Exclusion criteria | No of patients |
---|---|
Underopacification of the sinuses (density <200 HU). | 117 |
Any change in vision | 93 |
Potential mass effect on the sinuses:
| 46 |
Medically refractory headaches | 19 |
Confirmed or presumed idiopathic intracranial hypertension | 8 |
Tinnitus | 7 |
Lumbar puncture with opening pressure >20 | 2 |
Multiple sclerosis | 0 |
Venous sinus thrombosis | 0 |
Note that some patients met more than one criterion. In total, 245 patients were excluded.