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Comparison of area under the curve (AUC) for multivariate models to detect increased Resistive Index (panel (A)) and Pulsatile Index (panel (B)). Baseline models AUCs for CRF are presented as dashed lines, AUCs for degenerative aortic stenosis are presented as solid lines. Abbreviations: AUC—area under the curve; PI—Pulsatile Index; RI—Resistive Index.
