Improving the differential diagnosis of otitis media with effusion using wideband acoustic immittance

GR Merchant, S Al-Salim, RM Tempero… - Ear and …, 2021 - journals.lww.com
Objectives: The objective of this work is to determine whether there is a systematic effect of
middle ear effusion volume on wideband acoustic immittance in children with surgically …

Effect of cochlear implantation on vestibular evoked myogenic potentials and wideband acoustic immittance

GR Merchant, KM Schulz, JN Patterson… - Ear and …, 2020 - journals.lww.com
Objectives: The objective of this study was to determine if absent air conduction stimuli
vestibular evoked myogenic potential (VEMP) responses found in ears after cochlear …

Conductive hearing loss estimated from wideband acoustic immittance measurements in ears with otitis media with effusion

GR Merchant, ST Neely - Ear and hearing, 2023 - journals.lww.com
Objectives: Previous work has shown that wideband acoustic immittance (WAI) is sensitive
to the volume of effusion present in ears with otitis media with effusion (OME). Prior work …

The influence of otitis media with effusion on middle-ear impedance estimated from wideband acoustic immittance measurements

GR Merchant, ST Neely - The Journal of the Acoustical Society of …, 2021 - pubs.aip.org
The goal of this work was to estimate the middle-ear input impedance (⁠ Z me⁠) from
wideband acoustic immittance (WAI) measures and determine whether Z me improves the …

Compensating for evanescent modes and estimating characteristic impedance in waveguide acoustic impedance measurements

KR Nørgaard, E Fernandez-Grande… - The Journal of the …, 2017 - pubs.aip.org
The ear-canal acoustic impedance and reflectance are useful for assessing conductive
hearing disorders and calibrating stimulus levels in situ. However, such probe-based …

A comparison of ear-canal-reflectance measurement methods in an ear simulator

KR Nørgaard, KK Charaziak, CA Shera - The Journal of the Acoustical …, 2019 - pubs.aip.org
Ear-canal reflectance has been researched extensively for diagnosing conductive hearing
disorders and compensating for the ear-canal acoustics in non-invasive measurements of …

Compensating for oblique ear-probe insertions in ear-canal reflectance measurements

KR Nørgaard, E Fernandez-Grande… - The Journal of the …, 2019 - pubs.aip.org
Measurements of the ear-canal reflectance using an ear probe require estimating the
characteristic impedance of the ear canal in situ. However, an oblique insertion of the ear …

A reciprocity method for validating acoustic ear-probe source calibrations

KM Nørgaard - The Journal of the Acoustical Society of America, 2022 - pubs.aip.org
Measurements of wideband acoustic immittance (WAI) rely on the calibration of an ear probe
to obtain its acoustic source parameters. The clinical use of WAI and instruments offering the …

Effects of forward-and emitted-pressure calibrations on the variability of otoacoustic emission measurements across repeated probe fits

T Maxim, CA Shera, KK Charaziak, C Abdala - Ear and hearing, 2019 - journals.lww.com
Objective: The stimuli used to evoke otoacoustic emissions (OAEs) are typically calibrated
based on the total SPL measured at the probe microphone. However, due to the acoustics of …

Quantifying undesired parallel components in Thévenin-equivalent acoustic source parameters

KR Nørgaard, ST Neely… - The Journal of the …, 2018 - pubs.aip.org
The calibration of an ear probe to determine its Thévenin-equivalent acoustic source
parameters facilitates the measurement of ear-canal impedance and reflectance. Existing …