The relation between size and complete occlusion (aneurysms number=967)
| Aneurysm size | Total | PED alone | PED coils | P value |
| ≤7 mm | 258/316 (81.6) | 182/230 (79.1) | 76/86 (88.4) | 0.059 |
| ≤15 mm to >7 mm | 300/365 (82.2) | 125/168 (74.7) | 175/197 (88.8) | <0.0001 |
| >15 mm | 231/286 (83.7) | 75/98 (76.5) | 156/188 (83.0) | 0.189 |
| >15 mm (saccular) | 162/196 (82.7) | 43/59 (72.9) | 119/137 (86.9) | 0.018 |
| >15 mm (non-saccular) | 69/90 (76.7) | 32/39 (82.1) | 37/51 (72.5) | 0.291 |
Bold values: p value <0.05.
n (%); p value: χ2 test.
A total of 858 patients with 967 aneurysms underwent angiography follow-up.
PED, Pipeline embolisation device.