目的：评估肩关节撞击综合征与相关肩峰影像学特征之间的联系。方法：采用3.0T MR检查，选取56例肩关节临床异常患者作为观察组，50例无症状志愿者作为对照组，对肩关节MR影像学特征进行评估，所有研究对象均经临床症状及体格检查诊断。结果：两组研究对象肩关节MR影像学特征评估有显著差异（P<0.05）：患者肩峰Ⅲ型较对照组多（13∶2），肩峰下距离及肩峰前部覆盖在两组研究对象中均不同[观察组（6.3±1.3） mm，1.18；对照组（8.5±1.6） mm，1.37]，肩峰厚度两组亦不同[观察组（8.7±0.7） mm；对照组（7.1±0.8） mm]；肩锁关节异常好发于观察组。年龄、性别和肱骨头外侧覆盖两组间差异无统计学意义。此外，肩锁关节退变及肩峰的形状与年龄有关。结论：肩峰—肱骨间容积减小及肩峰弓不稳定均易导致肩袖损伤的发生。

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