SUO 2020: The Role of Prostate-Specific Membrane Antigen (PSMA) Scanning in Prostate Cancer (Up)Staging (UroToday.com) At the 2020 virtual Society of Urologic Oncology's (SUO) prostate cancer session, Dr. Declan Murphy discussed the role of prostate-specific membrane antigen (PSMA) scanning in prostate cancer staging. Dr. Declan Murphy states that PSMA PET/CT is an obvious challenger to conventional imaging. Because there was a lot of retrospective data (particularly in Australia) with PSMA PET-CT, Dr. Murphy and colleagues set out to assess prospectively the use of PSMA PET-CT among patients with high-risk prostate cancer before curative-intent surgery or radiotherapy – the proPSMA study.