Table 2 Aneurysmal shapes and hemodynamic features of the three groups.

From: Association of bleb formation with peri-aneurysmal contact in unruptured intracranial aneurysms

Category

Group-A

Group-B

Group-C

Bleb

Yes

No

No

Contact

Yes

Yes

No

Age (y.o.)

64.79 ± 8.65

63.00 ± 12.58

66.78 ± 7.85

Location (Nr.)

14

13

18

MCA

1

10

8

AComA

7

2

6

IC-PC

5

0

0

BA-tip

1

0

3

AChorA

0

1

1

Neck width (mm)

5.71 ± 1.87

3.99 ± 0.85

5.53 ± 9.13

Dome depth (mm)

4.94 ± 2.55

2.83 ± 1.20

4.87 ± 14.77

Aspect ratio

0.87 ± 0.42

0.70 ± 0.33

0.48 ± 0.30

Dome surface area (mm2)

118.23 ± 79.69

40.60 ± 23.43

18.77 ± 13.53

Dome volume (mm3)

155.64 ± 130.89

34.25 ± 28.12

12.28 ± 12.48

WSS-p

3.07 ± 1.39

5.54 ± 4.46

4.88 ± 3.18

WSS-d

1.24 ± 0.64

3.43 ± 3.35

6.80 ± 5.55

NWSS

0.44 ± 0.24

0.56 ± 0.21

1.34 ± 0.60

  1. Group A: Bleb (Yes), Contact (Yes), Group B; Bleb (No), Contact (Yes); Group C; Bleb (No); Contact (No). NWSS, normalized wall shear stress; WSS, wall shear stress; WSS-p, WSS at the parent artery; WSS-d, WSS at the aneurysmal dome. All data are expressed as mean ± standard deviation.