The effects of varying tympanic-membrane material properties on human middle-ear sound transmission in a three-dimensional finite-element model.

ABSTRACT: An anatomically based three-dimensional finite-element human middle-ear (ME) model is used to test the sensitivity of ME sound transmission to tympanic-membrane (TM) material properties. The baseline properties produce responses comparable to published measurements of ear-canal input impedance and power reflectance, stapes velocity normalized by ear-canal pressure (P_EC), and middle-ear pressure gain (MEG), i.e., cochlear-vestibule pressure (P_V) normalized by P_EC. The mass, Young's modulus (E_TM), and shear modulus (G_TM) of the TM are varied, independently and in combination, over a wide range of values, with soft and bony TM-annulus boundary conditions. MEG is recomputed and plotted for each case, along with summaries of the magnitude a

SUBMITTER: O'Connor KN 

PROVIDER: S-EPMC5681352 | biostudies-literature | 2017 Nov

REPOSITORIES: biostudies-literature