Relationship between each parameter and subarachnoid hyperattenuation on FPD-based CBCT immediately after coil embolization
| Parameter | Subarachnoid Hyperattenuation | P Value | |
|---|---|---|---|
| + | − | ||
| Location of aneurysm | |||
| ICA | 4 | 19 | .0728 |
| MCA | 0 | 2 | |
| AcomA | 3 | 3 | |
| ACA | 2 | 0 | |
| VB | 0 | 3 | |
| Size of aneurysm (mm) | |||
| <5 | 0 | 12 | <.05 |
| 5–10 | 4 | 13 | |
| 10–15 | 1 | 0 | |
| ≥15 | 4 | 2 | |
| Amount of contrast medium (mL) | |||
| <150 | 0 | 17 | <.001 |
| 150–250 | 4 | 8 | |
| ≥250 | 5 | 2 | |
| Balloon assistance | |||
| Performed | 3 | 12 | .567 |
| Not performed | 6 | 15 | |
| Stent assistance | |||
| Performed | 4 | 5 | .150 |
| Not performed | 5 | 22 | |
Note:—+ indicates presence; −, absence.