RadiologyProstate MRI
PI-RADS v2.1 Calculator
Prostate Imaging Reporting & Data System — determine overall PI-RADS assessment from T2W, DWI, and DCE scores by zone
Lesion Assessment
Score each MRI sequence for the lesion, then calculate PI-RADS category
Lesion Zone
PZ: DWI is the dominant (primary) sequence
T2-Weighted Imaging (T2W)
Diffusion-Weighted Imaging (DWI)
Dynamic Contrast Enhancement (DCE)
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Score each sequence
T2W · DWI · DCE → Overall PI-RADS 1–5