Effects of Cross-Sectional Area of the Cochlear Fluid Duct on Cochlear Input Impedance

抄録

The effects of the cross-sectional area of the cochlear fluid duct on cochlear input impedance were studied using a three-dimensional finite-element model. The model consists of a middle ear and a cochlea. Two different types of cochlea were used in the model: 1) a tapered box cochlea and 2) a coiled cochlea. The cochlear input impedances of the two cochlear models were compared while varying several properties, such as fluid compressibility, round window density, and the cross-sectional area of the cochlear fluid duct. The results showed that the cross-sectional area of the cochlear fluid duct was the most significant factor in determining the cochlear input impedance.