Table 3. Factors associated with residual perfusion or failure of coil embolotherapy.
| Large feeding artery diameter |
| Smaller numbers of coils |
| Oversized coils |
| Lack of dense packing |
| Proximal embolization >1 cm from the sac |
| Large feeding artery diameter |
| Smaller numbers of coils |
| Oversized coils |
| Lack of dense packing |
| Proximal embolization >1 cm from the sac |