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Table 4: Index values for growing and stable aneurysms segregated by aneurysm type^{^a}
Bifurcation (n = 16) Sidewall (n = 77)
Max diameter 
    Growing 4.19 ± 1.68 3.93 ± 2.21
    Stable 3.96 ± 2.16 4.18 ± 1.79
Volume 
    Growing 54.8 ± 52.5 122 ± 214
    Stable 51.0 ± 57.1 58.2 ± 114
Surface area 
    Growing 68.9 ± 42.9 113 ± 145
    Stable 62.7 ± 51.8 71.7 ± 73.0
NSI 
    Growing 0.31 ± 0.10 0.39 ± 0.11^{^b,^c}
    Stable 0.22 ± 0.07 0.31 ± 0.12^{^b}
Aspect ratio 
    Growing 1.00 ± 0.33 1.01 ± 0.57
    Stable 1.02 ± 0.32 1.02 ± 0.41
Size ratio 
    Growing 1.71 ± 1.45 1.11 ± 0.77
    Stable 1.37 ± 0.91 1.15 ± 0.62
Note:—Max indicates maximum.
↵a Data are presented as mean ± SD.
↵b Significant difference between groups.
↵c P < .01.

	Bifurcation (n = 16)	Sidewall (n = 77)
Max diameter
Growing	4.19 ± 1.68	3.93 ± 2.21
Stable	3.96 ± 2.16	4.18 ± 1.79
Volume
Growing	54.8 ± 52.5	122 ± 214
Stable	51.0 ± 57.1	58.2 ± 114
Surface area
Growing	68.9 ± 42.9	113 ± 145
Stable	62.7 ± 51.8	71.7 ± 73.0
NSI
Growing	0.31 ± 0.10	0.39 ± 0.11^{^b,^c}
Stable	0.22 ± 0.07	0.31 ± 0.12^{^b}
Aspect ratio
Growing	1.00 ± 0.33	1.01 ± 0.57
Stable	1.02 ± 0.32	1.02 ± 0.41
Size ratio
Growing	1.71 ± 1.45	1.11 ± 0.77
Stable	1.37 ± 0.91	1.15 ± 0.62