Distribution of circle of Willis status in the patients without contralateral occlusion (groups A + C) and those with contralateral occlusion (group B)
| Circle of Willis Status | Group A + C | Group B | ||
|---|---|---|---|---|
| Ischemia (n = 11) | No Ischemia (n = 85) | Ischemia (n = 12) | No Ischemia (n = 9) | |
| Good communicator | 9 | 68 | 4 | 8 |
| Poor communicator | 2 | 6 | 8 | |
| Uncertain communicator* | 11 | 1 | ||
* These are composed of circle of Willis patterns of indeterminate-indeterminate, indeterminate-incomplete, and incomplete-indeterminate.