Fig 4. ROC analysis of image texture metrics.

ROC curve analysis proved that Shannon entropy on T2WI was a reliable indicator for discrimination of homogenous and heterogeneous lesions identified by a neuro-radiologist (A). ROC curve analysis also proved that both Edge mean (B) and median (C) values were promising indicators for discrimination of lesions with vague and well defined borders and both Edge mean and median values performed in a comparable manner.