常规MRI与MR关节造影诊断肩袖撕裂的初步对比研究

3.0 T MR Imaging of Rotator Cuff Tears:A Comparative Study of Routine MRI and MR Arthrography

目的比较3.0 T常规MRI和MR关节造影检查对肩袖撕裂的诊断价值。方法分析48例肩关节病变患者的常规MRI和MR关节造影检查资料,确定肩袖有无撕裂并进行分型。其中4例行肩关节镜检查。采用配对χ~2检验比较两种检查方法诊断肩袖撕裂的差异性。结果常规MRI显示冈上肌腱全层撕裂6例,冈上肌腱部分撕裂9例;MR关节造影显示冈上肌腱全层撕裂7例,冈上肌腱部分撕裂8例。常规MRI和MR关节造影检查方法对肩袖全层撕裂诊断有6例相同,1例常规MRI诊断无撕裂MR关节造影诊断为撕裂;对肩袖部分撕裂的诊断有7例相同,3例不同,其中2例常规MRI诊断为撕裂而MR关节造影诊断为无撕裂,1例常规MRI诊断为无撕裂而MR关节造影诊断为撕裂;两种检查方法对肩袖全层撕裂(χ~2=0.000,P>0.05)及部分撕裂(χ~2=0.000,P>0.05)的诊断差异无统计学意义。结论初步显示3.0 T常规MRI对肩袖全层撕裂和肩袖部分撕裂的诊断能达到MR关节造影的诊断效果,同时可以显示肩袖撕裂伴发的各种异常。

Objective To compare the diagnostic value of routine MR imaging with MR arthrography for rotator cuff tears. Methods 48 patients suspected of the rotator cuff tears,shoulder instability and shoulder impingement syndromes were examined with routine MR imaging and MR arthrography at the same time. All data were studied. 4 patients underwent subsequent shoulder arthroscopy. Chi-square test was used to compare the difference between MR imaging and MR arthrography for rotator cuff tears. Results 6 full thickness rotator cuff tears and 9 partial thickness rotator cuff tears were revealed at routine MR imaging,7 full thickness rotator cuff tears and 8 partial thickness rotator cuff tears were revealed at routine MR arthrography. 6 full thickness rotator cuff tears had the same results and 1 different result at routine MR imaging and MR arthrography. 7 partial thickness rotator cuff tears had the same results and 3 different results at routine MR imaging and MR arthrography. There were no statistical difference between MR imaging and MR arthrography for diagnosing the full thickness rotator cuff tears( χ2= 0. 000,P > 0. 05) and partial thickness rotator cuff tears( χ2= 0. 000,P > 0. 05). Conclusion Routine MR imaging of shoulder at 3. 0 T MR shows similar diagnostic value with MR arthrography in evaluating patients with full thickness rotator cuff tears and partial thickness rotator cuff tears.