Fig. 3From: 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 distinguishing grades 2 and 3 breast cancer from grade 1 tumors. Threshold ADC value = 1.03, sensitivity = 56.2%, specificity = 67.9%, positive predictive value = 18.2%, and negative predictive value = 92.4%Back to article page