Characteristics of 345 intracranial aneurysms treated with endovascular coil embolization
| Characteristic | N (%) |
|---|---|
| Patient data | |
| Total patients | 326 |
| Total aneurysms | 345 |
| Age (years) | 56.9* |
| Female | 271 (83.1) |
| History of smoking | 184 (56.4) |
| History of hypertension | 160 (49.1) |
| History of other intracranial aneurysm(s) | 104 (31.9) |
| History of subarachnoid hemorrhage from other intracranial aneurysm(s) | 10 (3.1) |
| Family history of intracranial aneurysm(s) | 61 (18.7) |
| Aneurysm data | |
| Size | |
| Small (<10 mm) | 283 (82.0) |
| Large (10–25 mm) | 59 (17.1) |
| Giant (>25 mm) | 3 (0.9) |
| Location | |
| Cavernous ICA | 14 (4.1) |
| SHA | 57 (16.5) |
| OphA | 59 (17.1) |
| Dorsal ICA | 8 (2.3) |
| PcoA | 38 (11.0) |
| AchA | 7 (2.0) |
| ICA terminus | 16 (4.6) |
| AcoA | 59 (17.1) |
| Pericallosal | 6 (1.7) |
| ATA | 2 (0.6) |
| MCA bifurcation | 8 (2.3) |
| VA | 3 (0.9) |
| PICA | 6 (1.7) |
| AICA | 1 (0.3) |
| SCA | 7 (2.0) |
| PCA | 5 (1.4) |
| BA trunk | 3 (0.9) |
| BA apex | 46 (13.3) |
| Shape | |
| Spherical | 51 (14.8) |
| Ellipsoid | 270 (78.2) |
| Bilobed | 24 (7.0) |
| Volume (mm3) | 72.8* |
| Neck size (mm) | 3.1* |
| Aspect ratio | 2.1* |
| Blebs or dome irregularities | 119 (34.5) |
| Intraluminal thrombus | 31 (9.0) |
| Ruptured | 97 (28.1) |
| Procedural data | |
| Coil embolization | |
| Stand-alone | 257 (74.5) |
| Stent assistance | 43 (12.5) |
| Balloon assistance | 47 (13.6) |
| Packing density (%) | 32.3*† |
| Intraprocedural rupture | 8 (2.3) |
*Median.
†Information available on only 320 patients.
AchA, anterior choroidal artery; AcoA, anterior communicating artery; AICA, anterior inferior cerebellar artery; ATA, anterior temporal artery; BA, basilar artery; ICA, internal carotid artery; MCA, middle cerebral artery; OphA, ophthalmic artery; PCA, posterior cerebral artery; PcoA, posterior communicating artery; PICA, posterior inferior cerebellar artery; SCA, superior cerebellar artery; SHA, superior hypophyseal artery; VA, vertebral artery.