Comparison between patients with impaired and control CVR
| Impaired CVR (n = 8) | Normal CVR (n = 6) | PValue | |
|---|---|---|---|
| LI (mean) | 0.19 | −0.09 | – |
| Age (mean) | 73.38 | 73.67 | .161 |
| Smoking (%) | 5 (62.5) | 5 (83.3) | .393 |
| DM (%) | 1 (12.5) | 2 (33.3) | .347 |
| ICA stenosis (mean) | 81.37 | 76.83 | .238 |
| MAP (mean) | 94.93 | 89.98 | .907 |
| mRS (mean) | 0.63 | 0.83 | .605 |
| CBF index on normal side (mean) | 0.953 | 0.953 | .728 |
| CBF index on lesion side (mean) | 1.090 | 0.989 | .035* |
Note:—CBF index indicates ratio of cerebral blood flow after to that before carotid angioplasty and stenting by MR imaging; –, not applicable; CVR, cerebral vasoreactivity; LI, lateral index; ICA, internal carotid artery.
* P < .05.