ArticleHearing research2020
Morphometric linear and angular measurements of the human cochlea in implant patients using 3-dimensional reconstruction.
Article in Hearing research, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 14 citations in OpenAlex.
- Neural stem cell-loaded biohybrid hydrogel improves cochlear implants by electrode-neural coupling and neural regeneration.Theranostics · 2026Article
- Changes in the Neurovascular Unit in Meniere's Disease.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2025Article
- Morphometric Measurements of the Incomplete Partition Type II (IP-II) Cochlea and Implications on Cochlear Implantation.Otology & neurotology : official publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology · 2025Article
- Applications of visualizing cochlear basal turn in cochlear implantation.Laryngoscope investigative otolaryngology · 2023Article
- The Role of Imaging Investigations in Evaluation of Cochlear Dimensions in Candidates for Cochlear Implantation-Our Experience.Medicina (Kaunas, Lithuania) · 2023Observational
- Archival Human Temporal Bone: Anatomical and Histopathological Studies of Cochlear Implantation.Journal of personalized medicine · 2023Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
The present study is the first to evaluate the spiral ganglion neurons (SGNs) and the linear and angular measurements of the cochlea in temporal bones of cochlear implant (CI) recipients. There are no studies evaluating the morphometric measures in subjects after long-term CI use, and this study fills in this gap in current knowledge, greatly important for the design of CI electrodes. Amira based 3-D reconstructions of the cochlea were generated from stained histopathological slides of 15 celloidin-embedded human temporal bones. The SGN angular distance from the round window exhibited a narrow range from 684°-704°, corresponding to linear distances of 17.87 and 34.48 mm along the inner and outer wall of the scala tympani. The first turn measured an average of 14.21 mm along the inner wall and 23.92 mm along the outer wall. The outer wall average for the second turn was 11.11 mm and for the partial third apical turn was only 4.49 mm. The range for cochlear duct angular distance was 876° to 1051°, with a mean of 2.63 turns, corresponding to an average linear distance of 39.53 mm, ranging from 35.44 mm to 43.57 mm 6 out of 15 temporal bones demonstrated better preservation of SGN in the middle and apical segments of Rosenthal's canal. The present study demonstrates that the anatomy of the cochlea of CI patients does not differ significantly from that of normative subjects and establishes measurements using the round window as the 0° reference point, an important surgical landmark. The relevance of the measurements to cochlear implant design are discussed.
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