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Three-dimensional geometric modeling of the cochlea using helico-spiral approximation

Authors
 S.K. Yoo  ;  Ge Wang  ;  J.T. Rubinstein  ;  M.W. Vannier 
Citation
 IEEE Transactions on Biomedical Engineering, Vol.47(10) : 1392-1402, 2000 
Journal Title
 IEEE Transactions on Biomedical Engineering 
ISSN
 0018-9294 
Issue Date
2000
MeSH
Algorithms ; Cochlea/anatomy & histology* ; Humans ; Imaging, Three-Dimensional* ; Least-Squares Analysis ; Models, Anatomic* ; Tomography ; X-Ray Computed
Keywords
Solid modeling ; Humans ; Spirals ; Frequency estimation ; Geometry ; Parameter estimation ; Least squares methods ; Minimization methods ; Algorithm design and analysis ; Cochlear implants
Abstract
In this paper, the three-dimensional geometry of the human cochlea is modeled by the helico-spiral seashell model. The 3-D helico-spiral model, the generalized representation of the Archimedian spiral model, provides a framework for measuring cochlear features based on consistent estimation of model parameters. Nonlinear least square minimization based algorithms are developed for the identification of rotation, center and intrinsic parameters of the helico-spiral representation. Two algorithms are designed for the rotation axis aligned to the modiolar axis: one is more susceptible in the presence of noise, while the other allows applicability to two-dimensional data sets. The estimated center and intrinsic parameters allow the calculation of length, height and angular positions needed for frequency mapping of multichannel cochlear implant electrodes. Model performance is evaluated with numerically synthesized curves with different levels of added random noise, histologic data and real human cochlear spiral computed tomography data.
Full Text
https://ieeexplore.ieee.org/document/871413/authors#authors
DOI
10.1109/10.871413
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Medical Engineering (의학공학교실) > 1. Journal Papers
Yonsei Authors
Yoo, Sun Kook(유선국) ORCID logo https://orcid.org/0000-0002-6032-4686
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/171648
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