The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique
We propose a noninvasive method to estimate the time constant. The calculation of this factor permits us to understand the pressure variations of the inner ear and also predict the behavior of the flow resistance of the cochlear aqueduct. A set of mathematical relationships incorporating the intrala...
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| Format: | Article |
| Language: | English |
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Wiley
2009-01-01
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| Series: | Modelling and Simulation in Engineering |
| Online Access: | http://dx.doi.org/10.1155/2009/570124 |
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| author | Raghida Traboulsi Georges Poumarat Jean Chazal Paul Avan Thierry Mom Isabelle Ronchan-Cole Salam Traboulsi |
| author_facet | Raghida Traboulsi Georges Poumarat Jean Chazal Paul Avan Thierry Mom Isabelle Ronchan-Cole Salam Traboulsi |
| author_sort | Raghida Traboulsi |
| collection | DOAJ |
| description | We propose a noninvasive method to estimate the time constant. The calculation of this factor permits us to understand the pressure variations of the inner ear and also predict the behavior of the flow resistance of the cochlear aqueduct. A set of mathematical relationships incorporating the intralabyrinthine pressure, the intracranial pressure, and the time constant was applied. The modeling process describes the hydrodynamic effects of the cerebrospinal fluid in the intralabyrinthine fluid space, where the input and output of the created model are, respectively, the sinusoidal variation of the respiration signal and the distortion product of otoacoustic emissions. The obtained results were compared with those obtained by different invasive techniques. A long time constant was detected each time when the intracranial pressure increased; this phenomenon is related to the role of the cochlear aqueduct described elsewhere. The interpretation of this model has revealed the ability of these predictions to provide a greater precision for hydrodynamic variation of the inner ear, consequently the variation of the dynamic process of the cerebrospinal fluid. |
| format | Article |
| id | doaj-art-f352dbb20e4b467db96cba86a5b8eef1 |
| institution | Kabale University |
| issn | 1687-5591 1687-5605 |
| language | English |
| publishDate | 2009-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Modelling and Simulation in Engineering |
| spelling | doaj-art-f352dbb20e4b467db96cba86a5b8eef12025-08-20T03:25:47ZengWileyModelling and Simulation in Engineering1687-55911687-56052009-01-01200910.1155/2009/570124570124The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive TechniqueRaghida Traboulsi0Georges Poumarat1Jean Chazal2Paul Avan3Thierry Mom4Isabelle Ronchan-Cole5Salam Traboulsi6Laboratory of Biomechanics and Anatomy, School of Medicine, Clermont 1 University, BAPS EA 3533, Clermont-Ferrand, FranceLaboratory of Biomechanics and Anatomy, School of Medicine, Clermont 1 University, BAPS EA 3533, Clermont-Ferrand, FranceLaboratory of Sensory Biophysics, School of Medicine, Clermont 1 University, Clermont-Ferrand, FranceLaboratory of Sensory Biophysics, School of Medicine, Clermont 1 University, Clermont-Ferrand, FranceLaboratory of Sensory Biophysics, School of Medicine, Clermont 1 University, Clermont-Ferrand, FranceLaboratory of Sensory Biophysics, School of Medicine, Clermont 1 University, Clermont-Ferrand, FranceLaboratory of Sensory Biophysics, School of Medicine, Clermont 1 University, Clermont-Ferrand, FranceWe propose a noninvasive method to estimate the time constant. The calculation of this factor permits us to understand the pressure variations of the inner ear and also predict the behavior of the flow resistance of the cochlear aqueduct. A set of mathematical relationships incorporating the intralabyrinthine pressure, the intracranial pressure, and the time constant was applied. The modeling process describes the hydrodynamic effects of the cerebrospinal fluid in the intralabyrinthine fluid space, where the input and output of the created model are, respectively, the sinusoidal variation of the respiration signal and the distortion product of otoacoustic emissions. The obtained results were compared with those obtained by different invasive techniques. A long time constant was detected each time when the intracranial pressure increased; this phenomenon is related to the role of the cochlear aqueduct described elsewhere. The interpretation of this model has revealed the ability of these predictions to provide a greater precision for hydrodynamic variation of the inner ear, consequently the variation of the dynamic process of the cerebrospinal fluid.http://dx.doi.org/10.1155/2009/570124 |
| spellingShingle | Raghida Traboulsi Georges Poumarat Jean Chazal Paul Avan Thierry Mom Isabelle Ronchan-Cole Salam Traboulsi The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique Modelling and Simulation in Engineering |
| title | The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique |
| title_full | The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique |
| title_fullStr | The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique |
| title_full_unstemmed | The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique |
| title_short | The Estimation of the Time Constant of the Human Inner Ear Pressure Change by Noninvasive Technique |
| title_sort | estimation of the time constant of the human inner ear pressure change by noninvasive technique |
| url | http://dx.doi.org/10.1155/2009/570124 |
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