Objectives: To explore the diagnostic value of ENG, BAEP and TCD in patients with vertibrobasilar insufficiency(VBI).

• 目的：探讨眼震电图（ENG）、脑干听觉诱发电位（BAEP）及脑超声波（TCD）三项检查联合用于椎基底动脉供血不足（VBI）的诊断价值。