Fig. 6From: Can diffusion-weighted imaging predict tumor grade and expression of Ki-67 in breast cancer? A multicenter analysisROC curve for use of apparent diffusion coefficient (ADC) values in discrimination between tumors with low Ki-67 expression (< 25%) and high Ki-67 expression (≥ 25%). The threshold ADC value was 0.91. Sensitivity = 64.4%, specificity = 50.0%Back to article page