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Towards an interactive framework for upper airway modeling : integration of acoustic, biomechanic, and parametric modeling methods Vogt, Florian
Abstract
The human upper airway anatomy consists of the jaw, tongue, pharynx, larynx, palate, nasal cavities, nostrils, lips, and adjacent facial structures. It plays a central role in speaking, mastication, breathing, and swallowing. The interplay and correlated movements between all the anatomical structures are complex and basic physiological functions, such as the muscle activation patterns associated with chewing or swallowing, are not well understood. This work creates a modeling framework as a bridge between such disciplines as linguistics, dentistry, biomechanics, and acoustics to enable the integration of physiological knowledge with interactive simulation methods. This interactive model of the upper airway system allows better understanding of the anatomical structures and their overall function. A three-dimensional computational modeling framework is proposed to mimic the behavior of the upper airway anatomy as a system by combining biomechanic, parametric, and acoustic modeling methods. Graphical user interface components enable the interactive manipulation of models and orchestration of physiological functions. A three-dimensional biomechanical tongue model is modified as a reference model of the modeling framework to demonstrate integration of an existing model and to enable interactivity and validation procedures. Interactivity was achieved by introducing a general-purpose fast linear finite element muscle model. Feasible behavior of the biomechanical tongue model is ensured by comparison with a reference model and matching the model to medical image data. In addition to the presented generic tongue model, individual differences in shape and function are important for clinical applications. Different medical image modalities may jointly enable guidance of the creation on individuals’ anatomy models. Automatic methods to extract shape and function are investigated to demonstrate the feasibility of upper airway image-based modeling for this modeling framework. This work may be continued in many other directions to simulate the upper airway for speaking, breathing, and swallowing. For example, progress has already been made to develop a complete vocal tract model whereby the tongue model, jaw model, and acoustic airway are connected. Further, it is planned to apply the same tissue modeling methods to represent other muscle groups and model the interaction with other anatomical substructures of the vocal tract such as the face, lips and soft palate.
Item Metadata
Title |
Towards an interactive framework for upper airway modeling : integration of acoustic, biomechanic, and parametric modeling methods
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
2009
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Description |
The human upper airway anatomy consists of the jaw, tongue, pharynx, larynx, palate, nasal
cavities, nostrils, lips, and adjacent facial structures. It plays a central role in speaking,
mastication, breathing, and swallowing. The interplay and correlated movements between
all the anatomical structures are complex and basic physiological functions, such as the
muscle activation patterns associated with chewing or swallowing, are not well understood.
This work creates a modeling framework as a bridge between such disciplines as linguistics,
dentistry, biomechanics, and acoustics to enable the integration of physiological knowledge
with interactive simulation methods. This interactive model of the upper airway system
allows better understanding of the anatomical structures and their overall function. A
three-dimensional computational modeling framework is proposed to mimic the behavior
of the upper airway anatomy as a system by combining biomechanic, parametric, and
acoustic modeling methods. Graphical user interface components enable the interactive
manipulation of models and orchestration of physiological functions. A three-dimensional
biomechanical tongue model is modified as a reference model of the modeling framework
to demonstrate integration of an existing model and to enable interactivity and validation
procedures. Interactivity was achieved by introducing a general-purpose fast linear finite
element muscle model. Feasible behavior of the biomechanical tongue model is ensured
by comparison with a reference model and matching the model to medical image data.
In addition to the presented generic tongue model, individual differences in shape and
function are important for clinical applications. Different medical image modalities may
jointly enable guidance of the creation on individuals’ anatomy models. Automatic methods
to extract shape and function are investigated to demonstrate the feasibility of upper airway
image-based modeling for this modeling framework. This work may be continued in many
other directions to simulate the upper airway for speaking, breathing, and swallowing. For
example, progress has already been made to develop a complete vocal tract model whereby
the tongue model, jaw model, and acoustic airway are connected. Further, it is planned to
apply the same tissue modeling methods to represent other muscle groups and model the
interaction with other anatomical substructures of the vocal tract such as the face, lips and
soft palate.
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Extent |
4386325 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-05-01
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0067236
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
2009-05
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Campus | |
Scholarly Level |
Graduate
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Rights URI | |
Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivatives 4.0 International