Evidence map›Paper›PMID 42491621›Full record

ArticleLaryngoscope investigative otolaryngology2026

3D-Printed Electroanatomic Twins of Cadaveric Cochleae: A Platform for Cochlear Implant Testing.

Chloe Swords, Iwan Vaughan Roberts, Sita Tarini Clark, Filip Hrncirik, Botian Huang, François Guérit, Cecilia Brassett, Manohar L Bance

Abstract read
In one paragraph

Article in Laryngoscope investigative otolaryngology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

8 authors.

Chloe SwordsDepartment of Physiology, Development and Neuroscience University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0002-0431-4491
Iwan Vaughan RobertsDepartment of Clinical Neurosciences University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0003-0826-4142
Sita Tarini ClarkDepartment of Clinical Neurosciences University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0001-5595-6542
Filip HrncirikDepartment of Clinical Neurosciences University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0002-2286-848X
Botian HuangDepartment of Clinical Neurosciences University of Cambridge Cambridge UK.
François GuéritCambridge Hearing Group, MRC Cognition & Brain Sciences Unit University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0002-9404-3575
Cecilia BrassettDepartment of Physiology, Development and Neuroscience University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0003-3621-9445
Manohar L BanceDepartment of Clinical Neurosciences University of Cambridge Cambridge UK.ORCID https://orcid.org/0000-0001-8050-3617

Funding

Wellcome Trust
6 · The paper itself

Abstract

Objectives: Cochlear implants (CIs) can restore hearing to individuals with severe deafness, yet clinical outcomes vary widely because it remains difficult to predict how electrical currents interact with the unique anatomy of each cochlea. A central challenge in auditory rehabilitation is the lack of experimental systems that capture both the anatomical fidelity and the electrical properties of the human cochlea. To address this need, we developed electroanatomic twins: three-dimensional, 3D printed models of human cochleae that incorporate anatomically accurate features of the otic capsule and conductive biomimetic structures designed to reproduce tissue resistivity. Methods: Electroanatomic cochlea twins were generated from high resolution microCT scans of cadaveric specimens and from clinical CT scans, and they allowed reproducible, high-resolution mapping of voltage fields during CI stimulation. Results: These models reproduced intraoperative spread of current profiles with a root mean square error below 0.1 kΩ, closely matched cadaveric impedance spectra, and recapitulated spatial voltage distributions under monopolar, bipolar, and tripolar stimulation. Conclusion: By combining anatomical precision with electrical realism, electroanatomic twins provide a robust translational platform for systematic testing of electrode designs and programming strategies. This approach has the potential to guide individualized CI programming and thereby improve auditory outcomes, while also establishing a generalisable framework for modeling electroanatomic interactions that could accelerate the development of personalized bioelectronic therapies. Level of Evidence: Level 3.

Indexed as

3D printingadditive manufacturingauditory systemcochlear implantselectrodeshearing loss

Identifiers

PMID42491621
PMCPMC13378407

What OpenQuestion holds

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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.