目的 对比与分析乳腺纤维腺瘤的超声、磁共振成像影像表现及其诊断价值。方法 选取经我院收治的乳腺纤维腺瘤 患者80例，回顾性分析其超声、磁共振成像检查结果，对比两种检测方法误诊率、准确率及符合率。结果 磁共振 成像诊断误诊率(5.77%)、准确率(94.23%)明显优于超声诊断误诊率(15.25%)、准确率(84.75%)；在病理证实的108 个纤维腺瘤中，超声精确诊断出52个，符合率为48.15%；磁共振成像精确诊断出98个，符合率为90.74%，二者对比 差异有统计学意义(P＜0.05)。结论 与超声相比，磁共振成像诊断乳腺纤维腺瘤的误诊率低，准确性更高。

Objective To compare and analyze the ultrasonographic and MRI findings of breast fibroadenoma and their diagnostic value. Methods We selected 80 cases of breast fibroadenoma in our hospital, retrospectively analyzed the ultrasonic and magnetic resonance imaging results, and compared the two methods of misdiagnosis rate, accuracy and coincidence rate. Results MRI diagnosis of misdiagnosis rate (5.77%) and accuracy (94.23%) was significantly better than the ultrasonic diagnosis rate (15.25%) and accuracy (84.75%), in 108 fibroadenoma confirmed by pathology, ultrasound accurately diagnosed 52, the coincidence rate was 48.15%; magnetic resonance imaging accurately diagnosed 98, consistent with the rate was 90.74%, there was statistically significant difference (P<0.05) two. Conclusion Compared with ultrasound, the diagnostic accuracy of MRI in breast fibroadenoma is low and the accuracy is higher.