KLK3 and posterior cortical atrophy: In a head-to-head comparative meta-analysis [3], PET/CT with PSMA-targeted agents was superior in detecting PCa lesions only at low PSA levels (≤1 ng/mL) when compared to radiolabeled Cho PET/CT in BR-PCa; for PSA ≤ 1 ng/mL, the detection rate of PET/CT with radiolabeled Cho and PSMA-targeted agents were 27% and 54%, respectively.