Table 2.
Anatomic and angiographic characteristics
| Total (n = 28) | DSM (n = 17) | IDAVS (n = 3) | ADAVS (n = 8) | |
|---|---|---|---|---|
| Locationa | ||||
| Torcular (+− SSS or transverse sinuses) | 11 (39.3) | 10 (58.8) | 0 | 1 (12.5) |
| SSS | 6 (21.4) | 2 (11.8) | 1 (33.3) | 3 (37.5) |
| Lateral (transverse/sigmoïd) | 7 (25) | 3b (17.6) | 0 | 4 (50) |
| Tentorial | 1 (3.6) | 1 (5.9) | 0 | 0 |
| Cavernous/paracavernous | 2 (7.1) | 0 | 0 | 2 (25) |
| Sphenoparietal | 3 (10.7) | 1 (5.9) | 2 (66.7) | 0 |
| Angiographic features | ||||
| Mean arterial feeders (min–max) | 4,5 (1–8) | 5,5 (1–8) | 5,3 (4–7) | 2,4 (1–5) |
| >1 DAVS | 5 (17.9) | 0 | 3 (100) | 2 (25) |
| Venous sinus dilatation | 17 (60.7) | 17 (100) | 0 | 0 |
| Jugular bulbs steno-occlusive disease | 18 (64.3) | 11 (64.7) | 2 (66.7) | 5 (62.5) |
| Unilateral | 5 (17.9) | 3 (17.6) | 1 (33.3) | 1 (12.5) |
| Bilateral | 13 (46.4) | 8 (47.1) | 1 (33.3) | 4 (50) |
| Thrombosed sinus | 12 (42.9) | 5 (29.4) | 1 (33.3) | 6 (75) |
| Cavernous capture | 24 (85.7) | 13 (76.5) | 3 (100) | 8 (100) |
| SS unseen on the venous phase | 11 (39.3) | 10 (58.8) | 1 (33.3) | 0 |
| Cortical venous reflux | 16 (57.1) | 11 (64.7) | 3 (100) | 2 (25) |
| Deep venous reflux | 12 (42.9) | 9 (52.9) | 2 (66.7) | 1 (12.5) |
Data are presented as n(%).
DSM, dural sinus malformation; IDAVS, infantile dural arteriovenous shunt; ADAVS, adult-type dural arteriovenous shunt; SS, straight sinus; SSS, superior sagittal sinus; DAVS, dural arteriovenous shunt.
a
Two patients presenting 2 DAVSs on different sinuses.
b
DSM with AVS of single-hole subtype.