Results 1 to 10 of about 888 (116)

Evaluating temporal bone column density for optimized bone conduction implant placement [PDF]

Frontiers in Surgery, 2023
IntroductionAn optimal placement of bone conduction implants can provide more efficient mechanical transmission to the cochlea if placed in regions with greater bone column density.
Emile Talon, Emile Talon, Franca Wagner, Stefan Weder, Lukas Anschuetz, Marco Caversaccio, Marco Caversaccio, Wilhelm Wimmer, Wilhelm Wimmer   +8 more
doaj   +2 more sources

Bone-conduction hearing in elephants and humans: a middle-ear comparative study [PDF]

Frontiers in Audiology and Otology
The elephant's middle ear (ME) boasts ossicles approximately nine times more massive than humans', with eardrums seven times larger. These anatomical features contribute to enhanced low-frequency sensitivity to air-conducted (AC) sound, but their ...
Caitlin E. O'Connell-Rodwell, Caitlin E. O'Connell-Rodwell, Jodie L. Berezin, Anbuselvan Dharmarajan, Alessio Pignatelli, Rachel Chen, Rachel Chen, Francisco Uzal, Xiying Guan, Sunil Puria, Sunil Puria, Sunil Puria   +11 more
doaj   +2 more sources

Bone conduction stimulation efficiency at coupling locations closer to the cochlea [PDF]

Scientific Reports
Bone conduction implants enable patients to hear via vibrations transmitted to the skull. The main constraint of current bone conduction implants is their maximum output force level.
Irina Wils, Alexander Geerardyn, Guy Fierens, Tristan Putzeys, Kathleen Denis, Nicolas Verhaert   +5 more
doaj   +2 more sources

In Vivo Measurement of Ear Ossicle and Bony Wall Vibration by Sound Stimulation of Cartilage Conduction [PDF]

Audiology Research, 2023
The cartilage-conduction pathway was recently proposed as a third auditory pathway; however, middle-ear vibrations have not yet been investigated in vivo.
Hiroaki Yazama, Shiro Arii, Hideyuki Kataoka, Tasuku Watanabe, Ryo Kamitani, Kazunori Fujiwara   +5 more
doaj   +2 more sources

Objective preclinical measures for bone conduction implants [PDF]

Frontiers in Neuroscience
The study evaluates the accuracy of predicting intracochlear pressure during bone conduction stimulation using promontory velocity and ear canal pressure, as less invasive alternatives to intracochlear pressure.
Irina Wils, Alexander Geerardyn, Alexander Geerardyn, Tristan Putzeys, Tristan Putzeys, Guy Fierens, Guy Fierens, Guy Fierens, Kathleen Denis, Nicolas Verhaert, Nicolas Verhaert   +10 more
doaj   +2 more sources

Safe electrical stimulation of the cochlear nerve at the promontory during functional magnetic resonance imaging [PDF]

Magnetic Resonance in Medicine, 1999
The purpose of this study was to evaluate possibilities and technical risks for combining intended electrical stimulation of the cochlear nerve and functional magnetic resonance imaging (fMRI). Theoretical considerations and experiments indicate that fMRI can be performed safely during electrical stimulation.
B P Weber
exaly   +3 more sources

Electrical promontory stimulation test using a portable peripheral nerve stimulator with an ear canal electrode

Auris Nasus Larynx
An intact cochlear nerve is necessary for successful cochlear implantation (CI). Although the promontory stimulation test (PST) using a promontory stimulator (PS) and a transtympanic needle electrode is invasive, it is still commonly used to verify cochlear nerve function.
Akira Ganaha, Takeshi Nakamura, Tetsuya Toño   +2 more
exaly   +7 more sources

Intracranial Pressure and Promontory Vibration With Soft Tissue Stimulation in Cadaveric Human Whole Heads [PDF]

Otology and Neurotology, 2016
HYPOTHESIS: Intracranial pressure and skull vibrations are correlated and depend on the stimulation position and frequency. BACKGROUND: A hearing sensation can be elicited by vibratory stimulation on the skin covered skull, or by stimulation on soft tissue such as the neck. It is not fully understood whether different stimulation sites induce the skull
Christof Roosli, Ivo Dobrev, Alexander Huber   +2 more
exaly   +5 more sources

Correlation of Promontory Vibration and Sound Emission Recorded from the Skin Surface in Bone Conduction Stimulation. [PDF]

J Assoc Res Otolaryngol
Abstract Purpose Sound pressure recordings at different positions at the head such as ear canal, nasal cavity, or on the skin are effective tools to verify, fit, or follow up the output of bone conduction devices (BCDs) intra- and post-operatively. Here, we investigated the possibility of using
Ghoncheh M, Maas P, Prenzler N, Salcher RB, Lenarz T, Maier H.   +5 more
europepmc   +3 more sources

Investigation of bone conduction stimulation efficiency on the skull surface and below assessed by cochlear promontory vibration

Hearing Research
Stimulation sites closer to the cochlea result in higher output for bone conduction devices (BCD), increasing maximum output and reducing energy consumption. In our study, alternative coupling sites closer to the ear canal (EC), in cortical and spongious bone, were investigated and the influence on ipsi- and contralateral bone conduction output was ...
Hannes Maier, Alexander du Puits, Thomas Lenarz   +2 more
exaly   +3 more sources