Long-term Angiographic and Clinical Outcome Following Stenting by Flow Reversal Technique for Chronic Occlusions Older Than 3 Months of the Cervical Carotid or Vertebral Artery

COs of the cervical carotid or vertebral arteries older than 3 months can be opened safely with FRT, and 1-year angiographic and long-term clinical outcome is favorable.