肩袖损伤诊断中肩关节造影和MRI的敏感性和特异性比较

Diagnostic value of arthrography and MRI in rotator cuff tears

目的 通过随访分析 ,比较肩关节造影和MRI诊断肩袖部分和完全撕裂的敏感性和特异性。 方法 对 5 3例怀疑有肩袖损伤 (包括部分撕裂和完全撕裂 )患者的术前关节造影和MRI检查结果与术中发现进行比较分析。 结果 肩关节造影、MRI诊断肩袖部分撕裂的敏感性分别为70 %和 80 % ,特异性均为 75 %。诊断肩袖完全撕裂的敏感性分别为 87%和 90 % ,特异性分别为 10 0 %和 75 %。 结论 关节造影与MRI诊断肩袖损伤的敏感性无明显差别 。

Objective To prospectively compare arthrography with MRI to determine the sensitivity and specificity in detecting rotator cuff tear. Methods 53 shoulders were studied. All patients underwent both arthrography and MRI. The results were compared with the findings of arthroscopy or open surgery. Results[ The sensitivity in demonstrating partial thickness tears was 70% for arthrography and 80% for MRI; the specificity was 75% for arthrography or MRI. The sensitivity in detecting full thickness tears was 87% for arthrography and 90% for MRI, and the specificity was 100% for arthrography and 75% for MRI. Conclusion The sensitivity of arthrography and MRI in detecting rotator cuff tears was identical. The specificity of arthrography in detecting full thickness tears was higher that of MRI.