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The flow chart of the present study. (I) Brain axial contrast-enhanced T1WI (CET1) T2-weighted imaging (T2WI) and MR images acquisition; Regions of interest (ROI) segmentation by ITK-SNAP software. (II) Four categories radiomics features extracted by PyRadiomics algorithm. (III) Radiomics Feature selection by elastic net and RFE algorithm, and model training and testing.
