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An optimal threshold value of 0.887 × 10−3 mm2 s−1 is suggested as the cut-off point, which results in 93.33% sensitivity, 80.95% specificity and 88.20% accuracy; area under the receiver operating characteristic curve reaches as high as 0.887, with 95% confidence interval from 0.767 to 0.959 (p < 0.0001). ADC, apparent diffusion coefficient.
