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Receiver operating characteristic curves for the radiomics-based classification models for low- and high-grade gliomas. The red and blue solid lines represent the curves of the ASL-nCBF and DSC-nrCBF models, respectively. ASL-nCBF, arterial spin labeling normalized cerebral blood flow; DSC-nrCBF, dynamic susceptibility contrast normalized relative cerebral blood flow; AUC, area under the curve.
