Borden Classification (Dural AV Fistula)
The Borden classification of a dural arteriovenous fistula (DAVF), by the pattern of venous drainage, types I/II/III.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Borden type
- II - dural sinus with cortical venous reflux
Result: Borden type II: drains into a dural sinus but with retrograde flow into cortical veins.
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Type I
- Dural sinus / meningeal vein, antegrade flow, no cortical venous drainage (benign).
- Type II
- Dural sinus with retrograde cortical venous reflux.
- Type III
- Cortical venous drainage only, no dural sinus (aggressive).
What you enter
- Borden type
How this is calculated
Borden JA, Wu JK, Shucart WA. A proposed classification for spinal and cranial dural arteriovenous fistulous malformations and implications for treatment. J Neurosurg. 1995;82(2):166-179. Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.