CTA findings in 29 patients with carotid blowout syndrome
| Imaging Finding | All CTA | First CTA | Second CTA |
|---|---|---|---|
| Necrosis | |||
| Percentage (ratio) | 94% (31/33) | 93% (27/29) | 100% (4/4) |
| 95% CI | 0.79–0.99 | 0.77–0.99 | 0.54–1.00 |
| Viable perivascular tumor | |||
| Percentage (ratio) | 67% (22/33) | 66% (19/29) | 75% (3/4) |
| 95% CI | 0.50–0.80 | 0.47–0.80 | 0.29–0.97 |
| Pseudoaneurysm | |||
| Percentage (ratio) | 58% (19/33) | 59% (17/29) | 50% (2/4) |
| 95% CI | 0.41–0.73 | 0.40–0.75 | 0.15–0.85 |
| Contrast extravasation | |||
| Percentage (ratio) | 30% (10/33) | 24% (7/29) | 75% (3/4) |
| 95% CI | 0.17–0.47 | 0.12–0.42 | 0.29–0.97 |
| Exposed artery | |||
| Percentage (ratio) | 73% (24/33) | 69% (20/29) | 100% (4/4) |
| 95% CI | 0.56–0.85 | 0.51–0.83 | 0.54–1.00 |