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PI-RADS v2.1 (Prostate MRI)

ACR PI-RADS v2.1 (2019)

Assigns an ACR PI-RADS v2.1 assessment category (1-5) to a prostatic lesion on multiparametric MRI, using zone-specific dominant sequences: DWI for the peripheral zone and T2W for the transition zone, with DCE as a tie-breaker in the peripheral zone.

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Is the DWI adequate?
Is the DCE adequate?
Lesion location (zone)
DWI/ADC score (dominant for peripheral zone)
T2W score (dominant for transition zone)
DCE appearance
Information
Incomplete input
  • Missing: lesion zone (peripheral vs transition)

References

Implemented from the cited published sources. Educational use only; confirm against current guidelines before clinical use.

Clinical questions that use this

Vetting guides that reach for this tool.

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