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Tympanic membrane contour measurement with two source positions in digital holographic interferometry
The data acquisition from the shape of an object is a must to complete its quantitative displacement measurement analysis. Over the past years whole field of view optical non-invasive testing has been widely used in many areas, from industrial ones to, for instance, biomedical research topics. To me...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Optical Society of America
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3521304/ https://www.ncbi.nlm.nih.gov/pubmed/23243570 http://dx.doi.org/10.1364/BOE.3.003203 |
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author | Solís, Silvino M. Hernández-Montes, María del S. Santoyo, Fernando M. |
author_facet | Solís, Silvino M. Hernández-Montes, María del S. Santoyo, Fernando M. |
author_sort | Solís, Silvino M. |
collection | PubMed |
description | The data acquisition from the shape of an object is a must to complete its quantitative displacement measurement analysis. Over the past years whole field of view optical non-invasive testing has been widely used in many areas, from industrial ones to, for instance, biomedical research topics. To measure the surface contour from the tympanic membrane (TM) of ex-vivo cats digital holographic interferometry (DHI) is used in combination with a two-illumination positions method: the shape is directly measured from the phase change between two source positions by means of a digital Fourier transform method. The TM shape data in conjunction with its displacement data renders a complete and accurate description of the TM deformation, a feature that no doubt will serve to better comprehend the hearing process. Acquiring knowledge from the tissue shape indicates a mechanical behavior and, indirectly, an alteration in the physiological structure due to middle ear diseases or damages in the tissue that can deteriorate sound transmission. The TM shape contour was successfully measured by using two source positions within DHI showing that the TM has a conical shape. Its maximum depth was found to be 2 mm, considering the umbo as the reference point with respect to the TM annulus plane, where the setup is arranged in such a manner that it is capable of measuring a height of up to 7 mm. |
format | Online Article Text |
id | pubmed-3521304 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | Optical Society of America |
record_format | MEDLINE/PubMed |
spelling | pubmed-35213042012-12-14 Tympanic membrane contour measurement with two source positions in digital holographic interferometry Solís, Silvino M. Hernández-Montes, María del S. Santoyo, Fernando M. Biomed Opt Express Otolaryngology The data acquisition from the shape of an object is a must to complete its quantitative displacement measurement analysis. Over the past years whole field of view optical non-invasive testing has been widely used in many areas, from industrial ones to, for instance, biomedical research topics. To measure the surface contour from the tympanic membrane (TM) of ex-vivo cats digital holographic interferometry (DHI) is used in combination with a two-illumination positions method: the shape is directly measured from the phase change between two source positions by means of a digital Fourier transform method. The TM shape data in conjunction with its displacement data renders a complete and accurate description of the TM deformation, a feature that no doubt will serve to better comprehend the hearing process. Acquiring knowledge from the tissue shape indicates a mechanical behavior and, indirectly, an alteration in the physiological structure due to middle ear diseases or damages in the tissue that can deteriorate sound transmission. The TM shape contour was successfully measured by using two source positions within DHI showing that the TM has a conical shape. Its maximum depth was found to be 2 mm, considering the umbo as the reference point with respect to the TM annulus plane, where the setup is arranged in such a manner that it is capable of measuring a height of up to 7 mm. Optical Society of America 2012-11-08 /pmc/articles/PMC3521304/ /pubmed/23243570 http://dx.doi.org/10.1364/BOE.3.003203 Text en ©2012 Optical Society of America http://creativecommons.org/licenses/by-nc-nd/3.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially. |
spellingShingle | Otolaryngology Solís, Silvino M. Hernández-Montes, María del S. Santoyo, Fernando M. Tympanic membrane contour measurement with two source positions in digital holographic interferometry |
title | Tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
title_full | Tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
title_fullStr | Tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
title_full_unstemmed | Tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
title_short | Tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
title_sort | tympanic membrane contour measurement with two source positions in digital
holographic interferometry |
topic | Otolaryngology |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3521304/ https://www.ncbi.nlm.nih.gov/pubmed/23243570 http://dx.doi.org/10.1364/BOE.3.003203 |
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