Prostate Volume & PSA Density
Calculate the prostate volume and/or PSA density based on measurements on MRI, CT, or US.
Ellipsoid Prostate Volume=π/6×DAP×DL×DT
Bullet shaped Prostate Volume=π/4.8×DAP×DL×DT
DAP= Maximum diameter in the Anterior-Posterior plane
DL= Maximum diameter in the Longitudinal plane
DT= Maximum diameter in the Transverse plane
References:
- Stanzione A, Ponsiglione A, Di Fiore GA, et al. Prostate Volume Estimation on MRI: Accuracy and Effects of Ellipsoid and Bullet-Shaped Measurements on PSA Density. Acad Radiol. 2021;28(8):e219-e226. doi:10.1016/j.acra.2020.05.014
- Haas M, Günzel K, Miller K, Hamm B, Cash H, Asbach P. Is the Ellipsoid Formula the New Standard for 3-Tesla MRI Prostate Volume Calculation without Endorectal Coil?. Urol Int. 2017;98(1):49-53. doi:10.1159/000448593
- Littrup PJ, Williams CR, Egglin TK, Kane RA. Determination of prostate volume with transrectal US for cancer screening. Part II. Accuracy of in vitro and in vivo techniques. Radiology. 1991;179(1):49-53. doi:10.1148/radiology.179.1.2006303
Thank you for this very helpful site.
Saves a lot of my reading time and improved my accuracy
please check Prostate volume calculator. The calculation tool is incorrect.
Thank you for your kind feedback Dr. Doss. The issue has been resolved.