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Table 3: Type of aneurysm occlusion and recanalization on follow-up DSA, the timing of retreatment and rupture, and the type of recanalization immediately before retreatment and rupture in the unruptured group^{^a}
Initial (n = 38) (n = 38) 6 Months (n = 36) (n = 38) 1 Year (n = 16) (n = 37) 2 Years (n = 3) (n = 35) 3 Years (n = 0) (n = 26) 4 Years (n = 0) (n = 26) 5 Years (n = 1) (n = 23) 6 Years (n = 1) (n = 22) 7 Years (n = 0) (n = 16) 8 Years (n = 1) (n = 13)
Type of aneurysm occlusion and recanalization
 I 5 2 0 0 0 0 0 0 0 0
 II 10 4 1 0 0 0 0 0 0 0
 IIIa 12 13 9 1 0 0 0 1 0 0
 IIIb 11 17 6 2 0 0 1 0 0 1
Type of recanalization of retreated recanalized aneurysms
 IIIa 0 1 3 0 0 0 0 1 0 0
 IIIb 0 8 2 1 0 0 1 0 0 1
Type of recanalization of ruptured recanalized aneurysms
 IIIa 0 0 0 0 0 0 0 0 0 0
 IIIb 1 1 1 0 0 0 0 1 0 0
↵a The first row of numbers in parentheses indicates the number of cases that underwent follow-up DSA at that time; the second row of numbers in parentheses, the number of cases that underwent follow-up MRA at that time.