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目的:对比两种乳腺组织标记物的磁共振(MRI)表现，探讨不同乳腺组织标记物对MRI评价的影响和临床意义。方法:回顾性分析2015年11月至2018年8月本院69例患者(共78个肿物)放置两种乳腺组织标记物的乳腺MRI。在横断位脂肪抑制T2WI、T1WI平扫及T1WI增强图像上评估乳腺组织标记物影的大小和形状。结果:圈状无镍不锈钢合金标记物影的长径大于带状钛金属标记物的长径，在脂肪抑制T2WI序列中有统计学意义(n P＝0.039)。在T1WI增强图像中，所有圈状无镍不锈钢合金标记物影均>6 mm，带状钛金属标记物影20例>6 mm，8例≤6 mm；前者均为圆形，后者为圆形、点状和条状的分别有20例、7例、1例，两种乳腺组织标记物的大小及形状分类差异均具有统计学意义(n P6 mm diameter and round shape, and ribbon titanium markers showed >6 mm diameter ( n n=20) or ≤6 mm diameter (n n=8), and round (n n=20), dot (n n=7) or band (n n=1) shapes. The categories of sizes and shapes in two types of breast tissue markers both had statistical significance (n P<0.001,n P<0.001).n Conclusions:Small breast lesions with breast tissue markers are not suitable for MRI evaluation. The artifact of ribbon titanium markers is smaller than coil nickel-free stainless steel markers, so they have less impact for lesions. The choice of the breast tissue markers and image evaluation methods should depend on the different clinical conditions.