目的探讨乳腺癌术前应用MRI 动态增强成像联合扩散加权成像的诊断 价值。方法 选择2014年6月-2016年9月于 我院收治且经病理确诊为乳腺癌98例患者 临床资料，均行超声、DCE-MRI扫描、DWI 扫描，观察检查结果，比较各检查技术的 诊断符合率。结果 经手术病理证实，98 例患者中41例为浸润导管癌、16例为浸润 小叶癌、9例为导管内癌、32例为导管原 位癌。DCE-MRI+DWI诊断符合率92.86%比 超声64.29%、MRI常规扫描72.45%、DCEMRI 81.63%高(P＜0.05)，与DWI诊断符合 率86.73%无统计差异(P＞0.05)。结论 乳 腺癌术前行MRI动态增强成像、扩散加权 成像联合诊断的价值高，可提高诊断符合 率，对手术治疗具指导意义。

Objective To observe the value of MRI dynamic enhanced imaging and diffusion weighted imaging in the preoperative diagnosis of breast cancer. Methods The clinical data of 98 patients with pathologically confirmed breast cancer admitted to our hospital between June 2014 and September 2016 were selected. All the patients were examined by ultrasonography, DCE-MRI scan, DWI scan, and the results were observed to compare the diagnostic coincidence rate of each inspection technique. Results Confirmed by surgery and pathology, in 98 cases of patients, 41 cases of invasive ductal carcinoma, 16 cases of invasive lobular carcinoma, 9 cases of intraductal carcinoma and 32 cases of ductal carcinoma in situ. DCE-MRI + DWI diagnostic coincidence rate was 92.86%, which was higher than 64.29% of ultrasonography, 72.45% of MRI routine scan and 81.63% of DCE-MRI (P＜0.05), and had no statistical difference with the diagnostic coincidence rate of DWI 86.73% (P＞0.05). Conclusion The value of MRI dynamic enhanced imaging and diffusion weighted imaging in the preoperative diagnosis of breast cancer is high, which can improve the diagnostic coincidence rate, and has guiding significance for surgical treatment.