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.