- Library Home /
- Search Collections /
- Open Collections /
- Browse Collections /
- UBC Theses and Dissertations /
- Wideband reflectance in normal school-aged children...
Open Collections
UBC Theses and Dissertations
UBC Theses and Dissertations
Wideband reflectance in normal school-aged children and in children with otitis media Beers, Alison Nicole
Abstract
In addition to the high prevalence of otitis media with effusion (OME), researchers are motivated to develop methods for early and accurate OME diagnosis because of the financial strain on the health care system associated with its diagnosis and management, and the medical and developmental consequences that may manifest if OME is left untreated. Standard (226 Hz) and high frequency (1000 Hz) tympanometry have traditionally been used clinically to assess middle ear status in children. A relatively new advanced middle ear analysis technique is Wideband reflectance (WBR). WBR has the potential to provide more information regarding the status of the middle ear than the methods currently being used clinically. This technique provides frequency-specific information about sound conduction through the peripheral auditory system. As a result of its recent introduction as an analysis method there is limited normative data available for this measurement system for pediatric populations and for those with middle ear pathology. Development of normative pediatric WBR data may render this technique a highly useful diagnostic tool for assessing the mechano-acoustical properties of middle ear function and for differentiating between healthy and pathological middle ears. WBR patterns from 55 subjects (102 ears) with normal middle ear status and 39 subjects (57 ears) with varying degrees of middle ear pathology were measured. The mean and the 5t h and 95t h percentile ranges were graphically presented. Repeated measures analysis of variance was performed with frequency as the within subjects factor and age (child versus adult), middle ear condition (normal, mild negative pressure, severe negative pressure or effusion), race (Caucasian versus Chinese) and/or gender as the between subjects factors. Frequency-specific significant WBR pattern differences existed for reactance-based and impedance-based measures, between pediatric and adult groups, Caucasian children and Chinese children, and all four middle ear conditions. Wideband reflectance must be further explored within a pediatric population before results can be generalized, but this measurement technique shows promise of providing a better understanding of the mechanico-acoustic properties of the middle ear and the changes to the system's functioning with middle ear pathology.
Item Metadata
Title |
Wideband reflectance in normal school-aged children and in children with otitis media
|
Creator | |
Publisher |
University of British Columbia
|
Date Issued |
2007
|
Description |
In addition to the high prevalence of otitis media with effusion (OME), researchers
are motivated to develop methods for early and accurate OME diagnosis because of the
financial strain on the health care system associated with its diagnosis and management, and
the medical and developmental consequences that may manifest if OME is left untreated.
Standard (226 Hz) and high frequency (1000 Hz) tympanometry have traditionally been used
clinically to assess middle ear status in children. A relatively new advanced middle ear
analysis technique is Wideband reflectance (WBR). WBR has the potential to provide more
information regarding the status of the middle ear than the methods currently being used
clinically. This technique provides frequency-specific information about sound conduction
through the peripheral auditory system. As a result of its recent introduction as an analysis
method there is limited normative data available for this measurement system for pediatric
populations and for those with middle ear pathology. Development of normative pediatric
WBR data may render this technique a highly useful diagnostic tool for assessing the
mechano-acoustical properties of middle ear function and for differentiating between healthy
and pathological middle ears.
WBR patterns from 55 subjects (102 ears) with normal middle ear status and 39
subjects (57 ears) with varying degrees of middle ear pathology were measured. The mean
and the 5t h and 95t h percentile ranges were graphically presented. Repeated measures
analysis of variance was performed with frequency as the within subjects factor and age
(child versus adult), middle ear condition (normal, mild negative pressure, severe negative
pressure or effusion), race (Caucasian versus Chinese) and/or gender as the between subjects
factors. Frequency-specific significant WBR pattern differences existed for reactance-based and impedance-based measures, between pediatric and adult groups, Caucasian children and
Chinese children, and all four middle ear conditions. Wideband reflectance must be further
explored within a pediatric population before results can be generalized, but this
measurement technique shows promise of providing a better understanding of the
mechanico-acoustic properties of the middle ear and the changes to the system's functioning
with middle ear pathology.
|
Genre | |
Type | |
Language |
eng
|
Date Available |
2011-03-04
|
Provider |
Vancouver : University of British Columbia Library
|
Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
DOI |
10.14288/1.0101169
|
URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
|
Campus | |
Scholarly Level |
Graduate
|
Aggregated Source Repository |
DSpace
|
Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.