MR angiographic findings of intracranial dural arteriovenous fistula with and without retrograde leptomeningeal venous drainage
| RLVD Absence (n = 5) | RLVD Presence (n = 6) | |
|---|---|---|
| Identifiable fistula* | 0 | 5 (83) |
| Flow-related enhancement | 4 (80) | 6 (100) |
| Prominent extracranial vessel | 0 | 4 (67) |
Note.—RLVD indicates retrograde leptomeningeal venous drainage. Numbers in parentheses indicate percentages.
* P < .05.