Even though [68Ga]Ga-PSMA is an excellent tracer to detect PCa and metastatic lesions in the lymph node or bone at low PSA levels [54], the advantage of the lower positron energy of 64Cu (Eβ+avg = 278 keV) vs. 68Ga (Eβ+avg = 829 keV) and the longer half-life (12.7 h) of 64Cu allow its distribution and use as [64Cu]Cu-PSMA-617 at various clinical PET centers with no sophisticated onsite radiotracer production facility [53]. This evidence concerns the gene FOLH1 and posterior cortical atrophy.