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ROC curves of the DECT quantitative parameters, including NIC, λHu, nZeff, and attenuation in the differentiation of benign from malignant lesions of the breast. A, ROC curves of DECT quantitative parameters in arterial phase and B, ROC curves of DECT quantitative parameters in venous phase. NIC, normalized iodine concentration; nZeff, normalized effective atomic number; λHu, slope of the spectral Hounsfield unit curve; HU, Hounsfield unit; ROC, receiver operating characteristic.
