Fig. 4From: Better efficacy in differentiating WHO grade II from III oligodendrogliomas with machine-learning than radiologist’s reading from conventional T1 contrast-enhanced and fluid attenuated inversion recovery imagesThe radiomic heat map about the correlation analysis for feature selection: (a) T1 CE; (b) FLAIR; (c) T1 CE + FLAIR. Note: Red refers to positive correlations and blue refers to negative correlations. Different color depth indicates different values of correlation coefficientsBack to article page