Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Computer-generated three-dimensional reconstruction of the cochlea.

L Ariyasu1, F R Galey, R Hilsinger

  • 1Department of Otolaryngology, Kaiser Permanente Medical Center, Oakland, CA 94611.

Otolaryngology--Head and Neck Surgery : Official Journal of American Academy of Otolaryngology-Head and Neck Surgery
|February 1, 1989
PubMed
Summary

Computer models of cochlear nerve fibers reveal the spiral ganglion is significantly shorter than the organ of Corti. This finding informs optimal cochlear implant electrode length to prevent damage.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Stapes surgery in a residency training program.

The Laryngoscope·1999
Same author

Endoscopic Zenker's diverticulotomy (Dohlman procedure): forty cases reviewed.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery·1997
Same author

Bell's palsy treatment with acyclovir and prednisone compared with prednisone alone: a double-blind, randomized, controlled trial.

The Annals of otology, rhinology, and laryngology·1996
Same author

Uvulectomy in the office setting.

Ear, nose, & throat journal·1995
Same author

Aneurysmal bone cyst of the mandible.

The Annals of otology, rhinology, and laryngology·1993
Same author

Audiometric comparison of Lassa fever hearing loss and idiopathic sudden hearing loss: evidence for viral cause.

Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery·1992

Area of Science:

  • Otolaryngology
  • Neuroscience
  • Biomedical Engineering

Background:

  • The organ of Corti and spiral ganglion are key structures in auditory processing.
  • Cochlear implants aim to stimulate the auditory nerve via electrodes placed within the cochlea.
  • Understanding the precise anatomy of the cochlear nerve is crucial for effective cochlear implant design.

Purpose of the Study:

  • To determine the optimal maximal length for cochlear implant electrodes.
  • To analyze the three-dimensional structure of nerve fibers from the organ of Corti to the spiral ganglion.
  • To correlate anatomical findings with potential cochlear implant-related damage.

Main Methods:

  • Computer-generated three-dimensional reconstructions of nerve fibers.
  • Analysis of the spatial relationship between the organ of Corti and the spiral ganglion.

Related Experiment Videos

  • Measurement of the turns and extent of both structures.

    • Main Results:

    • The spiral ganglion (1 3/4 turns) is shorter and more basal than the organ of Corti (2 3/4 turns).
    • Spiral ganglion dendrites project radially in the basal turn and become oblique apically.
    • The spiral ganglion's organization dictates the cochlear nerve's overall structure.

    Conclusions:

    • The anatomical differences between the spiral ganglion and organ of Corti are significant for electrode placement.
    • Shorter cochlear implant electrodes may be optimal to avoid damaging the spiral ganglion.
    • These findings have direct implications for reducing cochlear implant complications.