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PI-RADS Report Assistant
Prostate MRI scoring helpers — image quality (PI-QUAL v2), gland volume + PSA-D, lesion-level PI-RADS v2.1. Stateless; nothing is saved.
Image Quality (PI-QUAL v2)
de Rooij 2024
Protocol:
T2-WI
0 / 4
T2-weighted imaging
Essential prerequisite
Slice thickness 3 mm
If unchecked, score is automatically 0/4.
1.Axial — adequate SNR in all parts of the image
2.Axial — clearly delineate relevant prostatic structures (capsule, seminal vesicles, ejaculatory ducts, NVB, ext. urethral sphincter)
3.Axial — absence of significant artifacts in the prostatic region
4a.Sagittal — adequate SNR & resolution AND absence of significant artifacts
4b.Coronal — adequate SNR & resolution AND absence of significant artifacts
Criterion 4: both sagittal and coronal must be adequate — if either is poor, the point is lost.
DWI
0 / 4
Diffusion-weighted imaging
Essential prerequisites
Slice thickness ≤ 4 mm
High b-value sequence (≥ 1400 s/mm², calculated or acquired)
ADC map from ≥ 2 b-values up to 1000 s/mm²
If any unchecked, score is automatically 0/4.
1.Adequate contrast and SNR on high b-value images
2.Adequate range of contrast to differentiate TZ/BPH from PZ on ADC maps
3.Absence of significant artifacts in the prostatic region
4.Anatomical matching of ADC / high b-value to axial T2-WI
DCE
−
Dynamic contrast-enhanced
Essential prerequisites
Slice thickness 3 mm
Temporal resolution ≤ 15 s
Fat saturation (or post-processing: subtraction / heat maps)
If any unchecked, DCE is automatically ‘−’.
1.Absence of significant artifacts in the prostatic region AND appropriate bolus enhancement
2.Ability to identify anatomical structures (e.g. capsular vessels, pudendal artery)
Both criteria must pass for DCE ‘+’.
1
Inadequate
No criteria scored yet.
Copy to report
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Gland Volume & PSA Density
ellipsoid · PSA-D bands per PI-RADS v2.1Gland volume (ellipsoid)
cm (L × W × H)
— cc
PSA density
ng/mL
— ng/mL²
Copy to report
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PI-RADS Lesions (v2.1)
up to 3 lesions · PZ dominant = DWI · TZ dominant = T2Extraprostatic Extension
invasion of adjacent structuresThe MRI EPE risk grade (Mehralivand 2019) is set per lesion on each PI-RADS 4–5 lesion above, and appears with that lesion in the report.
No lesions yet.
PI-QUAL guides whether to repeat a scan; withhold PI-RADS scoring for PI-QUAL 1 scans.
PI-QUAL v2 © de Rooij M, Allen C, Twilt JJ, et al. Eur Radiol 2024;34:7068–7079. PI-RADS v2.1 © Turkbey B, Rosenkrantz AB, Haider MA, et al. Eur Urol 2019;76:340–351.
