目的：观察女性多囊卵巢综合征（PCOS）患者MRI检查中卵巢形态学改变，探讨MRI在评估PCOS中的价值。方法：选择临床确诊为PCOS者24例（PCOS组），同时选择月经正常且无雄激素分泌过多史的健康女性30例作对照组，研究对象均为绝经前女性。MRI图像上观察两组卵巢体积大小和卵泡数目，比较两组MRI中卵巢形态学改变。结果：PCOS组与对照组卵巢卵泡数目均值分别为（11.5±1.7）个和（6.4±1.5）个，卵巢体积分别（10.6±0.8）cm³和（6.1±1.2）cm³；PCOS组卵泡数目多于对照组，卵巢体积大于对照组，差异均有统计学意义（P<0.05）。结论：MRI对评估多囊卵巢综合征的卵巢形态具有重要的参考价值。

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