目的探讨MRI对小乳腺癌的临床 诊断价值。方法 以我院放射科收治的经 手术病理证实的69例小乳腺癌患者为研究 对象，根据其临床资料进行回顾性分析 和总结。分别对其进行钼靶检查和MRI检 查，以病理检查结果为金标准，对比分析 两种诊断方式的诊断结果。结果 MRI检 测小乳腺癌的准确性为86.9%，明显高于 钼靶73.9%(p＜0.05)；MRI检测病灶形态 学特征的敏感性为91.3%，明显高于钼靶 78.3%(p＜0.05)。结论 MRI在小乳腺癌诊 断中具有较高准确性，在探测病灶形态方 面敏感性更高，明显优于钼靶检查，对提 升小乳腺癌的确诊率具有重要的意义。

Objective To investigate clinical diagnosis value of MRI on small breast cancer. Methods Sixty nine patients with small breast canceradmitted by in the Radiology Department of the Hospital who were confirmed via surgical pathology were selected as research subjects, and retrospective analysis and summary were made according to clinical data.The mammography and MRI examinations were respectively conducted, pathological examination results were treated as gold standard, and two types of diagnosis ways were compared and analyzed. Results The accuracy of MRI detection on small breast cancer was 86.9%, being significantly higher than that of molybdenum target at 73.9% (p<0.05). The sensitivity of MRI to detect morphological features of lesions was 91.3%, being significantly higher than the molybdenum target at 78.3% (p<0.05). Conclusion MRI poses high accuracy in the diagnosis of small breast cancer, and its sensitivity in detecting lesions is better than mammography examination, delivering vital significance in improve the positive rate of small breast cancer .