Fig. 1
Breast tumor color Ktrans (left panels) and τi (right panels) parametric maps from a patient with recurrence (48 years old, grade 3 invasive ductal carcinoma, ER-, PR+, HER2-, RCB = III) following NACT and a patient without recurrence (39 years old, grade 2 invasive ductal carcinoma, ER+, PR+, HER2+, RCB = 0 (pathologic complete response)). The color maps are overlaid onto the post-contrast DCE-MRI image slices that were through the centers of the two tumors, respectively. The maps in the top row were obtained from the DCE-MRI data collected pre-NACT (at V1), while those in the bottom row were obtained post-NACT (at V4). The color scales of Ktrans and τi are kept the same, respectively, for both patients and both MRI visits for comparison purposes. This figure is intended to show voxel-based quantitative DCE-MRI parameter values pre- and post-NACT. The images displayed for the two patients are cropped and zoomed at different scales, and therefore, should not be used to compare tumor size between the patients