Table 2.
The overview of the characteristics of each dataset.
| Characteristic | Training set | Validation set | Test set | Total |
|---|---|---|---|---|
| No. of patients, n | 1,606 | 314 | 352 | 2,272 |
| No. of IAs, n | 2,078 | 414 | 446 | 2,938 |
| CTA with single IA, n | 1,233 | 237 | 283 | 1,753 |
| CTA with multiple IAs, n | 373 | 77 | 69 | 519 |
| Female, n (%) | 1,008 (62.8) | 183 (58.3) | 216 (61.4) | 1,407 (61.9) |
| Age, years | 56 ± 10 | 57 ± 12 | 55 ± 10 | 56 ± 11 |
| Male | 56 ± 11 | 57 ± 11 | 53 ± 10 | 56 ± 11 |
| Female | 57 ± 10 | 57 ± 12 | 56 ± 10 | 57 ± 10 |
| Aneurysm size, mm | 4.2 ± 3.4 | 3.6 ± 2.5 | 6.0 ± 4.6 | 4.4 ± 3.6 |
| <3 mm, n (%) | 880 (42.3) | 209 (50.5) | 94 (21.1) | 1,183 (40.3) |
| 3–7 mm, n (%) | 982 (47.3) | 174 (42) | 242 (54.3) | 1,398 (47.6) |
| >7 mm, n (%) | 216 (10.4) | 31 (7.5) | 110 (24.7) | 357 (12.2) |
| Aneurysm's location | ||||
| ICA, n (%) | 1,344 (64.7) | 258 (62.3) | 171 (38.3) | 1,773 (60.3) |
| ACA, n (%) | 98 (4.7) | 21 (5.1) | 30 (6.7) | 149 (5.1) |
| ACoA, n (%) | 143 (6.9) | 23 (5.6) | 65 (14.6) | 231 (7.9) |
| MCA, n (%) | 299 (14.4) | 65 (15.7) | 136 (30.5) | 500 (17) |
| PCA, n (%) | 50 (2.4) | 7 (1.7) | 6 (1.3) | 63 (2.1) |
| PCoA, n (%) | 13 (0.6) | 2 (0.5) | 10 (2.2) | 25 (0.9) |
| BA, n (%) | 66 (3.2) | 20 (4.8) | 11 (2.5) | 97 (3.3) |
| VA, n (%) | 53 (2.6) | 17 (4.1) | 14 (3.1) | 84 (2.9) |
| Other, n (%) | 12 (0.6) | 1 (0.2) | 3 (0.7) | 16 (0.5) |
| Scanners | ||||
| GE healthcare, n (%) | 1,601 (99.7) | 314 (100) | 352 (100) | 2,267 (99.8) |
| Philips scanners, n (%) | 5 (0.3) | 0 (0) | 0 (0) | 5 (0.2) |
ICA, internal carotid artery; ACA, anterior cerebral artery; ACoA, anterior communicating artery; MCA, middle cerebral artery; PCA, posterior cerebral artery; PCoA, posterior communicating artery; BA, basilar artery; VA, vertebral artery.