Occlusion rates of treated aneurysms intraoperatively and at most recent follow-up
| No. (%), Mean (SD) | |
|---|---|
| Mean duration of procedure (min)a | 88.0 (47.9) |
| Immediate occlusionb | |
| 100% | 212 (29.2) |
| >90% | 185 (25.5) |
| <90% | 328 (45.2) |
| Contrast stasis in nonoccluded aneurysmsc | 485 (90.3) |
| Mean duration to last follow-up (mo) | 17.7 (20.3) |
| Technique of last follow-upd | |
| DSA | 206 (27.3) |
| MRA | 376 (49.9) |
| CTA | 131 (17.4) |
| MRA/DSA | 9 (1.2) |
| CTA/DSA | 5 (0.7) |
| MRA/CTA | 27 (3.6) |
| Occlusion at last follow-upe | |
| Complete | 497 (71.5) |
| Near-complete occlusion | 139 (20) |
| Aneurysm residual | 59 (8.5) |
| Complete occlusion | 497 (65.1) |
| Retreatment | 56 (7.3) |
Note:—Data missing for a = 113, b = 37, c = 68, d = 9, e = 68.