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Table 2 Relative locations and morphologic factors

From: Influence of morphology and hemodynamic factors on rupture of multiple intracranial aneurysms: matched-pairs of ruptured-unruptured aneurysms located unilaterally on the anterior circulation

Variables

Aneurysms

p value ‡ (2-tailed)

Total (n = 40)

Ruptured group (n = 20)

Unruptured group (n = 20)

Relative location

    

Distal (%)

20 (50)

11 (55)

9 (45)

0.824

Proximal (%)

20 (50)

9 (45)

11 (55)

 

Morphology type

    

Lateral (%)

15 (37.5)

6 (30)

9 (45)

0.581

Bifurcation (%)

25 (62.5)

14 (70)

11 (55)

 

Regular

22 (55)

5 (25)

17 (85)

0.002

Irregular

18 (45)

15 (75)

3 (15)

 

Maximum height, mm

3.94 (1.977)

4.68 (1.605)

3.20 (2.076)

0.041

Neck width, mm

3.58 (1.308)

3.77 (1.468)

3.39 (1.131)

0.351

Surface area, mm2

32.20 (38.809)

42.82 (41.895)

27.14 (15.980)

0.062

Volume,mm3

20.85 (41.064)

31.18 (43.944)

16.08 (14.697)

0.108

Aspect ratio

1.11 (0.399)

1.31 (0.402)

0.92 (0.290)

0.004

  1. The comparisons of maximum height and aspect ratio between the two groups were of significant differences (p < 0.05). (‡, McNemar’s test, paired-sample t test or Wilcoxon’s sign rank test as appropriate).
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BMC Neurology

ISSN: 1471-2377

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