目的探讨3.0T MRI动态增强曲 线半定量分型法对乳腺病变的诊断价值。 方法 统计分析2012年11月至2014年10月 我院收治的女性乳腺疾病患者90例(101个 病灶)的临床资料。结果 临界值为每秒平 均流出斜率的0.03%的动态增强曲线半定 量分型对乳腺良恶性病变的诊断水平显著 高于0.06%/s、5%、10%(P<0.05)；临界值 为每秒平均流出斜率的0.03%的动态增强 曲线联合ER对乳腺良恶性病变的诊断水平 显著高于0.06%/s、5%、10%(P<0.05)。结 论 3.0T MRI动态增强曲线半定量分型法 的对乳腺良恶性病变具有较高的诊断价 值，临界值为每秒平均流出斜率的0.03% 时对曲线类型进行划分具有显著的优越 性，值得在临床推广使用。

Objective To evaluate the diagnostic value of 3.0T MRI dynamic enhancement curves semi-quantitative genotyping method in the diagnosis of breast lesions. Methods The clinical data of 90 cases (101 lesions) of female breast disease patients in our hospital from Novermber 2012 to October 2014 were statistically analyzed. Results The level of dynamic contrast-enhanced 0.03% critical value per average slope of the curve out of the semi-quantitative classification of benign and malignant breast lesions was significantly higher than 0.06%/s, 5%, 10% (P<0.05); the critical value 0.03% per average outflow curve slope dynamic enhanced joint ER breast diagnosis of benign and malignant lesions was significantly higher than 0.06%/s, 5%, 10% (P<0.05). Conclusion 3.0T MRI dynamic enhancement curves semi-quantitative genotyping method in the diagnosis of breast lesions has high diagnostic value, the critical value per average outflow of 0.03% slope curve type divide has incomparable superiority, so is worthy of promotion using in the clinical.