Hostname: page-component-848d4c4894-8kt4b Total loading time: 0 Render date: 2024-06-15T18:55:31.876Z Has data issue: false hasContentIssue false
  • English
  • Français

Cochlear measurement in computed tomography and magnetic resonance imaging data sets by the Otoplan measurement tool: a retrospective comparative study

Published online by Cambridge University Press:  19 February 2024

Martin Sylvester Otte Open the ORCID record for Martin Sylvester Otte [Opens in a new window] ,
Verena Mueller ,
Pauline Burkhardt ,
Christoph Hans-Juergen Endler ,
Jens Peter Klussmann ,
Jan Christoffer Luers ,
Maria Grosheva  and
Ruth Lang-Roth
Martin Sylvester Otte*
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Verena Mueller
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Pauline Burkhardt
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Christoph Hans-Juergen Endler
Affiliation:
Department of Diagnostic and Interventional Radiology, University Hospital Bonn, Bonn, Germany
Jens Peter Klussmann
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Jan Christoffer Luers
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Maria Grosheva
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
Ruth Lang-Roth
Affiliation:
Department of Otorhinolaryngology, Head and Neck Surgery, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
*
Corresponding author: Martin Sylvester Otte; Email: martin.otte@uk-koeln.de
Get access Rights & Permissions [Opens in a new window]

Abstract

Background

Using Otoplan software, it is possible to measure the cochlea before cochlear implant surgery. Until now, computed tomography (CT) of the cochlea has been necessary for this purpose. The aim of this study was to find out whether measuring the cochlea with magnetic resonance imaging (MRI) using Otoplan is possible with the same accuracy.

Methods

The cochlea of 44 patients of the local cochlear implant centre was measured by Otoplan using high-resolution CT-bone and MRI images, and the determined lengths were compared.

Results

No significant difference was found between the cochlear lengths measured, regardless of whether the length measurement was based on a CT or an MRI data set.

Conclusion

For the determination of cochlear length prior to cochlear implant surgery, MRI images are just as suitable as CT images, therefore CT is not mandatory for length measurement by Otoplan, which could reduce the patient's radiation exposure.

Keywords

Cochlear implantsinner earcochlear implantationhearing losssensorineural hearing loss
Type
Main Article
Information
The Journal of Laryngology & Otology , First View , pp. 1 - 5
Copyright
Copyright © The Author(s), 2024. Published by Cambridge University Press on behalf of J.L.O. (1984) LIMITED

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Footnotes

Martin Sylvester Otte takes responsibility for the integrity of the content of the paper

References

Dhanasingh, A. Research software in cochlear duct length estimation, Greenwood frequency mapping and CI electrode array length simulation. World J Otorhinolaryngol – Head Neck Surg 2021;7:17–22Google Scholar
Lovato, A, Marioni, G, Gamberini, L, Bonora, C, Genovese, E, de Filippis, C. OTOPLAN in cochlear implantation for far-advanced otosclerosis. Otol Neurotol 2020;41:e1024Google Scholar
Ricci, G, Lapenna, R, Gambacorta, V, Della Volpe, A, Faralli, M, Di Stadio, A. OTOPLAN, cochlear implant, and far-advanced otosclerosis: could the use of software improve the surgical final indication? J Int Adv Otol 2022;18:74–8Google Scholar
Greenwood, DD. A cochlear frequency-position function for several species—29 years later. J Acoust Soc Am 1990;87:2592–605Google Scholar
Chen, Y, Chen, J, Tan, H, Jiang, M, Wu, Y, Zhang, Z et al. Cochlear duct length calculation: comparison between using otoplan and curved multiplanar reconstruction in nonmalformed cochlea. Otol Neurotol. 2021;42:e875–80Google Scholar
Guirado, CR, Martínez, P, Roig, R, Mirosa, F, Salmerón, J, Florensa, F et al. Three-dimensional MR of the inner ear with steady-state free precession. AJNR Am J Neuroradiol 1995;16:1909–13Google Scholar
Biller, A, Bartsch, A, Knaus, C, Müller, J, Solymosi, L, Bendszus, M. Neuroradiological imaging in patients with sensorineural hearing loss prior to cochlear implantation [in German]. Rofo 2007;179:901–13CrossRefGoogle ScholarPubMed
Tanioka, H, Shirakawa, T, Machida, T, Sasaki, Y. Three-dimensional reconstructed MR imaging of the inner ear. Radiology 1991;178:141–4Google Scholar
Schurzig, D, Timm, ME, Batsoulis, C, Salcher, R, Sieber, D, Jolly, C et al. A novel method for clinical cochlear duct length estimation toward patient-specific cochlear implant selection. OTO Open 2018;2:2473974X18800238Google Scholar
Bland, JM, Altman, DG. Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1986;327:307–10CrossRefGoogle Scholar
Eser, MB, Atalay, B, Dogan, MB, Gündüz, N, Kalcioglu, MT. Measuring 3D cochlear duct length on MRI: is it accurate and reliable? AJNR Am J Neuroradiol 2021;42:2016Google Scholar
Nash, R, Otero, S, Lavy, J. Use of MRI to determine cochlear duct length in patients undergoing cochlear implantation. Cochlear Implants Int 2019;20:57–61CrossRefGoogle ScholarPubMed
Taeger, J, Müller-Graff, FT, Ilgen, L, Schendzielorz, P, Hagen, R, Neun, T et al. Cochlear duct length measurements in computed tomography and magnetic resonance imaging using newly developed techniques. OTO Open 2021;5:2473974X211045312Google Scholar
Weber, L, Kwok, P, Picou, EM, Wendl, C, Bohr, C, Marcrum, SC. Vermessung der Cochlea mittels eines Tablet-basierten Softwarepakets: Einfluss der Bildgebungsmodalität und des Untersucherhintergrunds. HNO 2022;70:769–77CrossRefGoogle Scholar
Thomas, JP, Klein, H, Haubitz, I, Dazert, S, Völter, C. Intra- and interrater reliability of CT- versus MRI-based cochlear duct length measurement in pediatric cochlear implant candidates and its impact on personalized electrode array selection. J Pers Med 2023;13:633Google Scholar
Aschendorff, A. Imaging in cochlear implant patients. GMS Curr Top Otorhinolaryngol Head Neck Surg 2011;10Google Scholar
Ellul, S, Shelton, C, Davidson, HC, Harnsberger, HR. Preoperative cochlear implant imaging: is magnetic resonance imaging enough? Otol Neurotol 2000;21:528–33Google Scholar
Paul, AB, Oklu, R, Saini, S, Prabhakar, AM. How much is that head CT? Price transparency and variability in radiology. J Am Coll Radiol 2015;12:453–7Google Scholar
Giacomuzzi, SM, Torbica, P, Rieger, M, Lottersberger, C, Peer, S, Peer, R et al. Radiation exposure in single slice and multi-slice spiral CT (a phantom study) [in German]. Rofo 2001;173:643–9Google Scholar
Neufang, KF, Zanella, FE, Ewen, K. Radiation doses to the eye lenses in computed tomography of the orbit and the petrous bone. Eur J Radiol 1987;7:203–5Google Scholar
Vogl, TJ, Tawfik, A, Emam, A, Naguib, NNN, Nour-Eldin, A, Burck, I et al. Pre-, intra- and post-operative imaging of cochlear implants. Rofo 2015;187:980–9Google Scholar
Joshi, VM, Navlekar, SK, Kishore, GR, Reddy, KJ, Kumar, ECV. CT and MR imaging of the inner ear and brain in children with congenital sensorineural hearing loss. RadioGraphics 2012;32:683–98CrossRefGoogle Scholar
Riemann, C, Scholtz, LU, Gehl, HB, Schürmann, M, Sudhoff, H, Todt, I. Evaluation of cochlear implant electrode scalar position by 3 Tesla magnet resonance imaging. Sci Rep 2021;11:21298Google Scholar