ABSTRACT
Radiotherapy plays an important role in almost all stages of prostate cancer treatment. Prostate specific membrane antigen (PSMA)-positron emission tomography (PET) is frequently used due to its superiority over conventional imaging in both staging and detection of recurrences. As the data increases, it has become clear that it is a revolutionary imaging method, especially in prostate cancer patients treated with radiotherapy, with its effects on treatment decisions, sensitivity in treatment response evaluation and prognostic importance. In this review, we tried to collect information about the effectiveness of PSMA-PET at all stages, from the treatment decision to response evaluation and treatment for metastasis in oligometastatic patients, in patients receiving radiotherapy for prostate cancer.