Table 8B.
Comparison of aneurysms with <90% vs. 90-100% occlusion rate with respect to their anatomic location, irrespective of the type of coils used
| occl. rate < 90% | occl. rate > 90% | p-value* | ||||
|---|---|---|---|---|---|---|
| n | (%) | n | (%) | |||
| 1 ICA petrous segment | 1 | 25.0 | 3 | 75.0 | 0.424 | |
| 2 ICA cavernous segment | 20 | 27.8 | 52 | 72.2 | 0.000 | |
| 3 Superior hypophyseal artery | 7 | 17.5 | 33 | 82.5 | 0.344 | |
| 4 ICA ophthalmic segment | 29 | 20.6 | 112 | 79.4 | 0.009 | |
| 5 ICA PcomA | 20 | 9.0 | 202 | 91.0 | 0.071 | |
| 6 ICA supra- / paraclinoidal | 3 | 11.5 | 23 | 88.5 | 1.000 | |
| 7 ICA AchoA | 1 | 2.4 | 40 | 97.6 | 0.054 | |
| 8 ICA bifurcation | 6 | 9.7 | 56 | 90.3 | 0.565 | |
| 9 Proximal MCA (M1-segment) | 2 | 5.7 | 33 | 94.3 | 0.306 | |
| 10 MCA bifurcation | 37 | 14.2 | 224 | 85.8 | 0.489 | |
| 11 Distal MCA (M2-segment) | 1 | 8.3 | 11 | 91.7 | 1.000 | |
| 12 Proximal ACA (A1-segment) | 5 | 22.7 | 17 | 77.3 | 0.190 | |
| 13 AcomA | 43 | 10.8 | 354 | 89.2 | 0.182 | |
| 14 Distal ACA | 5 | 11.1 | 40 | 88.9 | 1.000 | |
| 15 Vertebral artery | 6 | 12.0 | 44 | 88.0 | 1.000 | |
| 16 Vertebro-basilar junction | 5 | 16.7 | 25 | 83.3 | 0.579 | |
| 17 PICA | 8 | 10.3 | 70 | 89.7 | 0.605 | |
| 18 AICA | 1 | 20.0 | 4 | 80.0 | 0.498 | |
| 19 Superior cerebellar artery | 8 | 9.8 | 74 | 90.2 | 0.500 | |
| 20 Basilar trunk | 9 | 20.9 | 34 | 79.1 | 0.110 | |
| 21 Basilar tip | 38 | 13.5 | 243 | 86.5 | 0.792 | |
| 22 Proximal PCA (P1-segment) | 3 | 7.5 | 37 | 92.5 | 0.472 | |
| 23 Distal PCA (P2-segment) | 2 | 6.7 | 28 | 93.3 | 0.417 | |
| Total | 260 | 12.9 | 1759 | 87.1 | - | |
| *p-values of Fischer's Exact -Test | ||||||