Patient characteristics
| Patient No. | Age (yr) | Sex | Symptoms | Side of Occlusion | Contralateral Side | Collateral Flow Pathways |
|---|---|---|---|---|---|---|
| 1 | 44 | F | Stroke | Right | 30% | P + L |
| 2 | 55 | M | TIA | Right | – | P |
| 3 | 55 | M | Stroke | Right | – | A + P |
| 4 | 48 | M | TIA | Right | – | A + P + L |
| 5 | 53 | M | Stroke | Left | – | A + P |
| 6 | 65 | M | Stroke | Right | – | A + L |
| 7 | 77 | M | AF | Right | – | A + P |
| 8 | 56 | M | TIA | Left | – | A + P |
| 9 | 47 | F | Stroke | Right | – | P |
| 10 | 55 | M | Stroke | Left | 90% | A + L |
| 11 | 68 | M | TIA | Left | 70% | L |
| 12 | 58 | M | Stroke | Right | 30% | A |
| 13 | 53 | M | TIA | Right | 30% | A + P + L |
| 14 | 65 | M | TIA | Right | – | A + L |
| 15 | 60 | M | Stroke | Left | 30% | A + P |
| 16 | 53 | M | Stroke | Right | – | A + L |
| 17 | 58 | M | Stroke | Left | 50% | P + L |
Note:—TIA indicates transient ischemic attack; AF, amaurosis fugax; A, anterior collateral pathway; P, posterior collateral pathway; L, leptomeningeal vessels; –, no stenosis.