CTA Study of Ruptured Aneurysms of the Posterior Communicating Artery
Table 2
Statistical analysis between the aneurysm and control groups.
Parameter
Groups
Range (mm)
Mean (mm)
Intradural ICA diameter at origin
AN (63)
2-6.5
0.0293
Control (63)
2.5-5.7
ICA diameter at termination
AN (63)
2.2-6.2
0.0024
Control (63)
2.0-4.7
MCA diameter at origin
AN (63)
1.0-3.9
0.4441
Control (63)
1.6-3.9
PcomA diameter at origin
AN (41)
0.3-4.4
0.2815
Control (40)
0.5-4.2
PcomA diameter at termination
AN (41)
0.4-3.2
0.3739
Control (40)
0.3-2.6
P2 diameter at origin
AN (41)
0.4-3.2
0.9862
Control (40)
0.4-3.1
P1 diameter at termination
AN (41)
0-2.3
0.6303
Control (40)
0-2.6
Intradural ICA length
AN (63)
11-34.7
0.0089
Control (63)
11.5-28.7
PcomA length
AN (41)
1.7-26.6
0.2311
Control (40)
9.3-19.4
Angle between ICA and PcomA
AN (41)
9.8-146.5
0.0045
Control (40)
27.6-172.5
In this table, a paired test was used for the following parameters: intradural ICA diameter at the origin, ICA diameter at the termination, MCA diameter at the origin and intradural ICA length. An unpaired test was used for other parameters. Abbreviations: AN: aneurysm; ICA: internal carotid artery; MCA: middle cerebral artery; P1: first segment of the posterior cerebral artery; P2: second segment of the posterior cerebral artery; PcomA: posterior communicating artery.
