Evidence map›Paper›PMID 31165284›Full record

ArticleJournal of the Association for Research in Otolaryngology : JARO2019

Virtual Rhesus Labyrinth Model Predicts Responses to Electrical Stimulation Delivered by a Vestibular Prosthesis.

Abderrahmane Hedjoudje, Russell Hayden, Chenkai Dai, JoongHo Ahn, Mehdi Rahman, Frank Risi, Jiangyang Zhang, Susumu Mori, Charles C Della Santina

Open access · greenAbstract readValidation Study
In one paragraph

Article in Journal of the Association for Research in Otolaryngology : JARO, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.0field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 22 citations in OpenAlex.

  1. Vestibular Implant Imaging.AJNR. American journal of neuroradiology · 2021
    Trial
  2. Effects of Electrode Position on Vestibular Implant Performance in Rhesus Macaque.Journal of the Association for Research in Otolaryngology : JARO · 2026
    Article
  3. Exploring the role of the electrically evoked Vestibulo-Ocular reflex in vestibular implant surgery.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Article
  4. Vestibular electrode position stability over time.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2025
    Article
  5. Developing a Virtual Model of the Rhesus Macaque Inner Ear.Bioengineering (Basel, Switzerland) · 2024
    Article
  6. Optimizing vestibular implant electrode positioning using fluoroscopy and intraoperative CT imaging.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2024
    Article
  7. Article
  8. The Next Challenges of Vestibular Implantation in Humans.Journal of the Association for Research in Otolaryngology : JARO · 2023
    Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Vestibular Implant Surgery: How to Deal With Obstructed Semicircular Canals-A Diagnostic and Surgical Guide.Journal of otolaryngology - head & neck surgery = Le Journal d'oto-rhino-laryngologie et de chirurgie cervico-faciale
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 2 countries.

Abderrahmane HedjoudjeDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA. ahedjou1@jhmi.edu.ORCID 0000-0003-1081-9645
Russell HaydenDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA.
Chenkai DaiDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA.
JoongHo AhnDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA.
Mehdi RahmanDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA.
Frank RisiCochlear Ltd., Sydney, Australia.
Jiangyang ZhangRadiology Department, Johns Hopkins School of Medicine, Baltimore, MD, USA.
Susumu MoriRadiology Department, Johns Hopkins School of Medicine, Baltimore, MD, USA.
Charles C Della SantinaDepartment of Otolaryngology, Johns Hopkins School of Medicine Vestibular NeuroEngineering Lab, 601 North Caroline Street, Suite 6253, Baltimore, MD, 21287, USA.
Johns Hopkins University · USCochlear (Australia) · AU

Funding

TR&D 4: Revealing Microstructure: Biophysical modeling and validation for discovery and clinical careP41EB017183 · NIBIB · NEW YORK UNIVERSITY SCHOOL OF MEDICINE · PI Christopher M Collins · 2014 to 2026
$19.3M
The Physiology of Vestibular CompensationR01DC002390 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI Kathleen E Cullen · 1995 to 2026
$10.7M
Electrical Stimulation to Restore Three Dimensional Vestibular SensationR01DC009255 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI DELLA SANTINA, CHARLES C · 2008 to 2018
$5.7M
Multichannel Vestibular Prosthesis Pilot Early Feasibility TrialR01DC013536 · NIDCD · JOHNS HOPKINS UNIVERSITY · PI DELLA SANTINA, CHARLES C · 2013 to 2017
$2.4M
NIBIB NIH HHS P41 EB017183NIDCD NIH HHS R01 DC002390NIDCD NIH HHS R01 DC009255NIDCD NIH HHS R01 DC013536NIH HHS R01DC009255
6 · The paper itself

Abstract

To better understand the spread of prosthetic current in the inner ear and to facilitate design of electrode arrays and stimulation protocols for a vestibular implant system intended to restore sensation after loss of vestibular hair cell function, we created a model of the primate labyrinth. Because the geometry of the implanted ear is complex, accurately modeling effects of prosthetic stimuli on vestibular afferent activity required a detailed representation of labyrinthine anatomy. Model geometry was therefore generated from three-dimensional (3D) reconstructions of a normal rhesus temporal bone imaged using micro-MRI and micro-CT. For systematically varied combinations of active and return electrode location, the extracellular potential field during a biphasic current pulse was computed using finite element methods. Potential field values served as inputs to stochastic, nonlinear dynamic models for each of 2415 vestibular afferent axons, each with unique origin on the neuroepithelium and spiking dynamics based on a modified Smith and Goldberg model. We tested the model by comparing predicted and actual 3D vestibulo-ocular reflex (VOR) responses for eye rotation elicited by prosthetic stimuli. The model was individualized for each implanted animal by placing model electrodes in the standard labyrinth geometry based on CT localization of actual implanted electrodes. Eye rotation 3D axes were predicted from relative proportions of model axons excited within each of the three ampullary nerves, and predictions were compared to archival eye movement response data measured in three alert rhesus monkeys using 3D scleral coil oculography. Multiple empirically observed features emerged as properties of the model, including effects of changing active and return electrode position. The model predicts improved prosthesis performance when the reference electrode is in the labyrinth's common crus (CC) rather than outside the temporal bone, especially if the reference electrode is inserted nearly to the junction of the CC with the vestibule. Extension of the model to human anatomy should facilitate optimal design of electrode arrays for clinical application.

Indexed as

Electric StimulationElectrodes, ImplantedModels, TheoreticalAnimalsEar, InnerFemaleMacaca mulattaMalefinite elementinner earlabyrinthmonkeyrhesusvestibularvestibular implantvestibular prosthesis

Identifiers

PMID31165284
PMCPMC6646509
OpenAlexW2948798043

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.