Guideline decision tool · Radiology
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Coronary CTA CAD-RADS 2.0 Classification — free guideline decision tool

Grade coronary CTA by the most severe stenosis (0–5/N) with ischaemia and high-risk-plaque modifiers per CAD-RADS 2.0, with management direction. Instant, browser-side.

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Computed locally — no data uploaded. For licensed clinicians.
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Guideline-based

Implements the decision logic from published clinical guidelines.

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Runs in your browser

No installation. Enter the patient's values and get a guideline recommendation instantly.

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Data stays local

Nothing is uploaded. Results are for licensed clinicians only.

Worked calculation

The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.

Most severe luminal stenosis (per-patient)50–69% moderate
Ischaemia modifier (CT-FFR/CTP)I+ positive
High-risk plaque (HRP)Yes

→CategoryCAD-RADS 3 / HRP/I+

  • Category:CAD-RADS 3: 50–69% moderate
  • Management:optimise medical therapy (GDMT)[Pending update] Some thresholds, grades and management recommendations on this page that conflict with current guidelines or are unverified are temporarily hidden pending verification against the guideline text.
  • Modifiers:HRP, I+ (included); also annotate P1–P4 plaque burden, S stent, G graft, E non-atherosclerotic as needed
Most severe luminal stenosis (per-patient)0% (no plaque/stenosis)
Ischaemia modifier (CT-FFR/CTP)Not done
High-risk plaque (HRP)Yes

→CategoryCAD-RADS 0 / HRP

  • Category:CAD-RADS 0: 0% (no plaque/stenosis)
  • Management:No obstructive CAD: no further cardiac testing; general prevention by risk factors
  • Modifiers:HRP (included); also annotate P1–P4 plaque burden, S stent, G graft, E non-atherosclerotic as needed

Common questions

What is Coronary CTA CAD-RADS 2.0 Classification?

Grade coronary CTA by the most severe stenosis (0–5/N) with ischaemia and high-risk-plaque modifiers per CAD-RADS 2.0, with management direction. Instant, browser-side.

How is Coronary CTA CAD-RADS 2.0 Classification calculated? What is the core formula?

0 none, 1–2 non-obstructive, 3 moderate (50–69%), 4A severe (70–99%), 4B left main > 50% or 3-vessel ≥ 70%, 5 occlusion, N non-diagnostic. Modifiers: P (plaque burden), HRP, I (ischaemia), S/G/E.

When is Coronary CTA CAD-RADS 2.0 Classification used?

Standardise coronary CTA reporting and the downstream management direction.

What are the key clinical points for Coronary CTA CAD-RADS 2.0 Classification?

Graded by the per-patient most severe luminal stenosis (segments > 1.5 mm). CAD-RADS 3. CAD-RADS 4B (high-risk anatomy)

What are the limits and cautions when using Coronary CTA CAD-RADS 2.0 Classification?

For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.

Does Coronary CTA CAD-RADS 2.0 Classification upload patient data? Where is it calculated?

Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.

How is Coronary CTA CAD-RADS 2.0 Classification calculated in practice? Can you show a worked example?

Inputs: Most severe luminal stenosis (per-patient) 50–69% moderate, Ischaemia modifier (CT-FFR/CTP) I+ positive, High-risk plaque (HRP) Yes → Result: Category CAD-RADS 3 / HRP/I+(Category: CAD-RADS 3: 50–69% moderate, Management: optimise medical therapy (GDMT)[Pending update] Some thresholds, grades and management recommendations on this page that conflict with current guidelines or are unverified are temporarily hidden pending verification against the guideline text., Modifiers: HRP, I+ (included); also annotate P1–P4 plaque burden, S stent, G graft, E non-atherosclerotic as needed) Inputs: Most severe luminal stenosis (per-patient) 0% (no plaque/stenosis), Ischaemia modifier (CT-FFR/CTP) Not done, High-risk plaque (HRP) Yes → Result: Category CAD-RADS 0 / HRP(Category: CAD-RADS 0: 0% (no plaque/stenosis), Management: No obstructive CAD: no further cardiac testing; general prevention by risk factors, Modifiers: HRP (included); also annotate P1–P4 plaque burden, S stent, G graft, E non-atherosclerotic as needed)

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Run Coronary CTA CAD-RADS 2.0 Classification now

Grade coronary CTA by the most severe stenosis (0–5/N) with ischaemia and high-risk-plaque modifiers per CAD-RADS 2.0, with management direction. Instant, browser-side.

Open guideline tool →

For licensed clinicians. Not a substitute for clinical judgement.

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