Results 21 to 30 of about 172,842 (350)

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

Comparison of auditory brainstem response peak measures using ear lobe, mastoid, and custom ear canal reference electrodes

open access: yesAudiology Research, 2012
Auditory brainstem response (ABR) peak measures were compared for a custom ear canal electrode and traditional mastoid and ear lobe reference electrode sites with the assumption that the ear canal electrode would yield larger Wave I amplitudes.
Samuel R. Atcherson   +3 more
doaj   +1 more source

Capillary Hemangioma as an Unexpected Pathology in the External Auditory Canal [PDF]

open access: yesIranian Journal of Otorhinolaryngology, 2022
Introduction:Hemangiomas are benign vascular lesions frequently observed in infancy and childhood. Case Report:A 14-year-old boy was referred to the hospital with a left-sided ear canal mass and hearing impairment.
Behrouz Barati   +2 more
doaj   +1 more source

In vivo investigation of ear canal pulse oximetry during hypothermia [PDF]

open access: yes, 2017
Pulse oximeters rely on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO(Formula presented.)). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, the PPG signals ...
AA Awad   +17 more
core   +1 more source

Building and Testing a Statistical Shape Model of the Human Ear Canal [PDF]

open access: yes, 2002
. Today the design of custom in-the-ear hearing aids is based on personal experience and skills and not on a systematic description of the variation of the shape of the ear canal. In this paper it is described how a dense surface point distribution model
C. Lorenz   +14 more
core   +3 more sources

Labyrinthine artery aneurysm as an internal auditory canal mass. [PDF]

open access: yes, 2014
We present the first case report of a labyrinthine artery aneurysm masquerading as an internal auditory canal tumor. A 72-year-old woman presented with sudden onset right facial paralysis, facial pain, hearing loss, and vertigo.
Brunberg, James   +2 more
core   +1 more source

First Branchial Cleft Fistula Associated with External Auditory Canal Stenosis and Middle Ear Cholesteatoma [PDF]

open access: yesIranian Journal of Otorhinolaryngology, 2014
Introduction: First branchial cleft anomalies manifest with duplication of the external auditory canal.   Case Report: This report features a rare case of microtia and congenital middle ear and canal cholesteatoma with first branchial fistula.
shahin abdollahi fakhim   +2 more
doaj   +2 more sources

The endocranial morphology and inner ear of the abelisaurid theropod Aucasaurus garridoi [PDF]

open access: yes, 2015
A partial cranial endocast and right inner ear of the Cretaceous abelisaurid dinosaur Aucasaurus garridoi were digitally reconstructed from CT scans.
Paulina Carabajal, Ariana   +1 more
core   +1 more source

Investigation of photoplethysmography and arterial blood oxygen saturation from the ear-canal and the finger under conditions of artificially induced hypothermia [PDF]

open access: yes, 2015
Pulse oximeters relay on the technique of photoplethysmography (PPG) to estimate arterial oxygen saturation (SpO2). In conditions of poor peripheral perfusion such as hypotension, hypothermia, and vasoconstriction, pulse oximeters become inaccurate or ...
Budidha, K., Kyriacou, P. A.
core   +1 more source

Anatomical study of the pigs temporal bone by microdissection [PDF]

open access: yes, 2014
PURPOSE:Initial study of the pig`s temporal bone anatomy in order to enable a new experimental model in ear surgery.METHODS:Dissection of five temporal bones of Sus scrofa pigs obtained from UNIFESP - Surgical Skills Laboratory, removed with hole saw to ...
Andrade, José Santos Cruz de [UNIFESP]   +2 more
core   +8 more sources

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