肩袖撞击的磁共振成像评估：与确诊的全层肩袖撕裂的相关性
MR evaluation of rotator cuff impingement: correlation with confirmed full-thickness rotator cuff tears.
作者信息
Kaneko K, DeMouy E H, Brunet M E
机构信息
Department of Radiology, Tulane University Medical Center, New Orleans, LA 70112-2699.
出版信息
J Comput Assist Tomogr. 1994 Mar-Apr;18(2):225-8. doi: 10.1097/00004728-199403000-00010.
OBJECTIVE
To clarify the efficacy of MRI for the evaluation of rotator cuff impingement beneath the coracoacromial arch, MRI findings were correlated with confirmed full-thickness rotator cuff tears (FTRCTs).
MATERIALS AND METHODS
Thirty-four shoulders with FTRCT and 49 control shoulders without FTRCT were selected for this study. Direct measurement of the subacromial space (SAS) and MRI grading of SAS and subacromioclavicular space (SACS) were correlated with FTRCT. In addition, the MRI impingement score (sum of SAS grade and SACS grade) was correlated with age and FTRCT.
RESULTS
Direct measurement of the SAS showed poor correlation with FTRCT. The SAS grade showed significant correlation with FTRCT; however, SACS grade showed poor correlation. Shoulders with higher MRI impingement scores were associated with FTRCT in patients over 40 years of age.
CONCLUSION
The MRI sign of rotator cuff impingement is fairly reliable and helpful in discriminating patients with FTRCT, especially older patients.
目的
为阐明磁共振成像（MRI）在评估喙肩弓下方肩袖撞击方面的效能，将MRI表现与确诊的全层肩袖撕裂（FTRCT）进行关联分析。
材料与方法
本研究选取了34例患有FTRCT的肩部病例以及49例无FTRCT的对照肩部病例。肩峰下间隙（SAS）的直接测量值以及SAS和肩峰锁骨间隙（SACS）的MRI分级与FTRCT进行关联分析。此外，MRI撞击评分（SAS分级与SACS分级之和）与年龄及FTRCT进行关联分析。
结果
SAS的直接测量值与FTRCT的相关性较差。SAS分级与FTRCT具有显著相关性；然而，SACS分级的相关性较差。MRI撞击评分较高的肩部病例与40岁以上患者的FTRCT相关。
结论
肩袖撞击的MRI征象相当可靠，有助于鉴别FTRCT患者，尤其是老年患者。
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