PI-RADS (Prostate Imaging Reporting and Data System)
Standardizes prostate MRI interpretation to guide biopsy decisions for clinically significant prostate cancer detection
- Highest activation tier
- Recommended
- How it is scored
- Scored in code; a detected disagreeing draft value is flagged for correction
- Scoring type
- classification
- Care settings
- Inpatient, Outpatient
When it activates
Scribeable activates a calculator from the encounter. The PI-RADS (Prostate Imaging Reporting and Data System) can activate when the transcript or pasted chart context documents any of these:
- Prostate MRI interpretation
- Prostate lesion characterization
- Prostate biopsy decision
- Elevated PSA workup
- Prostate cancer risk assessment
A coded diagnosis can also activate it. ICD-10 prefixes carried by the registry: C61, N40, R97.20.
Inputs the note needs
1 input. Each is resolved from the transcript, the pasted chart context and charted labs; at this calculator’s tier a missing input is never requested, and a missing required input keeps the score out of the draft.
| Input | Type | Unit / options | Guidance |
|---|---|---|---|
| PI-RADS assessment category (1-5) | exam |
Scoring
PI-RADS 1: Very low (clinically significant cancer highly unlikely). PI-RADS 2: Low (clinically significant cancer unlikely). PI-RADS 3: Intermediate (equivocal — clinically significant cancer presence is equivocal). PI-RADS 4: High (clinically significant cancer likely). PI-RADS 5: Very high (clinically significant cancer highly likely). Based on T2-weighted, DWI/ADC, and DCE sequences with zone-specific scoring (peripheral vs transition zone).
Interpretation
PI-RADS 1-2: Biopsy generally not recommended on imaging alone. PI-RADS 3: Clinical factors determine biopsy decision (PSA density >0.15, strong family history, prior suspicious biopsy favor biopsy). PI-RADS 4-5: MRI-targeted biopsy recommended (fusion or cognitive targeting). Clinically significant cancer detection rates: PI-RADS 3 ~16%, PI-RADS 4 ~40-50%, PI-RADS 5 ~70-85%. Combined with PSA density for optimal risk stratification.
Evidence
Sources carried in Scribeable's citation registry for this calculator; guideline version: ACR PI-RADS v2.1.
- Turkbey B et al. Prostate Imaging Reporting and Data System Version 2.1 (PI-RADS v2.1)ACR PI-RADS v2.1 · 2019 · ACR · Consensus · link last verified 2026-03-28
How Scribeable handles it in the note
When an encounter activates the PI-RADS (Prostate Imaging Reporting and Data System) (its highest tier is recommended), Scribeable does not ask you for missing inputs. The score is computed in code from whatever inputs resolve from the transcript, the pasted chart context or charted labs; a computed value is written into the draft only when every required input already resolves.
The score is computed in code from the resolved inputs, not recalled by the language model. If the draft states a PI-RADS (Prostate Imaging Reporting and Data System) value that disagrees with the computed one, the disagreement is flagged to the second drafting pass, which is instructed to correct the score and its interpretation before you see the note.
Classified as a staging or classification system: activated strictly, because a wrong stage on the wrong patient is a documentation hazard.
See it activate on your own encounter
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