ArticleThe journal of international advanced otology2020
New Classification of Cochlear Hypoplasia Type Malformation: Relevance in Cochlear Implantation.
Article in The journal of international advanced otology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 7 citations in OpenAlex.
- The Chronological Evolution of Cochlear Implant Contraindications: A Comprehensive Review.Journal of clinical medicine · 2024Review
- Scala vestibuli cochlear implant supported by 3D modeling of the inner ear.Wiener klinische Wochenschrift · 2022Article
- A novel method of identifying inner ear malformation types by pattern recognition in the mid modiolar section.Scientific reports · 2021Article
- Embryology, Malformations, and Rare Diseases of the Cochlea.Laryngo- rhino- otologie · 2021Article
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Authors and funding
2 authors at 2 institutions in 2 countries.
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Abstract
objectivesThis paper attempts to create a new classification type of cochlear hypoplasia (CH)-type malformation taking into consideration of vestibular section and internal auditory canal (IAC). MATERIALS AND
methodsPreoperative computed-tomography (CT) scans of cochlear implant (CI) candidates (N=31) from various clinics across the world with CH type malformation were taken for analysis. CT dataset were loaded into 3D-slicer freeware for three-dimensional (3D) segmentation of the inner-ear by capturing complete inner-ear structures from the entire dataset. Cochlear size in terms of diameter of available cochlear basal turn and length of cochlear lumen was measured from the dataset. In addition, structural connection between IAC and cochlear portions was scrutinized, which is highly relevant to the proposed CH classification in this study.
resultsCH group-I has the normal presence of IAC leading to cochlear and vestibular portions, whereas CH group-II is like CH group-I but with some degree of disruption in vestibular portion. In CH group-III, a disconnection between IAC and the cochlear portion irrespective of other features. Within all these three CH groups, the basal turn diameter varied between 3.1 mm and 9.6 mm, and the corresponding cochlear lumen length varied between 3 mm and 21 mm for the CI electrode array placement.
conclusionA new classification of CH mainly based on the IAC connecting the cochlear and vestibular portions is presented in this study. CI electrode array length could be selected based on the length of the cochlear lumen, which can be observed from the 3D image.
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