Nonlinearity of the Jongkees difference equation for vestibular hypofunction.
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Abstract
The Jongkees formulation for vestibular paresis normalizes the difference between total left and right caloric responses to the sum of responses. When studied over the full paresis range of 0% to 100% hypofunction, the Jongkees formula is found to be a nonlinear index that does not accurately indicate the percentage of vestibular paresis. A linear paresis formula is described that more directly conveys the magnitude of relative vestibular hypofunction.
Medical subject headings
- Caloric Tests
- Vestibule, Labyrinth