Fig. 2

DCE-MR images of a patient who suffered from breast carcinoma and received the chemotherapy started with taxanes, DWI and ADC images in pCR group. Red color represent high ADC value, green color represent mediate ADC value, and blue color represent low ADC value. a, d DCE-MR images at baseline and postT1, There was an irregular mass in the left breast and confirmed to be breast carcinoma with Luminal A subtype. After one cycle of NAC, the tumor didnʼt have no significant decrease in diameter. b, e DW images at baseline and postT1, The images showed how the whole volume of interest (VOI) was placed within the tumor area manually. c, f ADC maps at baseline and postT1, ADC values were 0.8162 × 10^− 3 mm²/s at baseline and 1.4756 × 10^− 3 mm²/s at postT1, ADC value varied significantly as early as postT1