Patient characteristics between those with an ipsilateral stenotic transverse sinus (group A) and those with a normal transverse sinus (group B)
| Group A (n = 15) | Group B (n = 34) | |
|---|---|---|
| Age (yr) | 74.5 + 10.2 | 73.9 + 10.3 |
| Sex (M/F) | 12:3 | 31:5 |
| Hypertension | 5 (33%) | 13 (38%) |
| MR imaging evidence of prior stroke | 6 (40%) | 16 (47%) |
| Stenosis degree | 82% | 81% |
| Lack of collaterals in MRA | 2 (13%) | 6 (18%) |