Table 1.

Summary of the Patients and Results

Abbreviations: TIA, transient ischemic attack; V4, the intradural vertebral artery segment; Cav ICA, the cavernous internal carotid artery; FU, follow-up; Angio, cerebral catheter angiogram; TCD, transcranial Doppler ultrasound; CTA, computed tomographic angiography; CTAP, CTA with perfusion; MRA, magnetic resonance imaging; MRAP, MRA with perfusion; NA, not available; mRS, modified Rankin Score

^*: sudden cardiac death without any neurologic deficit during the follow-up period