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TABLE 1: Aneurysms treated with 3D spherical coils in eight interventional neuroradiology centers
Aneurysm Group A Group B Total
Ruptured 80 (69) 22 (50) 102 (64)
Unruptured 36 (31) 22 (50) 58 (36)
 Total 116 44 160
Note.— Group A included aneurysms with a neck ≤4 mm, and group B, aneurysms with a neck >4 mm.
Data are number (%) of aneurysms.
Aneurysm	Group A	Group B	Total
Ruptured	80 (69)	22 (50)	102 (64)
Unruptured	36 (31)	22 (50)	58 (36)
Total	116	44	160