Clinical use
Use this calculator for peripheral arterial disease diagnostic interpretation in thesurgery workflow. It is decision support and should be interpreted with the patient context, local protocols, and clinician judgment.
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Surgery
Ankle-Brachial Index (ABI) Calculator
Peripheral arterial disease diagnostic interpretation
Calculate ABI
Interpretation
Normal: 1.00-1.40. Mild-moderate PAD: 0.41-0.90. Severe PAD/CLI: ≤0.40. >1.40: non-compressible (consider TBI).
Required inputs
- Ankle Pressure
- Brachial Pressure
Evidence and limitations
This page cites 1 published reference. Confirm units and inclusion criteria before applying the output; calculators do not replace assessment, escalation, or local policy.
References
- Aboyans V et al. Eur Heart J 2018;39:763-816
Frequently asked questions
What is the Ankle-Brachial Index (ABI)?
Ankle-Brachial Index (ABI) is a clinical calculator used for Peripheral arterial disease diagnostic interpretation.
How do I interpret the Ankle-Brachial Index (ABI)?
Normal: 1.00-1.40. Mild-moderate PAD: 0.41-0.90. Severe PAD/CLI: ≤0.40. >1.40: non-compressible (consider TBI).
What inputs are required for the Ankle-Brachial Index (ABI)?
Required inputs include Ankle Pressure, Brachial Pressure.
What is the evidence behind the Ankle-Brachial Index (ABI)?
The Ankle-Brachial Index (ABI) page cites Aboyans V et al. Eur Heart J 2018;39:763-816.
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