Table 3.
Change in angiographic scores and parent vessel stenosis with re-treatment.
| Re-treatment group | Angiographic score 3 months after initial flow diversion | Angiographic score at 6 months (3 months following re-treatment) | Change in angiographic score | Parent vessel stenosis at 3 months (%) | Parent vessel stenosis at 6 months (%) | Change in parent vessel stenosis with re-treatment |
|---|---|---|---|---|---|---|
| Repeat flow diversion | 2 | 2 | 0 | 60 | 40 | −20 |
| Repeat flow diversion | 2 | 2 | 0 | 65 | 50 | −15 |
| Repeat flow diversion | 0 | 0 | 0 | 60 | 50 | −10 |
| Repeat flow diversion | 0 | 2 | +2 | 30 | 40 | +10 |
| Repeat flow diversion | 0 | 1 | +1 | 20 | 30 | +10 |
| Repeat flow diversion | 0 | 2 | +2 | 60 | 60 | 0 |
| Repeat flow diversion + LEA | 1 | 2a | +1 | 50 | 100a | +50 |
| Repeat flow diversion + LEA | 0 | 2 | +2 | 10 | 20 | +10 |
| Repeat flow diversion + LEA | 0 | 2a | +2 | 0 | 100a | +100 |
| Repeat flow diversion + LEA | 1 | 1 | 0 | 60 | 50 | −10 |
| Control | 2 | 2 | 0 | 10 | 10 | 0 |
| Control | 1 | 1 | 0 | 10 | 10 | 0 |
| Median (IQR) | 0.5 (0–1.25) | 2 (1–2) | 40 (10–60) | 45 (27.5–52.5) |
a
Parent vessel completely occluded.
LEA: liquid embolic agent; IQR: interquartile range.