Localizations of the aneurysms and the sensitivity of the softwarea
| Localization | No. (%) | Correctly Detected by CNN | % |
|---|---|---|---|
| Anterior circulation | 39 (72.2%) | 27 | 69.23% |
| C1–C4 (infraophthalmic) | 12 (22.2%) | 6 | 50.0% |
| Supraophthalmic | 27 (50%) | 21 | 77.8% |
| C5/6 | 7 (13.0%) | 5 | 71.4% |
| ICA terminus | 1 (1.9%) | 1 | 100.0% |
| AComA | 7 (13.0%) | 6 | 85.7% |
| MCA | 11 (20.4%) | 8 | 72.7% |
| A1 | 1 (1.9%) | 1 | 100.0% |
| Posterior circulation | 15 (27.8%) | 11 | 73.3% |
| Basilar tip | 1 (1.9%) | 1 | 100.0% |
| PComA | 8 (14.8%) | 7 | 87.5% |
| SCA | 2 (3.7%) | 1 | 50.0% |
| AICA | 0 (0.0%) | 0 | NA |
| PICA | 1 (1.9%) | 1 | 100.0% |
| V4 | 1 (1.9%) | 1 | 100.0% |
| Basilar artery | 2 (3.7%) | 0 | 0.0% |
Note:—AComA indicates anterior communicating artery; PComA, posterior communicating artery; SCA, superior cerebellar artery; NA, not applicable; CNN, convolutional neural network.
↵a The specificity of the algorithm was 87.2%. The term “basilar artery” indicates aneurysms of the basilar artery that do not arise from the basilar tip, the SCA, or the AICA. C5/6 includes ICA aneurysms that are located in the ICA segments C5 or C6. Aneurysms located at the ICA terminus or the origin of the PComA are listed separately.