Jacobson's nerve clues to the round window niche

Todd, N. Wendell

doi:10.1002/cii.375

Cochlear Implants Int.

2009

DOI: 10.1002/cii.375

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Jacobson's nerve clues to the round window niche

N. Wendell Todd¹

Abstract: The round window niche is used as a primary guide to cochleostomy for cochlear implantation, but sometimes the niche is not

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Modeling of Auditory Neuron Response Thresholds with Cochlear Implants

Venail

Mura

Akkari

et al. 2015

BioMed Research International

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The quality of the prosthetic-neural interface is a critical point for cochlear implant efficiency. It depends not only on technical and anatomical factors such as electrode position into the cochlea (depth and scalar placement), electrode impedance, and distance between the electrode and the stimulated auditory neurons, but also on the number of functional auditory neurons. The efficiency of electrical stimulation can be assessed by the measurement of e-CAP in cochlear implant users. In the present study, we modeled the activation of auditory neurons in cochlear implant recipients (nucleus device). The electrical response, measured using auto-NRT (neural responses telemetry) algorithm, has been analyzed using multivariate regression with cubic splines in order to take into account the variations of insertion depth of electrodes amongst subjects as well as the other technical and anatomical factors listed above. NRT thresholds depend on the electrode squared impedance (β = −0.11 ± 0.02, P < 0.01), the scalar placement of the electrodes (β = −8.50 ± 1.97, P < 0.01), and the depth of insertion calculated as the characteristic frequency of auditory neurons (CNF). Distribution of NRT residues according to CNF could provide a proxy of auditory neurons functioning in implanted cochleas.

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Modeling of Auditory Neuron Response Thresholds with Cochlear Implants

Venail

Mura

Akkari

et al. 2015

BioMed Research International

View full text Add to dashboard Cite

show abstract

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Jacobson's nerve clues to the round window niche

Abstract: The round window niche is used as a primary guide to cochleostomy for cochlear implantation, but sometimes the niche is not

Cited by 1 publication

References 12 publications

Modeling of Auditory Neuron Response Thresholds with Cochlear Implants

Modeling of Auditory Neuron Response Thresholds with Cochlear Implants

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