Subjects with various PSMA-related disease patients (prostate cancer, hepatic cancer, etc.) underwent 68Ga/18F-PSMA/PSFA PET/CT either for an initial assessment or for recurrence detection. Lesions uptake was quantified by the maximum standard uptake value (SUVmax). The sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and accuracy of 68Ga/18F-PSMA/PSFA PET/CT were calculated.