Comparison of two systems for the video head impulse test (vHIT) for the lateral semicircular canal: description of results from normal and pathological subjects

ABSTRACT Background: The video head impulse test (vHIT) is a recent technique for functional evaluation of semicircular canals (SSCs). vHIT examines eye movements at high frequencies stimulation and provides an objective assessment the functioning high-frequency domain vestibular system. Objective: To describe results from performed using two systems. Methods: All subjects were evaluated through audiological otoneurological battery tests diagnosed as normal or abnormal by otorhinolaryngologist. systems: 1. ICS Impulse (Otometrics/Natus, Denmark) 2. EyeSeeCam (InterAcoustics, recorded. same operator delivered every to subject. impulses while was standing behind subject, both hands on top subject’s head, well away goggles strap forehead skin. Two calibrations completed in each system, prior beginning test. Results: Test parameters recorded systems healthy with no history complaint any disorder (N = 12; M/F 5/7; age 35.1 ± 13.5 y) pathological diagnosis unilateral bilateral 15; 7/8; 53.4 16.7 y). Conclusions: important tool complementary evaluation. Both are reliable disorders. seems reject fewer data more information include diagnostics. Because small sample, there need further in-depth comparison