Clinical benefit of wideband-tympanometry: a pediatric audiology clinical study

Stuppert, Laura; Nospes, S.; Bohnert, Andrea; Läßig, Anne Katrin; Limberger, Annette

doi:10.1007/s00405-019-05498-2

Cited by 7 publications

(3 citation statements)

References 23 publications

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“…In addition, excessive pressure can cause rupture of the membrane labyrinth, ion mixing of endolymphatic and perilymphatic fluids, and stria vascularis dysfunction, resulting in ion transport disorders and protein exudation. Low signals on inner ear images indirectly indicate changes in the composition and properties of lymph fluids ( Polat et al, 2015 ; Stuppert et al, 2019 ; Hougaard et al, 2020 ; Wu et al, 2022 ). These changes can damage hair cells and alter sound transmission performance.…”

Section: Discussionmentioning

confidence: 99%

Characteristics of large vestibular aqueduct syndrome in wideband acoustic immittance

Gao³

et al. 2023

Front. Neurosci.

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ObjectiveTo describe the characteristics of large vestibular aqueduct syndrome (LVAS) in wideband acoustic immittance (WAI) and to explore whether inner ear deformity has an impact on WAI results.MethodsSubjects with typical LVAS (LVAS group) and control subjects with a normal anatomical structure of the inner ear (control group) were screened from pediatric patients with cochlear implants using thin-slice computed tomography (CT) images of the temporal bone. With inflammation of the auditory canal and middle ear excluded by routine ear examination and 226 Hz acoustic immittance, WAI data were acquired. Then, the maximum absorbance as the major observation indicator on the mean tympanogram was compared between the LVAS group and control group, and a descriptive comparison of the mean tympanogram and frequency-absorbance curve at peak pressure was performed between the two groups.ResultsThe LVAS group included 21 cases (38 ears), and the control group included 27 cases (45 ears). All LVAS subjects met the Valvassori criteria, and the VA at the horizontal semicircular canal displayed flared expansion. On the mean tympanogram, the maximum absorbance in the LVAS group (0.542 ± 0.087) was significantly higher than that in the control group (0.455 ± 0.087) (p < 0.001). The tympanogram in the LVAS group showed an overall elevation, and the absorbance at all pressure sampling points was significantly higher than that in the control group (p < 0.001). The frequency-absorbance curve at peak pressure first increased and then decreased in both groups, and the LVAS group showed higher absorbance than the control group in the frequency range below 2,828 Hz. The absorbance at 343–1,124 Hz was significantly different between the two groups (p < 0.001), and 343–1,124 Hz was the major frequency range at which the maximum absorbance on the mean tympanogram increased in the LVAS group.ConclusionLarge vestibular aqueduct syndrome (LVAS) shows increased absorbance in low and medium frequency ranges in WAI. The maximum absorbance on the mean tympanogram can serve as a reliable evaluation indicator. Inner ear factors must be considered when middle ear lesions are analyzed by WAI.

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Section: Discussionmentioning

confidence: 99%

Characteristics of large vestibular aqueduct syndrome in wideband acoustic immittance

Gao³

et al. 2023

Front. Neurosci.

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“…Recent evidence has suggested that Wideband Acoustic Immittance (WAI) could be a sensitive method to detect the changes in inner ear pressure, which is hypothesized to be increased in LVAS [ 26 ]. WAI using frequencies from 226 to 8000 Hz has been proposed to be more sensitive to changes in both mass and stiffness components and to detect minor changes in the transmission characteristics [ [26] , [27] , [28] , [29] , [30] , [31] ]. Several studies have investigated the use of WAI in inner ear diseases, such as Meniere disease [ 27 , 32 ], superior semicircular canal dehiscence [ 27 , 32 ], inner ear malformations [ 29 ], and LVAS [ 26 ].…”

Section: Introductionmentioning

confidence: 99%

Predictive accuracy of wideband absorbance in children with large vestibular aqueduct syndrome: A single-center retrospective study

Jiang,

Li,

et al. 2024

Heliyon

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“…Wideband tympanometry (WBT) is an extension to standard tympanometry in that it measures the ear canal's acoustic properties over a range of frequencies [5], [6]. The use of a wideband stimulus (i.e., short duration rectangular pulse or a chirp covering the range of 226Hz to 8000Hz) has been shown to be more efficient and precise for middle ear assessment [7]- [11] than a normal 226 Hz or 1 kHz tympanogram, since it simultaneously determines the characteristics of the middle ear over the full range of the audiometrically most important frequencies. Because of the presence of multiple frequencies in the transient stimuli, WBT is less susceptible to myogenic noise, which originates from the patient's movements [4].…”

Section: Introductionmentioning

confidence: 99%

A Deep Learning Approach for Detecting Otitis Media From Wideband Tympanometry Measurements

Sundgaard

Bray

Laugesen

et al. 2022

IEEE J. Biomed. Health Inform.

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Objective: In this study, we propose an automatic diagnostic algorithm for detecting otitis media based on wideband tympanometry measurements. Methods: We develop a convolutional neural network for classification of otitis media based on the analysis of the wideband tympanogram. Saliency maps are computed to gain insight into the decision process of the convolutional neural network. Finally, we attempt to distinguish between otitis media with effusion and acute otitis media, a clinical subclassification important for the choice of treatment. Results: The approach shows high performance on the overall otitis media detection with an accuracy of 92.6%. However, the approach is not able to distinguish between specific types of otitis media. Conclusion: Out approach can detect otitis media with high accuracy and the wideband tympanogram holds more diagnostic information than the commonly used techniques wideband absorbance measurements and simple tympanograms. Significance: This study shows how advanced deep learning methods enable automatic diagnosis of otitis media based on wideband tympanometry measurements, which could become a valuable diagnostic tool.

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Clinical benefit of wideband-tympanometry: a pediatric audiology clinical study

Cited by 7 publications

References 23 publications

Characteristics of large vestibular aqueduct syndrome in wideband acoustic immittance

Characteristics of large vestibular aqueduct syndrome in wideband acoustic immittance

Predictive accuracy of wideband absorbance in children with large vestibular aqueduct syndrome: A single-center retrospective study

A Deep Learning Approach for Detecting Otitis Media From Wideband Tympanometry Measurements

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