Evidence map›Paper›PMID 41034637›Full record

ArticleEuropean 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 Surgery2026

The prediction of round window visibility at posterior-tympanotomy for cochlear implantation with "black bone" magnetic resonance imaging : Author lists.

Hoi Ming Kwok, Cameron Spence, Emily Hocknell, Irumee Pai, Steve Connor

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

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Hoi Ming KwokDepartment of Diagnostic and Interventional Radiology, Princess Margaret Hospital Kowloon West Cluster, Kowloon, Hong Kong SAR, China. hmkwok@cuhk.edu.hk.ORCID http://orcid.org/0000-0001-7628-1687
Cameron SpenceDepartment of Radiology, University Hospitals Dorset, Bournemouth, BH7 7DW, UK.
Emily HocknellDepartment of Ear, Nose and Throat Surgery, Guy's and St Thomas' Hospital, London, SE1 9RT, UK.
Irumee PaiDepartment of Ear, Nose and Throat Surgery, Guy's and St Thomas' Hospital, London, SE1 9RT, UK.
Steve ConnorSchool of Biomedical Engineering and Imaging Sciences, King's College London, London, SE1 7EH, UK.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeAlthough computed tomography (CT) can predict round window (RW) visibility at posterior tympanotomy pre-operatively, there is a trend towards the application of using magnetic resonance imaging (MRI) alone for cochlear implant (CI) planning. This study assessed the potential of a novel "Black Bone" (BB) MRI sequence to determine RW visibility during posterior tympanotomy.

methodsPatients underwent BB MRI as part of pre-operative CI planning. Two independent radiologists performed 5 landmark-based MRI measurements. RW visibility was recorded during posterior tympanotomy as > 50% or < 50% visibility. Patients with undefinable landmarks or absent surgical grading were excluded. Mann-Whitney U or t-tests compared MRI measurements to RW visibility whilst step wise logistic regression determined significant predictors.

results86 patients (40 male; median 10.5 years) and 129 implanted ears (43 unilateral, 43 bilateral; 52 adult, 77 paediatric) were evaluated. There were 109/129 ears with > 50% and 20/129 ears with < 50% RW visibility. The external auditory canal (EAC) angle was increased in paediatric patients with > 50% RW visibility (P = 0.033; AUROC 0.689; 73.4% sensitive, 69.2% specific with threshold 6.2

conclusionThe visibility of RW at posterior tympanotomy may be determined with pre-operative BB MRI. The optimal predictive measurements differ between adult and paediatric patients and there is superior performance in adults.

Indexed as

Cochlear ImplantationMagnetic Resonance ImagingRound Window, EarAdolescentAdultAgedChildChild, PreschoolFemaleHumansInfantMaleMiddle AgedTomography, X-Ray ComputedYoung AdultBlack bone magnetic resonance imagingCochlear implantationOtologyPre-operative imagingRound window

Identifiers

PMID41034637
PMCPMC12987836

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