Matched-pair comparison of 68Ga-PSMA-11 and 18F-rhPSMA-7 PET/CT in patients with primary and biochemical recurrence of prostate cancer: frequency of non-tumor related uptake and tumor positivity.

Purpose: Radiohybrid prostate-specific membrane antigen (rhPSMA) ligands are a new class of prostate cancer theranostic agents. 18F-rhPSMA-7, offers the advantages of 18F-labelling and low urinary excretion compared with 68Ga-PSMA-11.