Research suggests that PSMA PET/CT scans can help guide treatment for recurrent prostate cancer, potentially improving outcomes. These scans may be able to detect returning cancer earlier, even at low PSA levels, and could be used to guide salvage radiotherapy after prostatectomy. The use of PSMA PET/CT scans for this purpose is being studied, with some findings indicating favorable outcomes and others aiming to define their role in guiding treatment.