目的通过对乳腺癌的乳腺X线 摄影与MRI的对比研究，探讨两者对乳腺 癌的单独、联合诊断价值,以提高乳腺 癌的诊断准确率。方法 收集广州市花都 区人民医院经手术或穿刺病理证实的47 例乳腺癌患者，回顾性分析其乳腺X线及 MRI影像学表现及其诊断价值。结果 乳 腺X线摄影诊断准确率83%(39/47),MRI 诊断准确率为91% (43/47)；两种影像 检查联合的诊断准确率为98% (46/47), 明显优于单一乳腺X线摄影或MRI检查 (P<0.05)。结论 MRI诊断乳腺癌的敏感 性较乳腺X线摄影高；两者结合能显著提 高乳腺癌的检出率和诊断准确率，对乳 腺癌的筛查和临床诊治有重要意义。

Objective To comparative study the diagnostic value of mammography and MRI to breast cancer; to improve the diagnostic accuracy of breast cancer. Methods 47 case with breast cancer confirmed by surgery and pathology were collected, and the preoperative image data of mammography and MRI were retrospectively analyzed. Results The diagnostic accuracy of breast cancer by mammography was 83%(39/47); The diagnostic accuracy of breast cancer by MRI was 91% (43/47); the diagnostic accuracy of breast cancer combined mammography with MRI was 98% (46/47) which was statistically higher than single mammography or MRI (P<0.05). Conclusions The diagnostic accuracy of breast cancer by MRI were higher than mammography. Combined mammography with MRI can significantly improve the diagnosis accuracy of breast cancer and have great significance in the screening and treatment of breast cancer．