Interestingly, although a lobulated appearance showed an increased risk, this did not reach statistical significance (OR, 3.45; 95% CI, 1.27–9.37; P < 0-001 0.015), suggesting that an increasingly irregular morphology is important in the risk of rupture.
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Difference in aneurysm characteristics between ruptured and unruptured aneurysms in patients with multiple intracranial aneurysms.
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