PSA density and prostate volume
PSA adjusted for prostate volume (ellipsoid formula).
Inputs
0 of 4ng/mL
cm
cm
cm
When to use
- Deciding on biopsy, especially with PI-RADS 3 lesions.
Pearls and pitfalls
- Above 0.15 ng/mL/mL raises suspicion for clinically significant cancer.
Why use
Corrects PSA for benign enlargement.
Volume (mL) = length × width × height (cm) × 0.52; PSAD = PSA ÷ volume