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Table 3 Hemodynamic 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)
WSSmax, Pa 53.72 (26.075) 55.65 (32.700) 51.78 (17.845) 0.607
WSSmin, Pa 0.75 (1.268) 0.28 (0.289) 1.22 (1.658) 0.020
TAWSS, Pa 13.87 (8.774) 12.72 (10.234) 15.02 (7.105) 0.392
OSI, Pa 0.0090 (0.00940) 0.0104 (0.02054) 0.0061 (0.00871) 0.156
LSA,% 0.40 (4.344) 2.55 (16.536) 0.12 (1.044) 0.011
Flow stability
Stable (%) 14 (35) 6 (30) 8 (40) 0.754
Unstable (%) 26 (65) 14 (70) 12 (60)  
Flow complexity
Simple (%) 11 (27.5) 3 (15) 8 (40) 0.125
Complex (%) 29 (72.5) 17 (85) 12 (60)  
WSSmax location    
Neck (%) 33 (82.5) 17 (85) 16 (80) 1.000
Dome (%) 7 (17.5) 3 (15) 4 (20)  
WSSmin location    
Neck (%) 9 (22.5) 1 (5) 8 (40) 0.039
Dome (%) 31 (77.5) 19 (95) 12 (60)  
  1. The comparisons of WSSmin, LSA and WSSmin location on the aneurysms between the two groups were of significant differences (p < 0.05). (‡, paired-sample t test, Wilcoxon’s sign rank test or McNemar’s test as appropriate).