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DWI high-intensity lesions after CAS.
| Lesions of DWI high intensity | Patients with a visible OA–VA anastomosis (n=6*) | Patients without a visible OA–VA anastomosis (n=39*) |
|---|---|---|
| Anterior circulation | 1 | 8 |
| Posterior circulation | 1 | 2 |
| Total | 2 (33.3%) | 10 (25.6%) |
OA: occipital artery; VA: vertebral artery; DWI: diffusion-weighted imaging; CAS: carotid artery stenting.
Magnetic resonance imaging was not obtained in each patient in both groups because of pacemaker implantation.
