Fig. 6. A. ROC curves showing diagnostic performance of MDpost, ADCpost, and MKpost in assessing good response to neoadjuvant chemotherapy. MDpost resulted in highest AUC of 0.91 (95% CI: 0.753, 0.986. p < 0.001), and MDpost had higher diagnostic performance than ADCpost (p = 0.037) and MKpost (p = 0.011). B. ROC curves showing diagnostic performance of ΔMD, ΔADC, and ΔMK. ΔMD presented highest AUC (0.92, 95% CI: 0.759, 0.988, p < 0.001), with optimal cutoff value at 13.5% (sensitivity, 100%; specificity, 70.6%), and ΔMD showed higher diagnostic performance than ΔADC (p = 0.033) and ΔMK (p = 0.037). AUC = area under curve, CI = confidence interval, ROC = receiver operating characteristic.
