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Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function?
Cochlear duct length (CDL) measurement or estimation is a hot topic for various research groups in the cochlear implant (CI) field as of today. Getting the CDL along the outer wall (LW) and organ of corti (OC) is possible but considering the clinical application especially in the selection of the el...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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KeAi Publishing
2018
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6617526/ https://www.ncbi.nlm.nih.gov/pubmed/31334491 http://dx.doi.org/10.1016/j.wjorl.2018.09.004 |
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author | Dhanasingh, Anandhan |
author_facet | Dhanasingh, Anandhan |
author_sort | Dhanasingh, Anandhan |
collection | PubMed |
description | Cochlear duct length (CDL) measurement or estimation is a hot topic for various research groups in the cochlear implant (CI) field as of today. Getting the CDL along the outer wall (LW) and organ of corti (OC) is possible but considering the clinical application especially in the selection of the electrode array length and applying Greenwood's frequency function, we need to have a clear understanding on the CDL in general and as well on the Greenwood's frequency function. It is very clear from the histology images of the cochlea with straight electrode inside, that the electrode locates itself right under the basilar membrane. Also the Greenwood's frequency function involves a variable that corresponds to the CDL at the basilar membrane/organ of corti level. This brings us to conclude that the CDL at the OC is relevant for the selection of electrode array length and in applying Greenwood's frequency function. The ratio between CDL (LW) and CDL (OC) is 0.9 which is a very important number that needs to be remembered when converting CDL (LW) to CDL (OC). |
format | Online Article Text |
id | pubmed-6617526 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | KeAi Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-66175262019-07-22 Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? Dhanasingh, Anandhan World J Otorhinolaryngol Head Neck Surg Review Article Cochlear duct length (CDL) measurement or estimation is a hot topic for various research groups in the cochlear implant (CI) field as of today. Getting the CDL along the outer wall (LW) and organ of corti (OC) is possible but considering the clinical application especially in the selection of the electrode array length and applying Greenwood's frequency function, we need to have a clear understanding on the CDL in general and as well on the Greenwood's frequency function. It is very clear from the histology images of the cochlea with straight electrode inside, that the electrode locates itself right under the basilar membrane. Also the Greenwood's frequency function involves a variable that corresponds to the CDL at the basilar membrane/organ of corti level. This brings us to conclude that the CDL at the OC is relevant for the selection of electrode array length and in applying Greenwood's frequency function. The ratio between CDL (LW) and CDL (OC) is 0.9 which is a very important number that needs to be remembered when converting CDL (LW) to CDL (OC). KeAi Publishing 2018-12-29 /pmc/articles/PMC6617526/ /pubmed/31334491 http://dx.doi.org/10.1016/j.wjorl.2018.09.004 Text en © 2018 The Author http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Review Article Dhanasingh, Anandhan Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title | Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title_full | Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title_fullStr | Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title_full_unstemmed | Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title_short | Cochlear duct length along the outer wall vs organ of corti: Which one is relevant for the electrode array length selection and frequency mapping using Greenwood function? |
title_sort | cochlear duct length along the outer wall vs organ of corti: which one is relevant for the electrode array length selection and frequency mapping using greenwood function? |
topic | Review Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6617526/ https://www.ncbi.nlm.nih.gov/pubmed/31334491 http://dx.doi.org/10.1016/j.wjorl.2018.09.004 |
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