Prostate Volume & PSA Density Calculator

Enter the three prostate dimensions in cm (and optionally PSA) to get the ellipsoid volume, PSA density and a sentence you can paste straight into the report.

Disclaimer:

Provided "as is" without warranty of any kind, express or implied, including accuracy, completeness or fitness for a particular purpose. For educational purposes only. The user is solely responsible for verifying results against the source guideline and for all clinical decisions.

Enter 3 or 4 values; the 4th is PSA in ng/mL. "x" and "cm" are optional.

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Formulas and thresholds

Volume uses the ellipsoid formula: length ร— width ร— height ร— ฯ€/6 (equivalent to 0.52 ร— L ร— W ร— H). PSA density = serum PSA (ng/mL) / volume (mL); a PSA density โ‰ฅ 0.15 ng/mL/mL is the conventional threshold associated with higher risk of clinically significant prostate cancer. Size interpretation: โ‰ค 30 mL normal, 30โ€“50 mild, 50โ€“80 moderate, > 80 mL severe prostatomegaly.

References

  1. Turkbey B, Rosenkrantz AB, Haider MA, et al. Prostate Imaging Reporting and Data System Version 2.1: 2019 Update of Prostate Imaging Reporting and Data System Version 2. Eur Urol. 2019;76(3):340โ€“351. doi:10.1016/j.eururo.2019.02.033