Aneurysm characteristics
| All Unruptured Aneurysms | Wide-Neck Aneurysms | |||||
|---|---|---|---|---|---|---|
| Stent-Coil (n = 137) | Coil Alone (n = 224) | P Value | Stent-Coil (n = 85) | Coil Alone (n = 73) | P Value | |
| Maximum dimension | 7.6 | 7.8 | .46 | 8.9 | 10.1 | .007 |
| Height is max | 43.8% | 54.9% | .04 | 42.4% | 50.7% | .30 |
| Width is max | 29.9% | 21.4% | .07 | 30.6% | 23.3% | .30 |
| Depth is max | 26.3% | 23.7% | .58 | 27.1% | 26.0% | .88 |
| Max dimension >10 mm | 19.7% | 21.0% | .77 | 30.6% | 47.9% | .03 |
| Neck ≥4 mm | 62.0% | 32.6% | <.0001 | 100% | 100% | NA |
| Average neck | 4.7 | 3.5 | <.0001 | 5.6 | 5.0 | .004 |
| Dome/neck radio | 1.3 | 1.8 | <.0001 | 1.2 | 1.6 | <.0001 |
| Dome/parent artery ratio | 2.0 | 2.1 | .33 | 2.2 | 2.6 | .01 |
| Circle of Willis location | 44.5% | 64.7% | .0002 | 48.2% | 72.6% | .002 |
Note:—Max indicates maximum.