Chinese Small-Aneurysm (≤ 5 mm) Rupture Risk (Morphologic) — free guideline decision tool
This tool assesses rupture risk for ≤ 5 mm intracranial aneurysms using morphologic irregularity, aspect ratio, and size ratio, complementing PHASES.
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 Chinese Small-Aneurysm (≤ 5 mm) Rupture Risk (Morphologic) do?
Use for small aneurysms where PHASES discriminates poorly, weighting the three strong morphologic predictors plus clinical modifiers.
How is the result calculated?
Core: irregular morphology, AR (height/neck) ≥ 1.6, SR (height/parent-artery) ≥ 2. ≥ 2 core → higher risk; 1 → intermediate. Modifiers: hypertension, non-ICA location, smoking.
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 Chinese Small-Aneurysm (≤ 5 mm) Rupture Risk (Morphologic) now
This tool assesses rupture risk for ≤ 5 mm intracranial aneurysms using morphologic irregularity, aspect ratio, and size ratio, complementing PHASES.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.