Fig. 2From: Reproducibility and usefulness of quantitative apparent diffusion coefficient measurements for predicting program death-ligand 1 expression in nasopharyngeal carcinomaCorrelations between ADC parameters and PD-L1 expression. (a-c) The ADCmean, ADCmin and ADCmax measured at 1.5-T MRI have a weak or moderate inverse correlation with the CPS, showing correlation coefficients (r) of -0.52, -0.370 and − 0.48, respectively. (b) The ADCmean, ADCmin and ADCmax measured at 3.0-T MRI have a moderate inverse correlation with the CPS, showing r of -0.60, -0.52 and − 0.58, respectivelyBack to article page