FOLH1 and neoplasm: Compared with that of Al18F-PSMA-BCH, the uptake values of Al18F-PSMA-CM in the blood, heart, liver, and spleen were higher, while those in 22Rv1 tumor were 6.83 ± 1.16 and 7.01 ± 1.17 ID%/g (P = 0.54) for Al18F-PSMA-CM and Al18F-PSMA-BCH, respectively.