Classifications proposed by various authors to assess outcomes of coiling
| Articles | Classification | Classes | Dichotomy Possible? |
|---|---|---|---|
| Proposed for DSA | |||
| Raymond (1997)19 | Complete | 4 | Y |
| Dog ear | |||
| Residual neck | |||
| Residual aneurysm | |||
| Cognard (1999)20 | 100% | 3 | Y |
| 95–99% | |||
| < 95% | |||
| Roy (2001)12 | Complete | 3 | Y |
| Residual neck | |||
| Residual aneurysm | |||
| Johnston (2008)21 | 100% = complete | 5 | No |
| 91–99% = small residual neck | (yes?) | ||
| 70–90% = residual neck | |||
| 1–69% = partial occlusion | |||
| 0% = not occluded | |||
| Meyers (2010)22 | ≥90% | 5 | Y |
| 70–89% | |||
| 50–69% | |||
| 25–49% | |||
| <25% | |||
| CLARITY (2010)23 | A = complete occlusion | 5 | N |
| B = subtotal occlusion with | |||
| B1 complete neck coverage but contrast in coil mesh | |||
| B2 incomplete neck coverage but no contrast in coil mesh | |||
| B3 incomplete neck coverage and contrast in coil mesh | |||
| C = incomplete occlusion = aneurysm remnant | |||
| Proposed for MRA | |||
| Gönner (1998)24 | Complete | 2 | Y |
| Anzalone (2000)25 | Residual flow | ||
| Yamada (2004)26 | |||
| Boulin (2001)27 | 100% | 3 | Y |
| 95–99% | |||
| <95% | |||
| Kahara (1999)28 | No remnant | 2 | Y |
| Remnant if cavity >1 mm (neck or body) | |||
| Leclerc (2002)29 | Complete | 4 | N |
| Small residual neck (1–3 mm) | |||
| Large residual neck(>3 mm) | |||
| Not assessable | |||
| Costalat (2006)30 | Complete | 3 | Y |
| Gauvrit (2006)31 | Residual neck | ||
| Residual aneurysm | |||
| Cottier (2003)32 | Complete | 4 | N |
| Remnant size <3 mm | |||
| Remnant size 4–5 mm | |||
| Remnant size >5 mm | |||
| Majoie (2005)33 | Remnant | 3 | N |
| Recurrence | |||
| Occlusion | |||
| Sprengers (2008)34 | Adequate occlusion | 2 | Y |
| Reopening |