Table 8C.
Comparison of aneurysms with and without coil compaction as defined by angiographic follow-up with respect to their anatomic location, irrespective of the type of coils used
| no compaction | compaction | p-value* | ||||
|---|---|---|---|---|---|---|
| n | (%) | n | (%) | |||
| 1 ICA petrous segment | 3 | 100.0 | 0 | 0.0 | 0.574 | |
| 2 ICA cavernous segment | 27 | 64.3 | 15 | 35.7 | 0.158 | |
| 3 Superior hypophyseal artery | 22 | 95.7 | 1 | 4.3 | 0.015 | |
| 4 ICA ophthalmic segment | 52 | 66.7 | 26 | 33.3 | 0.138 | |
| 5 ICA PcomA | 92 | 78.6 | 25 | 21.4 | 0.264 | |
| 6 ICA supra- / paraclinoidal | 11 | 68.8 | 5 | 31.3 | 0.779 | |
| 7 ICA AchoA | 14 | 58.3 | 10 | 41.7 | 0.095 | |
| 8 ICA bifurcation | 25 | 75.8 | 8 | 24.2 | 1.000 | |
| 9 Proximal MCA (Ml-segment) | 18 | 90.0 | 2 | 10.0 | 0.125 | |
| 10 MCA bifurcation | 92 | 71.9 | 36 | 28.1 | 0.518 | |
| 11 Distal MCA (M2-segment) | 3 | 100.0 | 0 | 0.0 | 0.574 | |
| 12 Proximal ACA (A1-segment) | 7 | 63.6 | 4 | 36.4 | 0.487 | |
| 13 AcomA | 143 | 73.7 | 51 | 26.3 | 0.856 | |
| 14 Distal ACA | 10 | 52.6 | 9 | 47.4 | 0.059 | |
| 15 Vertebral artery | 12 | 80.0 | 3 | 20.0 | 0.771 | |
| 16 Vertebro-basilar junction | 13 | 68.4 | 6 | 31.6 | 0.597 | |
| 17 PICA | 37 | 92.5 | 3 | 7.5 | 0.005 | |
| 18 AICA | 2 | 66.7 | 1 | 33.3 | 1.000 | |
| 19 Superior cerebellar artery | 35 | 77.8 | 10 | 22.2 | 0.728 | |
| 20 Basilar trunk | 17 | 63.0 | 10 | 37.0 | 0.183 | |
| 21 Basilar tip | 110 | 73.3 | 40 | 26.7 | 0.763 | |
| 22 Proximal PCA (P1-segment) | 20 | 95.2 | 1 | 4.8 | 0.023 | |
| 23 Distal PCA (P2-segment) | 10 | 76.9 | 3 | 23.1 | 1.000 | |
| Total | 775 | 74.2 | 269 | 25.8 | - | |
| *p-values of Fischer's Exact -Test | ||||||