摘要目的比较同一乳腺肿瘤病人的3.0 T与7.0 T双b值MR扩散加权成像(DWI)的差别。方法 28例病人[平均年龄(56±16)岁]被纳入研究,均获得伦理委员会批准。增强扫描前,应用分段读出平面回波成像[平面内分辨率:1.4 mm× Abstract Objective To compare the difference between 3.0 T and 7.0 T double b value MR diffusion weighted imaging (DWI) in the same breast tumor patients. Methods Twenty-eight patients [mean age (56 ± 16) years] were enrolled in the study and both were approved by ethics committee. Before enhancing the scan, segmentation echo plane echo imaging was applied [in-plane resolution: 1.4 mm ×