TABLE 1:

Summary of patient characteristics

CharacteristicValue
Patients23
Age (y)72.7 ± 7.6 (51–90)
Male-to-female ratio15:8
Race
    Caucasian14
    African American3
    Asian/Pacific Islander6
Vascular territory
    Carotid20
    Vertebrobasilar3
Degree of stenosis (%)70 ± 13 (40–99)
Symptomatic lesions15
Time between measurements (min)39 ± 12 (13–60)
Anesthetic management
    General, endotracheal intubation9
    Monitored sedation14

  • Note.—Data are the number or mean ± SD (range).