High-Speed Holographic Shape and Full-Field Displacement Measurements of the Tympanic Membrane in Normal and Experimentally Simulated Pathological Ears

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dc.contributor.authorTang, Haimi
dc.contributor.authorRazavi, Payam
dc.contributor.authorPooladvand, Koohyar
dc.contributor.authorPsota, Pavel
dc.contributor.authorMaftoon, Nima
dc.contributor.authorRosowski, John J.
dc.contributor.authorFurlong, Cosme
dc.contributor.authorCheng, Jeffrey T.
dc.date.accessioned2019-08-26T05:58:13Z
dc.date.available2019-08-26T05:58:13Z
dc.date.issued2019-07-02
dc.description.abstractTo improve the understanding of the middle-ear hearing mechanism and assist in the diagnosis of middle-ear diseases, we are developing a high-speed digital holographic (HDH) system to measure the shape and acoustically-induced transient displacements of the tympanic membrane (TM). In this paper, we performed measurements on cadaveric human ears with simulated common middle-ear pathologies. The frequency response function (FRF) of the normalized displacement by the stimulus (sound pressure) at each measured pixel point of the entire TM surface was calculated and the complex modal indicator function (CMIF) of the middle-ear system based on FRFs of the entire TM surface motions was used to differentiate different middle-ear pathologies. We also observed changes in the TM shape and the surface motion pattern before and after various middle-ear manipulations. The observations of distinguishable TM shapes and motion patterns in both time and frequency domains between normal and experimentally simulated pathological ears support the development of a quantitative clinical holography-based apparatus for diagnosing middle-ear pathologies.cs
dc.format.extent14 strancs
dc.identifier.doi10.3390/app9142809
dc.identifier.urihttps://dspace.tul.cz/handle/15240/153337
dc.identifier.urihttps://www.mdpi.com/2076-3417/9/14/2809
dc.language.isocscs
dc.publisherMDPI
dc.relation.ispartofAPPLIED SCIENCES-BASEL
dc.subjectfrequency transfer functionscs
dc.subjecthigh-speed digital holographycs
dc.subjecthuman tympanic membranecs
dc.subjectmiddle-ear pathologiescs
dc.titleHigh-Speed Holographic Shape and Full-Field Displacement Measurements of the Tympanic Membrane in Normal and Experimentally Simulated Pathological Earscs
local.accessopen access
local.article.number2809
local.relation.issue14
local.relation.volume9
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