Research Article
CTA Characteristics of the Circle of Willis and Intracranial Aneurysm in a Chinese Crowd with Family History of Stroke
Table 3
Anatomical variations in the posterior Circle of Willis.
| | Participants, | Normal circle, (%) | Prevalence of variants, | Incomplete proportion, (%) | | Complete | Incomplete | Total of variants | | | | | | | | | | |
| | Male | 153 | 29 (19.0) | 0 | 4 | 14 | 89 | 1 | 7 | 5 | 3 | 1 | 0 | 124 | 120 (78.4) | | Female | 128 | 26 (20.3) | 7 | 2 | 18 | 58 | 6 | 3 | 5 | 1 | 1 | 1 | 102 | 93 (72.7) | | Total | 281 | 55 (19.6) | 7 | 6 | 32 | 147 | 7 | 10 | 10 | 4 | 2 | 1 | 226 | 213 (75.8) | | value | | | | | | | | | | | | | | 0.26 |
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