H2020Индивидуална стипендия2017–2019

CIModelPLUS · Advanced Computational Model for the Development of Cochlear Implants

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2017-03-01 → 2019-02-28
Финансиране от ЕС: 159 461 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Кохлеарните импланти се изследват чрез създаването на по-точен компютърен модел на охлючето в ухото. Това помага за разработването на нови устройства, които да подобрят разпознаването на реч при шум.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Advanced Computational Model for the Development of Cochlear Implants

Cochlear implants (CIs) are surgically-implantable biomedical devices that bypass the sensory hair cells and directly excite the remaining fibres of the auditory nerve with electric current. They are capable of restoring a high degree of auditory perception to patients that are severe-to-profoundly deaf. Up to the year of 2012, there were more than 325,000 CI recipients all over the world, and more than 100,000 CI users in Europe, which were about 200 implanted patients per million inhabitants. However, this only accounts for 7% of all adults with hearing impairment that could benefit from a CI in Europe. CI users usually regain the ability to understand and use spoken language with or without visual aid. However, there remains a wide variation of individual in speech recognition performance after implantation, and the ability of implant users to understand speech diminishes in the presence of background noise. Computational models of the cochlea and sensory neurons have been employed to facilitate the development of CIs via exploring various aspects of electrical stimulation. These models depend on the geometry of the reconstructed cochlea and the exact knowledge of the electrical impedance of different tissues. However, only crude estimation of the impedance of all media is available. Moreover, most existing computational models of the cochlea only adopt an ideal representation of the geometry due to limitations in structural image resolution or in computational expenses. The aim of CIModelPLUS was to provide engineers an advanced computational model of the cochlea that facilitates the development of next-generation CI. To fulfil the aim of CIModelPLUS, the following objectives were included: 1. development of anatomically-accurate computational model of cochlea; 2. measurement of the electric current distribution; 3. generation of the advanced computational model. All milestones defined for CIModelPLUS have been reached.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Cochlear implants (CIs) are proven effective in restoring hearing to the severe-to-profoundly deaf. Up to 2012, there were more than 100,000 CI users in Europe, which only accounts for 7% of all adult CI candidates. The most severe limitation of current CI technology is caused by the wide spread of electric current in the cochlea, which results in a poor spectral resolution of electrical stimulation of the nerve and limits the number of effective electrodes. Computational models of the cochlea have been used to facilitate the development of CIs. These models depend on the geometry of the reconstructed cochlea and the exact knowledge of the electrical impedances of different tissues. However, only crude estimation of the impedances of all media is available, and most computational models of the cochlea only adopted an ideal representation of the geometry. Therefore, CIModelPLUS aims to provide engineers an advanced computational model of the cochlea with incorporated CI, which will show improved accuracy of the electric current distribution in the tissues, in order to facilitate the development of next-generation CIs. To fulfil this aim, computational models of cochleae will be reconstructed from the µ-CT scans of temporal bone specimens, and the electric current distribution inside the cochlea will also be measured experimentally. The simulation and experimental results will later be combined to develop the advanced computational model of the cochlea. CIModelPLUS involves interdisciplinary research between engineering, physics, neuroscience and medicine, and intersectoral collaboration between academia and CI industry. It will lead to the future development of CIs due to the accurate and validated computational approach adopted, and the advancement of CI technology will improve the quality of life of over 100,000 current CI users and other CI candidates in Europe, as well as that of their families and the communities that they reside in.

Оригинален текст от CORDIS (на английски).

Участници

TECHNISCHE UNIVERSITAET MUENCHEN · MuenchenКоординаторГермания