Data on endovascular rescue therapy and radiological follow-up
| Compliant balloon | Non-compliant balloon | P-value | |
| No. of treated vessel segments | 23 | 7 | |
| Localisation | 0.194 | ||
| ICA | 3 (0.13) | 3 (0.43) | |
| ACA | 7 (0.30) | 0 (0.00) | |
| MCA | 11 (0.48) | 3 (0.43) | |
| VAS | 2 (0.09) | 1 (0.14) | |
| Median radiological follow-up (range) (in months) | 11 (5–26) | 10 (7–28) | 0.701 |
| Imaging modalities | 0.532 | ||
| Catheter angiography | 18 (0.78) | 5 (0.71) | |
| TOF MRA | 5 (0.22) | 2 (0.29) | |
| Arterial narrowing in radiological follow-up | 0.677 | ||
| Mild | 3 (0.13) | 1 (0.14) | |
| Moderate or severe | 0 (0.00) | 0 (0.00) |
ACA, anterior cerebral artery; ICA, internal carotid artery; MCA, middle cerebral artery; TOF MRA, time-of-flight magnetic resonance angiography; VAS, vertebrobasilar arterial system.