统计学上无显著差异。MRI在评估不稳定肩关节方面被证明具有很高的诊断价值，与CT关节造影相比具有优势。
