Document Detail


Clinical applications of a finite-element model of the human middle ear.
MedLine Citation:
PMID:  11771004     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Computer-generated models are increasingly being used in otolaryngology for teaching purposes, preoperative planning, and clinical simulations, especially when dealing with small, complex areas such as the middle ear. One technique used to analyze the mechanics of complex models is the finite-element method, whereby the system of interest is divided into a large number of small, simple elements. The mechanical properties and applied forces are represented by functions defined over each element, and the mechanical response of the whole system can then be computed. We present a unique three-dimensional finite-element model of the human eardrum and middle ear. Our model takes advantage of phase-shift moiré shape measurements to precisely define the shape of the eardrum. The middle ear geometry is derived from histologic serial sections and from high-resolution magnetic resonance microscopy of the human ear. We discuss the importance of this model in terms of understanding and teaching the mechanics of the human middle ear, simulating various pathologic conditions, and designing ossicular prostheses.
Authors:
S J Daniel; W R Funnell; A G Zeitouni; M D Schloss; J Rappaport
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of otolaryngology     Volume:  30     ISSN:  0381-6605     ISO Abbreviation:  J Otolaryngol     Publication Date:  2001 Dec 
Date Detail:
Created Date:  2001-12-27     Completed Date:  2002-05-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7610513     Medline TA:  J Otolaryngol     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  340-6     Citation Subset:  IM    
Affiliation:
Department of Otolaryngology, McGill University, Montreal, Quebec.
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MeSH Terms
Descriptor/Qualifier:
Computer Simulation*
Ear Ossicles / anatomy & histology,  physiopathology
Ear, Middle / anatomy & histology*,  physiopathology
Hearing Disorders / diagnosis
Humans
Perioperative Care
Prosthesis Design
Teaching / methods
Tympanic Membrane / anatomy & histology,  physiopathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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