Researchers discover link between PSA level at time of salvage therapy following surgery and risk of death

The performance characteristics of prostate-specific membrane antigen positron emission tomography improves with increasing prostate-specific antigen (PSA) level. This, coupled with insurance approval concerns if applied for too early, causes some physicians to delay post-radical prostatectomy salvage radiation therapy (sRT) until well after PSA failure, typically at PSA levels exceeding 0.30 ng/ml.