Results 111 to 120 of about 1,983,075 (313)

Optical Coherence Tomography as an Emerging Technique for Identifying Pediatric Middle Ear Effusion

open access: yesThe Laryngoscope, EarlyView.
This prospective study evaluated optical coherence tomography (OCT) as a diagnostic tool for identifying middle ear effusion (MEE) in 164 pediatric patients. OCT was determined to have a sensitivity of 74% and a specificity of 93%, comparable to otoscopy and tympanometry, with moderate agreement (κ = 0.41) between clinical and non‐clinical raters.
Roger Neuberger   +7 more
wiley   +1 more source

ENDOSCOPIC TYPMPANOMASTOID EXPLORATION [FUNCTIONAL ENDOSCOPIC EAR SURGERY-FEES] [PDF]

open access: yes, 2012
Tympano mastoidectomy is usually performed using operating microscope. This study reports a case series of tympanomastoidectomy which was performed using an endoscope.Endoscopic Tympanomastoidectomy for atticoantral type of CSOM is an excellent technique 
Kumar, Sanjay   +2 more
core   +1 more source

Mastoid Surgery Does Not Normalize Tympanometric Middle Ear Pressure in Children With Cholesteatoma

open access: yesThe Laryngoscope, EarlyView.
Conflicting mechanism‐based hypotheses have been used to promote selection of different approaches to management of the mastoid in order to optimize middle ear pressure homeostasis after removal of cholesteatoma. For example: (a) conservation of mastoid mucosa and opening of ventilation pathways endoscopically to normalize function, (b) removal of ...
Adrian L. James
wiley   +1 more source

A hypothetical proposal for association between migraine and Meniere's disease. [PDF]

open access: yes, 2020
Meniere's disease (MD) is a chronic condition affecting the inner ear whose precise etiology is currently unknown. We propose the hypothesis that MD is a migraine-related phenomenon which may have implications for future treatment options for both ...
Abouzari, Mehdi   +3 more
core  

The Effect of Ear Canal Orientation on Tympanic Membrane Motion and the Sound Field Near the Tympanic Membrane [PDF]

open access: yes, 2015
The contribution of human ear canal orientation to tympanic membrane (TM) surface motion and sound pressure distribution near the TM surface is investigated by using an artificial ear canal (aEC) similar in dimensions to the natural human ear canal.
Cheng, Jeffrey Tao   +4 more
core   +1 more source

The Petrosquamous Septum in Children—A Misleading Obstacle or Reliable Landmark? A Radioanatomical Study

open access: yesOtolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To evaluate the petrosquamous septum in children under 5 years of age and its usefulness as a surgical landmark using computed tomography (CT); to identify petrosquamous stalactite and its relationship to the ossicular chain and external acoustic meatus is also described. Study Design Retrospective review of CT scans.
Tomasz Wojciechowski   +2 more
wiley   +1 more source

Multi-color reflectance imaging of middle ear pathology in vivo [PDF]

open access: yes, 2015
Otoscopic examination using white-light illumination has remained virtually unchanged for well over a century. However, the limited contrast of white-light otoscopy constrains the ability to make accurate assessment of middle ear pathology and is subject
Barman, Ishan   +7 more
core   +1 more source

Fast Small‐Angle X‐Ray Scattering Tensor Tomography: An Outlook into Future Applications in Life Sciences

open access: yesSmall Methods, EarlyView.
This study reveals the future potential of SAXS tensor tomography at macromolecular X‐ray crystallography beamlines and life sciences applications. A new standard in fast data acquisition is set, allowing for up‐to 10x higher throughput. The measurements show mineralised collagen fibrils within the incus bone of the human auditory ossicle.
Christian Appel   +20 more
wiley   +1 more source

FINITE-ELEMENT MODELLING OF THE TYMPANIC MEMBRANE RETRACTION POCKET UNDER NEGATIVE PRESSURE IN THE TYMPANIC CAVITY

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2015
The finite-element calculation of the static stress-strain state of the middle ear was made in this paper. The malleus, incus and stapes models were constructed on the basis of tomographic data.
Gennadi I. Mikhasev   +3 more
doaj  

A study of the relationships between the mechanical response of the tympanic membrane and the electrophysiological indicators of hearing in the bullfrog (Rana catesbeiana) [PDF]

open access: yes
Mechanical response of frog membrane to stimulating frequencies and electrophysiologically determined hearing ...
Majeau-Chargois, D. A., Whitehead, J. M.
core   +1 more source

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