Development of methodological approaches to assess the functional state of the inner ear labyrinth

Abstract

Modeling the propagation of sound vibrations from the foot plate of the stirrup in the oval window to the perceiving formations of the organ of Corti is a difficult experimental problem. In the search for the causes of hearing loss, tone threshold audiometry has traditionally been considered as the basis of diagnosis. The presence of an air-bone gap on an audiogram was associated with a dysfunction of the middle ear; however, in many cases, an air-bone gap is detected when the pathology is localized in the structures of the inner ear. The review shows that pathological conditions that impair intracochlear sound conduction are successfully detected using computed tomography of the temporal bones. The classification of pathological conditions of the labyrinth, giving the bone-air gap on the tone threshold audiogram, was performed.