Estimating loss of canal function in the video head impulse test (vHIT).

CONCLUSIONS: The sum of right and left VOR gains (or 2 times the mean of VOR gains) at a given head velocity is an estimate of the total function of the involved canals. This simple formula can estimate the loss of canal function in purely unilateral lesions. For bilateral lesions, the same formula can estimate the total loss of bilateral function but contributions from individual canals cannot be determined without additional information. PMID: 31868701 [PubMed - as supplied by publisher]
Source: Journal of Vestibular Research: Equilibrium and Orientation - Category: Neuroscience Tags: J Vestib Res Source Type: research