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Receiver operating characteristic comparison analysis. The final model IPH discriminatory value is excellent (blue, AUC = 0.932). The final model discriminatory value (blue) is significantly higher than a model with maximum plaque thickness only (yellow, AUC = 0.881, P < .001), a model with millimeter stenosis only (red, AUC = 0.830, P < .001), and a model with ulceration only (green, AUC = 0.715, P < .001).
