Fig. 7
a ROCs for the three noninvasive models generated with the leave-one-out cross-validation, which is based on the combination of Emean_ratio1 and s1 for the first visit, the combination of Emean2 and s2 for the second visit, the combination of Emax_ratio3 and fmass3 for the third visit. b ROCs for the three mixed models which were generated with the Ki-67 index added to the noninvasive models for ER-positive tumors. c Comparisons of the AUCs for the ROCs for NACT response prediction with the MRI volume from reference [23], the MRI volume in this study, the noninvasive models, and the mixed models. The 1st visit for the MRI volume measurement in [23] was after the first cycle of NACT treatment. ROC, receiver operating characteristic; SWE, shear wave elastography; PR, progesterone receptor; NACT, neoadjuvant chemotherapy; AUC, area under the curve; MRI, magnetic resonance imaging; IHC, immunohistochemical