Bedside steps

1. 1
   Carotid stenosis

   Compute extracranial ICA stenosis from diameters (NASCET, optional ECST) with grade and management direction.

   Calculate here · Carotid stenosis ▾Full details →
2. 2
   Intracranial stenosis

   Compute intracranial arterial stenosis from diameters (WASID method) with grade and management direction (distinct from…

   Calculate here · Intracranial stenosis ▾Full details →
3. 3
   Vulnerable plaque

   Check carotid-plaque high-risk imaging features (IPH, large lipid core, thin/ruptured cap, ulceration, ultrasound hypoe…

   Calculate here · Vulnerable plaque ▾Full details →
4. 4
   Small aneurysm (China)Alternate branch

   For ≤ 5 mm small aneurysms, assesses rupture risk by morphologic irregularity, aspect ratio (AR), size ratio (SR), and …

   Calculate here · Small aneurysm (China) ▾Full details →
5. 5
   BCVI screeningAlternate branch

   Decide, by the expanded Denver criteria, whether blunt trauma warrants neck CTA to screen for cerebrovascular injury.

   Calculate here · BCVI screening ▾Full details →

[Cervico-cranial vessels · bedside workflow]
Carotid stenosis：not calculated
Intracranial stenosis：not calculated
Vulnerable plaque：not calculated
Small aneurysm (China)：not calculated
BCVI screening：not calculated
Guideline：Carotid / intracranial stenosis guidance (see tool pages for exact version notes)
Reviewed：2026-09-05
For licensed clinicians only. Local calculation; does not replace clinical judgment or individualized shared decision-making. Integrate guideline version, patient preference, and bleed–thrombosis trade-offs.

For licensed clinicians only. Local calculation; does not replace clinical judgment or individualized shared decision-making. Integrate guideline version, patient preference, and bleed–thrombosis trade-offs.