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Summary of the classification of cerebrovascular architecture in n=35 patients with cryptogenic stroke.
| Vascular Region | Convectional architecture | # of patients N (%) |
|---|---|---|
| Circle of Willis | presence of bilateral posterior and anterior communicating arteries | 14 (40%) |
| Aortic arch | normal arch with patent vertebral arteries and conventional branching anatomy | 23 (66%) |
| Basilar artery supply | Both vertebral arteries join together to form basilar artery | 31 (89%) |
