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Table 2: Aneurysm parameters: correlation of group 1 and group 2 and 3 aneurysms^{^a}
Parameters Total Accordant Contralateral Undefined
(Group 1) (Group 2) P Value (Group 3) P Value
MD 5.2 ± 2.4 5.3 ± 2.1 5.6 ± 2.5 .570 (NS) 4.6 ± 1.4 .823 (NS)
ND 4.1 ± 1.7 4.2 ± 1.7 4.3 ± 1.7 .891 (NS) 3.7 ± 1.7 .372 (NS)
MD/ND ratio 1.3 ± 0.5 1.3 ± 0.4 1.3 ± 0.3 .608 (NS) 1.4 ± 0.8 .616 (NS)
Maximum perpendicular height 4.1 ± 1.3 4.0 ± 1.4 4.2 ± 1.2 .583 (NS) 4.1 ± 1.3 .911 (NS)
Aspect ratio 1.1 ± 0.5 1.0 ± 0.3 1.0 ± 0.4 .91 (NS) 1.3 ± 0.7 .344 (NS)
Maximum height 4.3 ± 1.4 4.3 ± 1.4 4.4 ± 1.3 .826 (NS) 4.2 ± 1.4 .824 (NS)
Size ratio 1.6 ± 0.6 1.7 ± 0.7 1.4 ± 0.4 .360 (NS) 1.6 ± 0.5 .922 (NS)
Angle of neck section to imaging section 52.1 ± 21.8 47.8 ± 22.9 52.9 ± 10.0 .375 (NS) 64.0 ± 20.8 .045 (S)
Maximum inflow velocity 577 ± 164 604 ± 169 449 ± 159 .029 (S) 583 ± 136 .721 (NS)
MRA signal intensity 355 ± 69.0 356 ± 64.6 348 ± 56.8 .752 (NS) 356 ± 91.6 .955 (NS)
Note:—NS indicates not significant by the comparison test adjusted for the P value threshold for each parameter; MD, maximum diameter; ND, neck diameter.
↵a Data are means.