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. 2006 Oct;27(9):1834–1840.

Table 7:

Angiographic occlusion classification: aneurysm comparison between immediate and last angiographic follow-up

Aneurysm Size Class (%)
Improved Unchanged Worse
Overall 53 15 (28) 31 (58) 7 (13)
S/S 23 8 150 0
S/W 7 0 4 3
Large 22 7 12 3
Giant 1 0 0 1
Immediate aneurysm result Unchanged Improved Worse
Class 1 10 9 (90) 1 (10)
Class 2 23 14 (61) 3 (13) 6 (26)
Class 3 20 8 (40) 12 (60) 0 (0)
Overall 53 31 (58) 15 (28) 7 (13)

Note:—Classification is based on Roy et al7. S/S indicates small size (<10 mm)/narrow-necked (<4 mm); S/W, small size/wide-necked (>4 mm); Large, >10–25 mm; Giant, >25 mm.

* For all classes included, the last follow-up averaged 10.3 mo.