Table 2. Lesion characteristics and procedural details.
| Ruptured aneurysms (n = 25) |
Unruptured aneurysms (n = 104) |
Total (n = 129) |
|
|---|---|---|---|
| Number of patients, n | |||
| With 1 lesion | 25 | 102 | 127 |
| With 2 lesions | 0 | 1 | 1 |
| Rupture status by phase, n (%) | |||
| Ruptured (acute phase: within 14 days prior to the procedure) | 22 (88.0%) | 0 (0.0%) | 22 (17.1%) |
| Ruptured (non-acute phase) | 3 (12.0%) | 0 (0.0%) | 3 (2.3%) |
| Unruptured | 0 (0.0%) | 104 (100.0%) | 104 (80.6%) |
| Previous history of neurosurgical procedures, n (%) | 4 (16.0%) | 2 (1.9%) | 6 (4.7%) |
| Previous history of neurosurgical procedures (categories), n (%) | |||
| Endovascular coil embolization | 4 (16.0%) | 1 (1.0%) | 5 (3.9%) |
| Cerebrovascular surgery (e.g., clipping) | 0 (0.0%) | 1 (1.0%) | 1 (0.8%) |
| Others | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Lesion location (vessel), n (%) | |||
| BA bifurcation (BA top) | 7 (28.0%) | 23 (22.1%) | 30 (23.3%) |
| MCA | 5 (20.0%) | 30 (28.8%) | 35 (27.1%) |
| ACOMA | 6 (24.0%) | 36 (34.6%) | 42(32.6%) |
| ICA bifurcation (ICA top) | 0 (0.0%) | 3 (2.9%) | 3 (2.3%) |
| Others | 7 (28.0%) | 12 (11.5%) | 19 (14.7%) |
| Lesion laterality, n (%) | |||
| Right | 6 (24.0%) | 26 (25.0%) | 32 (24.8%) |
| Left | 6 (24.0%) | 18 (17.3%) | 24 (18.6%) |
| Midline (e.g., BA, ACOMA) | 13 (52.0%) | 60 (57.7%) | 73 (56.6%) |
| Aneurysm height (mm), mean ± SD | 5.32 ± 1.38 | 5.34 ± 1.58 | 5.34 ± 1.54 |
| Maximum aneurysm diameter (mm), mean ± SD | 6.81 ± 2.11 | 6.75 ± 1.96 | 6.77 ± 1.98 |
| Aneurysm dome width (mm), mean ± SD | 4.93 ± 1.58 | 5.59 ± 1.74 | 5.47 ± 1.72 |
| Neck diameter (mm), mean ± SD | 4.19 ± 1.54 | 4.34 ± 1.34 | 4.31 ± 1.38 |
| Dome-to-neck ratio, mean ± SD | 1.25 ± 0.32 | 1.31 ± 0.30 | 1.30 ± 0.31 |
| Technical success (successful device deployment), n (%) | |||
| Success | 25 (100.0%) | 101 (97.1%) | 126 (97.7%) |
| Unsuccess | 0 (0.0%) | 3 (2.9%) | 3 (2.3%) |
| Technical unsuccessful reasons, n (%) | |||
| Adverse event | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Device malfunction | 0 (0.0%) | 0 (0.0%) | 0 (0.0%) |
| Others | 0 (0.0%) | 3 (2.9%) | 3 (2.3%) |
n (%), n represents the number of lesions, and % indicates the proportion relative to the total number of target lesions.
ACOMA, anterior communicating artery; BA, basilar artery; ICA, internal carotid artery; MCA, middle cerebral artery; SD, standard deviation