|
Title
|
|
|
|
Hyperelastic warping applied to X-ray micro CT images for the study of human middle ear chain deformations understatic pressure load
|
|
|
Author
|
|
|
|
|
|
|
Abstract
|
|
|
|
| In everyday life the human ear is subject not only to sound but also to slow, quasi-static pressure variations with amplitudes in the order of tenths of a mm. In the present study we investigated how the ossicular chain deforms and changes its 3-D configuration when acted upon by large static pressures. To determine with good precision the small deformations of the ossicular chain we use 'hyperelastic warping, a deformable image registration method. In this relatively new technique a 3-D finite element model, based on careful segmentation of a template dataset, is deformed until it aligns with a target dataset at a different pressure. 3-D displacement of the ossicles will be shown and expressed mathematically by plotting the displacement of a few landmark points as a function of pressure. We will also describe the 3-D changes in configuration and show how the slippage in the ossicle joints performs as a protecting mechanism of the middle ear. |
|
|
|
Language
|
|
|
|
English
|
|
|
Source (book)
|
|
|
|
Middle ear mechanics in research and otology / Eiber, A. [edit.]
|
|
|
Publication
|
|
|
|
Singapore
:
World Scientific
,
2007
|
|
|
DOI
|
|
|
|
10.1142/9789812708694_0039
|
|
|
Volume/pages
|
|
|
|
p. 289-294
|
|
|
ISI
|
|
|
|
000261795300039
|
|
|
Full text (Publisher's DOI)
|
|
|
|
|
|