Loew M, Sabo D, Mau H, Perlick L, Wehrle M
Stiftung Orthopädische Universitätsklinik Heidelberg.
Z Orthop Ihre Grenzgeb. 1996 Jul-Aug;134(4):354-9. doi: 10.1055/s-2008-1039774.
An analysis of the MR-images of 75 patients with calcifying tendinitis of the shoulder was performed. The aim of the study was to recognize characteristic findings of the calcific deposits and their relation to the involved tendons as well as the coincidence with additional degenerative alterations of the rotator cuff. The calcifications can be demonstrated with high accuracy (> 95%) in T1-weighted images as areas of decreased signal intensity. It is possible to characterize the calcifications similar to Gärtner's radiologic classification differentiating form and density of the calcific deposits as well as their delimitation to the tendon structure. In T2-images there frequently is a perifocal band of increased signal intensity which can be identified as an oedema around the calcification. Analysing two perpendicular planes the calcifications can be assigned to the corresponding anatomical structure. 83 percent were located in the supraspinatus tendon above the humeral head or in the superior part of the subscapularis tendon. Degenerative areas of the rotator cuff are demonstrated as small zones of increased signal intensity, abnormal morphology or discontinuity of the tendon. Only in one patient a partial tear could be found; 11 percent showed variable signs of degenerative alteration of the involved tendon.
对75例肩部钙化性肌腱炎患者的磁共振图像进行了分析。本研究的目的是识别钙化沉积物的特征性表现及其与受累肌腱的关系，以及与肩袖其他退行性改变的相关性。钙化在T1加权图像中可作为信号强度降低的区域以高精度（>95%）显示出来。类似于加特纳的放射学分类，可以根据钙化沉积物的形态和密度及其与肌腱结构的界限来描述钙化特征。在T2图像中，钙化灶周围经常有一条信号强度增加的带，可被识别为钙化周围的水肿。通过分析两个相互垂直的平面，钙化可被归属于相应的解剖结构。83%的钙化位于肱骨头上方的冈上肌腱或肩胛下肌腱的上部。肩袖的退行性区域表现为信号强度增加的小区域、肌腱形态异常或连续性中断。仅在1例患者中发现了部分撕裂；11%的患者显示受累肌腱有不同程度的退行性改变迹象。
