Supratentorial dural venous channel characteristics, based on review of 100 consecutive angiograms
| No. | % | |
|---|---|---|
| Patients with supratentorial dural venous channels | 26 | 26 |
| No. of supratentorial dural venous channels | 29 | 29 |
| Average dural venous channel length (mm) | 20 | |
| No. of dural venous channels on right side | 19 | 66 |
| Dural venous channel, female patients | 20 | 77 |
| Overall No. of females in angiographic sample | 63 | 63 |
| Location of supratentorial dural venous channela | ||
| Posterior temporal | 19 | 66 |
| Parietal | 4 | 14 |
| Occipital | 6 | 21 |
↵a Excludes “dural venous lakes” and vertex falx cerebri channels.