PSA density

PSA density

The relationship of the prostate specific antigen level to the size and weight (volume) of the prostate.

PSA density

Prostate-specific antigen density. A triggering factor for assessing PSA levels, by factoring transrectal ultrasonography (TRUS) into the decision to refer a patient for a prostate biopsy. While PSAD reduces biopsies, ultrasonographers may under- or over-read the images.