| Titre : | The Use of Clinically Measurable Cochlear Parameters in Cochlear Implant Surgery as Indicators for Size, Shape, and Orientation of the Scala Tympani (2021) |
| Auteurs : | Daniel Schurzig ; Max E. Timm ; Omid Majdani ; Thomas Lenarz ; Thomas S. Rau |
| Type de document : | Article |
| Dans : | Ear and hearing (Vol. 42, n°4, Juillet- Aout 2021) |
| Article en page(s) : | p. 1034-1041 |
| Langues: | Anglais |
| Descripteurs : |
HE Vinci Implants cochléaires ; Pathologie cochléaireAutres descripteurs Transduction cochleaire |
| Résumé : |
Objectives: (1) To assess variations of the human intracochlear anatomy and quantify factors which might be relevant for cochlear implantation (CI) regarding surgical technique and electrode design. (2) Search for correlations of these factors with clinically assessable measurements.
Design: Human temporal bone study with micro computed tomography ([mu]CT) data and analysis of intracochlear geometrical variations: [mu]CT data of 15 fresh human temporal bones was generated, and the intracochlear lumina scala tympani (ST) and scala vestibuli were manually segmented using custom software specifically designed for accurate cochlear segmentation. The corresponding datasets were processed yielding 15 detailed, three-dimensional cochlear models which were investigated in terms of the scalae height, cross-sectional size, and rotation as well as the interrelation of these factors and correlations to others. Results: The greatest anatomical variability was observed within the round window region of the cochlea (basal 45[degrees]), especially regarding the cross-sectional size of the ST and its orientation relative to the scala vestibuli, which were found to be correlated (p Conclusion: While there is generally enough space within the ST for CI, strong intracochlear anatomical variations could be observed highlighting the relevance of both soft surgical technique as well as a highly flexible and self-adapting cochlear implant electrode array design. Cochlear dimensions (especially at the round window) could potentially be used to indicate surgically challenging anatomies. |
| Disponible en ligne : | Oui |
| En ligne : | https://login.ezproxy.vinci.be/login?url=https://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=yrovftx&AN=00003446-202107000-00025 |
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