Department of Radiology, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, China (mainland).
Department of Ultrasound, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, China (mainland).
Med Sci Monit. 2022 Aug 1;28:e936703. doi: 10.12659/MSM.936703.
BACKGROUND The aim of this study was to identify the diagnostic magnetic resonance imaging (MRI) findings in 47 shoulders with subcoracoid impingement syndrome by comparison with 100 normal shoulders. MATERIAL AND METHODS The subcoracoid impingement syndrome group consisted of 47 shoulders with subcoracoid impingement syndrome and the normal group consisted of 100 normal shoulders. The MRI parameters - coracoids-humeral distance (CHD), coracoid index (CI), height of the lesser tuberosity (HLT), coracoid obliquity (CO), coracoglenoid angle (CGA), coracohumeral angle (CHA), width of the subscapular tendon (WST), and contact distance between subscapular tendon and coracoid process (CD) - were compared between the subcoracoid impingement syndrome group and the normal group. The areas under the curves (AUCs) from the receiver operating characteristic (ROC) for single MRI parameters were recorded, in which the MRI parameters with AUC exceeding 0.70 were included in the analysis of combined parameters. Comparisons of ROC were made among single parameters and combined parameters. RESULTS For diagnosing subcoracoid impingement syndrome by using single MRI parameters (CHD, CI, HLT, CGA, CHA, WST, and CD), the AUCs were 0.963, 0.806, 0.745, 0.691, 0.613, 0.685, and 0.614, respectively, of which CHD had the largest AUC. CHD, CI, and HLT (AUC exceeding 0.70) were included in the study of the combined parameters. The AUC of combined CHD and HLT showed a significantly larger AUC than that of CHD (0.986 vs 0.963, P=0.036), and showed no significant difference compared with that of combined CHD, CI, and HLT (0.986 vs 0.987, P=0.882). CONCLUSIONS Measurement of the coracoid-humeral distance and height of the lesser tuberosity were key MRI diagnostic findings for subcoracoid impingement syndrome.
本研究旨在通过与 100 例正常肩关节比较，确定 47 例喙突下撞击综合征患者的诊断性磁共振成像（MRI）表现。
喙突下撞击综合征组包括 47 例喙突下撞击综合征患者，正常组包括 100 例正常肩关节。比较喙突下撞击综合征组和正常组的 MRI 参数：喙突肱骨距离（CHD）、喙突指数（CI）、小结节高度（HLT）、喙突偏斜角（CO）、喙肱角（CGA）、喙突肩峰角（CHA）、肩胛下肌腱宽度（WST）和肩胛下肌腱与喙突接触距离（CD）。记录每个 MRI 参数的受试者工作特征曲线（ROC）下面积（AUC），AUC 大于 0.70 的 MRI 参数纳入联合参数分析。比较各 MRI 参数及联合参数的 ROC。
应用 CHD、CI、HLT、CGA、CHA、WST 和 CD 等单一 MRI 参数诊断喙突下撞击综合征的 AUC 分别为 0.963、0.806、0.745、0.691、0.613、0.685 和 0.614，其中 CHD 的 AUC 最大。CHD、CI 和 HLT（AUC 大于 0.70）纳入联合参数研究。联合 CHD 和 HLT 的 AUC 明显大于 CHD（0.986 比 0.963，P=0.036），与 CHD、CI 和 HLT 的联合 AUC（0.986 比 0.987，P=0.882）比较差异无统计学意义。
测量喙突肱骨距离和小结节高度是喙突下撞击综合征的关键 MRI 诊断发现。
