Imaging features of the vein of Galen malformations
| Diagnostic features | No (%) |
|---|---|
| Choroidal | 11 (26.8) |
| Mural | 12 (29.3) |
| Mixed | 13 (31.7) |
| Common feeding arteries | |
| Choroidal artery | 28 (68.3) |
| Posterior cerebral artery | 19 (46.3) |
| Thalamoperforatoring artery | 18 (43.9) |
| Anterior cerebral artery | 8 (19.5) |
| Pericallosal artery | 6 (14.6) |
| Radiological features | |
| Venous enlargement | 22 (53.7) |
| Anomalous dural sinus | 20 (48.8) |
| Patent falcine vein | 19 (46.3) |
| Sinus stenosis | 16 (39.0) |
| Absent straight sinus | 13 (31.7) |
| Venous ectasia | 12 (29.3) |
| Venous reflux | 11 (26.8) |
| Limbic arch | 10 (24.4) |
| Alternate pathways of venous drainage | 9 (22.0) |
| Connection to deep venous system | 6 (14.6) |
| Occipital sinus | 5 (12.2) |
| Periventricular drainage | 5 (12.2) |
| Venous sinus thrombus or occlusion | 4 (9.8) |