Occlusion status (Raymond–Roy occlusion classification and WEB Occlusion Scale) shift for patients with 1 year imaging follow-up (n=140): 82 patients had both 1 year and 5 year imaging follow-up
| RROC | 1 year | 5 years | |||||||
| 1 (WOS A-B) | 2 (WOS C) | 3 (WOS D) | Retreated (w/5 year image) | No image | Reason for no image | ||||
| Early exit | COVID related | Other | |||||||
| 1 (WOS A-B) | 81 | 43 | 4 | 0 | 2 | 32 | 8 | 13 | 11 |
| 2 (WOS C) | 44 | 6 | 11 | 0 | 8 | 19 | 9 | 7 | 3 |
| 3 (WOS D) | 15 | 0 | 2 | 1 | 5 | 7 | 2 | 4 | 1 |
| Total | 140 | 49 | 17 | 1 | 15 | 58 | 19 | 24 | 15 |
| 82 | |||||||||
RROC, Raymond–Roy occlusion classification; WEB, Woven EndoBridge; WOS, WEB Occlusion Scale.