FOLH1 and carcinoma: Using ROC analysis SUVmax 5.4 was found to be an optimal cut off-level to distinguish between low- and high-grade carcinoma by means of 68Ga-PSMA PET/CT (AUC = 0.9692; 95% CI 0.9086; 1.0000; SD(AUC) = 0.0309) (Figure 3).