Saved Results

No results saved yet.

Enter a patient name and hit Save on a result.

HomePI-RADS™ v2.1 (Prostate MRI)
Pin your most used calculators here by clicking the star in the dropdown.

PI-RADS™ v2.1 (Prostate MRI)

Clinical Context & Background

PI-RADS™ v2.1 is the standard reporting system for multiparametric MRI of the prostate. It assigns a score (1-5) representing the likelihood that a lesion represents clinically significant cancer (Gleason ≥ 7).
Primary Source EvidenceTurkbey 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):340-351.
Formula Logic
Categorical assessment based on DWI, ADC, and T2W features.

Reference Data

PI-RADS ScoreLikelihood of Significant Cancer
1Very Low
2Low
3Intermediate (Equivocal)
4High
5Very High

Share This Calculator

Share:

Related Tools

D'Amico Risk ClassificationEpstein Criteria (Insignificant Cancer)Gleason Score & ISUP Grade

Evidence-based oncology decision support. Verify with clinical guidelines.