Fig. 3

Aāā¼āF represents patients in the non-significant neoadjuvant chemotherapy (NAC) group, with tumor lesions in the upper outer quadrant of the breast. Pathological results indicate invasive ductal carcinoma with heterogeneous enhancement. Regions of interest (ROI) were delineated globally on the DKI raw images (A), then copied onto the color maps of MD (B), MK (C), D* value (D), D value (E), and f value (F), with global histogram parameters calculated. Gāā¼āL represents patients in the significant neoadjuvant chemotherapy (NAC) group, with tumor lesions in the right upper outer quadrant of the breast. Pathological results indicate invasive ductal carcinoma with heterogeneous enhancement. Regions of interest (ROI) were delineated globally on the DKI raw images (G), then copied onto the color maps of MD (H), MK (I), D* value (J), D value (K), and f value (L), with global histogram parameters calculated