Finite Element Modeling of Acousto-mechanical Coupling in the Cat Middle Ear

Overview

Journal J Acoust Soc Am

Publisher American Institute of Physics

Specialty Otorhinolaryngology

Date 2008 Jul 24

PMID 18646982

Citations 9

Authors

James P Tuck-Lee

Peter M Pinsky

Charles R Steele

Sunil Puria

Affiliations

Soon will be listed here.

Abstract

The function of the middle ear is to transfer acoustic energy from the ear canal to the cochlea. An essential component of this system is the tympanic membrane. In this paper, a new finite element model of the middle ear of the domestic cat is presented, generated in part from cadaver anatomy via microcomputed tomographic imaging. This model includes a layered composite model of the eardrum, fully coupled with the acoustics in the ear canal and middle-ear cavities. Obtaining the frequency response from 100 Hz to 20 kHz is a computationally challenging task, which has been accomplished by using a new adaptive implementation of the reduced-order matrix Padé-via-Lanczos algorithm. The results are compared to established physiological data. The fully coupled model is applied to study the role of the collagen fiber sublayers of the eardrum and to investigate the relationship between the structure of the middle-ear cavities and its function. Three applications of this model are presented, demonstrating the shift in the middle-ear resonance due to the presence of the septum that divides the middle-ear cavity space, the significance of the radial fiber layer on high frequency transmission, and the importance of the transverse shear modulus in the eardrum microstructure.

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References

Fay J, Puria S, Decraemer W, Steele C . Three approaches for estimating the elastic modulus of the tympanic membrane. J Biomech. 2005; 38(9):1807-15. DOI: 10.1016/j.jbiomech.2004.08.022. View

Sasaki N, Odajima S . Stress-strain curve and Young's modulus of a collagen molecule as determined by the X-ray diffraction technique. J Biomech. 1996; 29(5):655-8. DOI: 10.1016/0021-9290(95)00110-7. View

Guinan Jr J, PEAKE W . Middle-ear characteristics of anesthetized cats. J Acoust Soc Am. 1967; 41(5):1237-61. DOI: 10.1121/1.1910465. View

Funnell W, Decraemer W, Khanna S . On the damped frequency response of a finite-element model of the cat eardrum. J Acoust Soc Am. 1987; 81(6):1851-9. DOI: 10.1121/1.394749. View

PEAKE W, Rosowski J, Lynch 3rd T . Middle-ear transmission: acoustic versus ossicular coupling in cat and human. Hear Res. 1992; 57(2):245-68. DOI: 10.1016/0378-5955(92)90155-g. View

Rice J, May B, Spirou G, Young E . Pinna-based spectral cues for sound localization in cat. Hear Res. 1992; 58(2):132-52. DOI: 10.1016/0378-5955(92)90123-5. View

Kuypers L, Decraemer W, Dirckx J, Timmermans J . Thickness distribution of fresh eardrums of cat obtained with confocal microscopy. J Assoc Res Otolaryngol. 2005; 6(3):223-33. PMC: 2504591. DOI: 10.1007/s10162-005-0001-z. View

Lim D . Human tympanic membrane. An ultrastructural observation. Acta Otolaryngol. 1970; 70(3):176-86. DOI: 10.3109/00016487009181875. View

Funnell W, Decraemer W . On the incorporation of moiré shape measurements in finite-element models of the cat eardrum. J Acoust Soc Am. 1996; 100(2 Pt 1):925-32. DOI: 10.1121/1.416252. View

10.

Khanna S, TONNDORF J . Tympanic membrane vibrations in cats studied by time-averaged holography. J Acoust Soc Am. 1972; 51(6):1904-20. DOI: 10.1121/1.1913050. View

11.

Fay J, Puria S, Steele C . The discordant eardrum. Proc Natl Acad Sci U S A. 2006; 103(52):19743-8. PMC: 1702319. DOI: 10.1073/pnas.0603898104. View

12.

Sim J, Puria S . Soft tissue morphometry of the malleus-incus complex from micro-CT imaging. J Assoc Res Otolaryngol. 2008; 9(1):5-21. PMC: 2536804. DOI: 10.1007/s10162-007-0103-x. View

13.

Lynch 3rd T, PEAKE W, Rosowski J . Measurements of the acoustic input impedance of cat ears: 10 Hz to 20 kHz. J Acoust Soc Am. 1994; 96(4):2184-209. DOI: 10.1121/1.410160. View

14.

Decraemer W, Khanna S, Funnell W . Interferometric measurement of the amplitude and phase of tympanic membrane vibrations in cat. Hear Res. 1989; 38(1-2):1-17. DOI: 10.1016/0378-5955(89)90123-8. View

15.

TONNDORF J, Khanna S . Some properties of sound transmission in the middle and outer ears of cats. J Acoust Soc Am. 1967; 41(2):513-21. DOI: 10.1121/1.1910362. View

16.

OConnor K, Tam M, Blevins N, Puria S . Tympanic membrane collagen fibers: a key to high-frequency sound conduction. Laryngoscope. 2007; 118(3):483-90. DOI: 10.1097/MLG.0b013e31815b0d9f. View

17.

Nedzelnitsky V . Sound pressures in the basal turn of the cat cochlea. J Acoust Soc Am. 1980; 68(6):1676-89. DOI: 10.1121/1.385200. View

18.

Dallos P . Low-frequency auditory characteristics: Species dependence. J Acoust Soc Am. 1970; 48(2):489-99. DOI: 10.1121/1.1912163. View

19.

Musicant A, Chan J, HIND J . Direction-dependent spectral properties of cat external ear: new data and cross-species comparisons. J Acoust Soc Am. 1990; 87(2):757-81. DOI: 10.1121/1.399545. View

20.

Rabbitt R, Holmes M . A fibrous dynamic continuum model of the tympanic membrane. J Acoust Soc Am. 1986; 80(6):1716-28. DOI: 10.1121/1.394284. View