Title
3D displacement of the middle ear ossicles in the quasi-static pressure regime using new X-ray stereoscopy technique 3D displacement of the middle ear ossicles in the quasi-static pressure regime using new X-ray stereoscopy technique
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
Amsterdam :Elsevier science bv ,
Subject
Biology
Human medicine
Source (journal)
Hearing research. - Amsterdam
Volume/pages
340(2016) , p. 60-68
ISSN
0378-5955
ISI
000386417900008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/567b22/130007.pdf
E-info
https://repository.uantwerpen.be/docman/iruaauth/7c497e/130007.pdf
Handle