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Detection of Electrode Proximity to the Cochlea Wall Based on Impedance Variation: a Preliminary Computational Study

Salkim, E; Zamani, M; Jiang, D; Demosthenous, A; (2020) Detection of Electrode Proximity to the Cochlea Wall Based on Impedance Variation: a Preliminary Computational Study. In: Proceedings of UKSim-AMSS 22nd International Conference on Modelling & Simulation. UKSims: Cambridge, UK. Green open access

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Abstract

The electro anatomy of the cochlea plays a crucial role in hearing, where damage to the cochlea may cause hearing loss. Cochlear implants provide hearing to severe or profound hearing-impaired individuals. The accurate insertion of electrodes into the cochlea is important. If misplaced it may lead to further damage (insertion trauma). Visual inspection of the electrode array insertion is limited and relies on the experience of the surgeon. Assisted real time guidance in positioning the electrode array in the cochlea during insertion is needed. Using an advanced computational model of the cochlea accounting for different tissue layers, impedance variations at different electrode distances from the cochlear wall were simulated. Preliminary simulations suggest that the variations may be used to detect the proximity of the electrodes to the cochlea wall.

Type: Proceedings paper
Title: Detection of Electrode Proximity to the Cochlea Wall Based on Impedance Variation: a Preliminary Computational Study
Event: UKSim-AMSS 22nd International Conference on Modelling & Simulation
Location: Cambridge
Dates: 25 March 2020 - 27 March 2020
Open access status: An open access version is available from UCL Discovery
Publisher version: http://uksim2020.info/
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Cochlear implant, computational models, electrode proximity, impedance measurement.
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10095099
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