videoHeadImpulseTest
The videoHeadImpulseTest, often abbreviated as vHIT, is a diagnostic tool used to assess the function of the vestibular system, specifically the semicircular canals. This non-invasive test involves the patient wearing lightweight, high-speed video goggles that record eye movements. The examiner then performs rapid, small-amplitude head impulses in different directions, covering all six semicircular canals.
During these impulses, the patient is instructed to maintain visual fixation on a target, typically a fixed
The data collected by the vHIT allows clinicians to quantify the VOR gain for each individual canal.