Hemodynamic characteristics of the aneurysm models before and after rupturea
| Pt | Location | Flow Complexity | Flow Stability | Inflow Concentration | Flow Impingement | Geometric Changes | |
|---|---|---|---|---|---|---|---|
| Region | Size | ||||||
| 1 | Basilar | C-C | U-U | C-C | D-D | S-S | Noneb |
| 2 | AcomA | C-C | U-U | C-C | D-Bc | S-S | Aneurysm displacement (8.9 mm) |
| 3 | PcomA | S-Cc | S-Uc | D-D | N-N | S-S | Growth (79%); 1 new lobulation |
| 4 | MCA | C-C | U-U | C-C | ND-ND | S-S | Aneurysm displacement (5.8 mm) |
| 5 | MCA | C-C | S-S | D-Cc | ND-ND | S-S | Growth (176%) |
| 6 | Basilar | C-C | U-U | D-D | D-D | L-L | Noneb |
| 7 | PcomA | S-Cc | U-U | C-Dc | N-NBc | S-S | Growth (832%); 1 new lobulation |
| 8 | Anterior choroidal | C-C | S-Uc | C-C | NB-Nc | S-S | Growth (70%) |
| 9 | Basilar | S-Cc | S-Uc | C-C | BD-BD | L-L | 1 New lobulation |
Note:—AcomA indicates anterior communicating artery; PcomA, posterior communicating artery.
↵a Flow complexity was characterized as simple (S) or complex (C); flow stability, as stable (S) or unstable (U); inflow concentration as diffuse (D) or concentrated (C); region of flow impingement, as dome (D), body (B), or neck (N); and size of the impingement zone, as small (S) or large (L).
↵b Aneurysm displacement of ≤0.6 mm or not related to mass effect from hematoma; aneurysm growth of ≤40%.
↵c Changed after rupture.