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Relationship between the COW completeness and symptomatic MCA plaques inducing perforator infarctions.
| COW integrity | Plaques without perforator infarcts (n = 18) | Plaques with perforator infarcts (n = 31) | P-value |
|---|---|---|---|
| A-COW | 0.417 | ||
| Complete, n (%) | 12 (66.7%) | 17 (54.8%) | |
| Incomplete, n (%) | 6 (33.3%) | 14 (45.2%) | |
| P-COW | 0.229 | ||
| Complete, n (%) | 1 (5.6%) | 7 (22.6%) | |
| Incomplete, n (%) | 17 (94.4%) | 24 (77.4%) |
COW, circle of Willis; A-COW, anterior COW; P-COW, posterior COW; MCA, middle cerebral artery.
