Characteristics of the various groups of aneurysms
a
No.
Long Axis (mm)
Short Axis (mm)
Neck (mm)
Aspect Ratio
Group
1
12
11.3 ± 2.6
6.7 ± 2.1
5.8 ± 0.6
2.1 ± 0.6
2
8
16.9 ± 4.0
8.1 ± 1.3
4.8 ± 1.1
3.6 ± 1.0
3
28
26.1 ± 10.9
9.4 ± 1.4
5.8 ± 1.0
4.6 ± 1.8
P
value
.000
.01
.84
.001
↵
a
Data are means.