Figure 5

On the left hand side, ROC curves regarding prediction of FIV (group B) using ATI. On the right hand side, optimal threshold distribution per subject regarding CBF_rel of ATI using Dice’s coefficient and Youden-Index. CBV = cerebral blood volume. MTT = mean transit time. CBF = cerebral blood flow. Tmax = time to the maximum of the residue function obtained by deconvolution.