CT Colonography C-RADS Classification — free guideline decision tool
Get the colonic (C0–C4) and extracolonic (E0–E4) categories and management for CT colonography per C-RADS v2023. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What does CT Colonography C-RADS Classification do?
Classify a CT colonography study and set the management for both colonic and extracolonic findings.
How is the result calculated?
C1 normal → routine screening (5–10 yr); C2 (1–2 polyps 6–9 mm) → CTC surveillance ~3 yr or colonoscopy; C3 (≥ 10 mm or ≥ 3 polyps 6–9 mm) → colonoscopy; C4 suspected malignant → surgical/oncology referral.
Is this a substitute for clinical judgement?
No. All results are decision-support only, for licensed clinicians. They must be individualized to the whole patient and the latest guideline version.
Run CT Colonography C-RADS Classification now
Get the colonic (C0–C4) and extracolonic (E0–E4) categories and management for CT colonography per C-RADS v2023. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.