Indirect MR Arthrographic Findings of Adhesive Capsulitis
Indirect MR Arthrographic Findings of Adhesive Capsulitis
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DOI：
10.2214/ajr.10.6099
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发表时间：
2011-12-01
影响因子：
5
通讯作者：
Choi, Sang-Hee
中科院分区：
文献类型：
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作者：
Song, Kyoung Doo;Kwon, Jong Won;Choi, Sang-Hee
客观的。我们研究的目的是比较粘连性关节囊炎患者和非粘连性关节囊炎患者的间接 MR 关节造影结果。材料和方法。将临床诊断为粘连性关节囊炎的 35 名患者（21 名女性，14 名男性；平均年龄，50.1 岁）的间接 MR 关节照片与 45 名无粘连性关节囊炎的患者（23 名女性，22 名男性；平均年龄，48.9 岁）的间接 MR 关节照片进行比较。由两名放射科医生独立评估冠状T2加权图像以及冠状和矢状脂肪抑制增强T1加权图像，分别评估腋窝关节囊厚度以及腋窝增强部分和旋转间隔的厚度。使用组内相关系数（ICC）研究可靠性。比较受试者工作特征（ROC）曲线。结果。关节囊粘连炎患者的腋窝关节囊明显增厚，腋窝和肩肌间有增厚的强化部分。粘连性关节囊炎组和对照组之间，腋窝隐窝内增强部分的厚度和旋转肌间隔的增强部分的厚度差异显着大于腋窝隐窝内关节囊厚度的差异（p＜0.001）。所有三个指标的观察者间可靠性均良好（ICC >= 0.80）。腋窝关节囊厚度、腋窝增强部厚度和旋转肌间隔的ROC曲线下面积分别为0.797、0.861、0.847。结论。间接 MR 关节造影显示，旋转间隙内大量增强组织以及腋窝隐窝增厚和增强是提示粘连性关节囊炎的迹象。
OBJECTIVE. The objective of our study was to compare the indirect MR arthrographic findings of patients with adhesive capsulitis and patients without adhesive capsulitis.MATERIALS AND METHODS. Indirect MR arthrograms of 35 patients (21 women, 14 men; mean age, 50.1 years) diagnosed with adhesive capsulitis clinically were compared with indirect MR arthrograms of 45 patients (23 women, 22 men; mean age, 48.9 years) without adhesive capsulitis. Joint capsule thickness in the axillary recess and the thicknesses of the enhancing portion of the axillary recess and the rotator interval were, respectively, evaluated on coronal T2-weighted images and coronal and sagittal fat-suppressed enhanced T1-weighted images by two radiologists independently. Reliability was studied using the intraclass correlation coefficient (ICC). Receiver operating characteristic (ROC) curves were compared.RESULTS. Patients with adhesive capsulitis had significantly thickened joint capsules in the axillary recess and a thickened enhancing portion in the axillary recess and in the rotator interval. The difference in the thicknesses of the enhancing portion in the axillary recess and in the rotator interval were significantly greater than the difference in joint capsule thicknesses in the axillary recess between the adhesive capsulitis group and the control group (p < 0.001). Interobserver reliability was good for all three indexes (ICC >= 0.80). The area under the ROC curve for the thickness of the joint capsule in the axillary recess and the thicknesses of the enhancing portion of the axillary recess and the rotator interval were 0.797, 0.861, and 0.847, respectively.CONCLUSION. An abundance of enhancing tissue in the rotator interval and thickening and enhancement of the axillary recess are signs suggestive of adhesive capsulitis on indirect MR arthrography.