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Title
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3D displacement of the middle ear ossicles in the quasi-static pressure regime using new X-ray stereoscopy technique
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Author
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Abstract
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| A novel X-ray stereoscopy technique, using greyscale information obtained from moving markers, was used to study the 3D motion in both gerbil and rabbit middle ear ossicles in the quasi-static pressure regime. The motion can be measured without visually exposing the ossicles. The ossicles showed non-linear behaviour as a function of both pressure and frequency. For instance, about 80% of the maximum umbo displacement occurs at a 1 kPa (peak-to-peak) pressure load, while a limited increase of the amplitude is noticed when the pressure goes to 2 kPa. In rabbit the ratio of stapes to umbo motion amplitude was 0.35 for a pressure of 2 kPa (peak-to-peak) at 0.5 Hz. From two stereoscopic projections of the marker paths, 3D motion of the ossicles could be calculated. This motion is demonstrated on high-resolution computer models in order to visualize ossicular chain behaviour. |
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Language
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English
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Source (journal)
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Hearing research. - Amsterdam
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Publication
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Amsterdam
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Elsevier science bv
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2016
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ISSN
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0378-5955
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DOI
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10.1016/J.HEARES.2015.12.003
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Volume/pages
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340
(2016)
, p. 60-68
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ISI
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000386417900008
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Pubmed ID
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26723101
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Full text (Publisher's DOI)
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Full text (open access)
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Full text (publisher's version - intranet only)
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