Dural arteriovenous fistula location according to angiographic type
| Dural Venous Sinus | Type I | Type II | Type III |
|---|---|---|---|
| Cavernous | 6 | 5 | — |
| Transverse/sigmoid | 2 | 4 | 3 |
| Superior sagittal | — | 2 | — |
| Superior petrosal | — | 1 | — |
| Tentorial | — | — | 2 |
| Anterior skull base | — | — | 1 |
| Foramen magnum | — | — | 1 |
Note.—numerals indicate patient numbers.