Table 2 Absolute Cohen’s d values for each MRI parameter comparing benign voxels versus low grade tumour, high grade tumour and all tumour voxels. MRI parameters ordered by highest to lowest absolute Cohen’s d value based on all tumours. Cohen’s d values < 0.2 represent a negligible effect size, while values above 0.2, 0.5 and 0.8 represent small, medium and large effect sizes respectively

From: Semi-quantitative and quantitative dynamic contrast-enhanced (DCE) MRI parameters as prostate cancer imaging biomarkers for biologically targeted radiation therapy