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Comparison of cone beam and multidetector scanner irradiation for ear imaging

Published online by Cambridge University Press:  05 September 2025

Anne-Line Mutschler Open the ORCID record for Anne-Line Mutschler [Opens in a new window] ,
Mathilde Diot-Vaschy ,
Eleonore Brumpt ,
Joackim Mahdjoub ,
Riham Altaisan  and
Laurent Tavernier
Anne-Line Mutschler*
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, Université Marie-et-Louis-Pasteur, CHU Besançon, Besançon, France
Mathilde Diot-Vaschy
Affiliation:
Department of Radiology, CHU Besançon, Besançon, France
Eleonore Brumpt
Affiliation:
Department of Radiology, Université Marie-et-Louis-Pasteur, CHU Besançon, Besançon, France
Joackim Mahdjoub
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, Université Marie-et-Louis-Pasteur, CHU Besançon, Besançon, France
Riham Altaisan
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, CHU Besançon, Besançon, France Department of Otorhinolaryngology, Head and Neck Surgery, King Faisal University, Al-Ahsa, Saudi Arabia
Laurent Tavernier
Affiliation:
Department of Otorhinolaryngology - Head and Neck Surgery, Université Marie-et-Louis-Pasteur, CHU Besançon, Besançon, France
*
Corresponding author: Anne-Line Mutschler; Email: al.mutschler@gmail.com
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Abstract

Background

Temporal bone computed tomography delivers a relatively high radiation dose. Cone beam computed tomography could be a promising alternative, offering good performance with reduced radiation exposure. This study aimed to compare the irradiation during temporal bone imaging using computed tomography versus cone beam computed tomography.

Materials and methods

We conducted a single-centre prospective study evaluating dosimetric data collected from patients undergoing temporal bone imaging via computed tomography or cone beam computed tomography. Absorbed doses (milligrays) were measured using mini-dosimeters placed on key anatomical sites: eyes, ears, lower neck and pubic region, and compared between the two imaging modalities.

Results

CBCT significantly reduced radiation, with absorbed doses being two to six times lower than those observed with conventional computed tomography, depending on the measured sites.

Conclusion

Our findings align with existing literature, confirming the reduced irradiation with cone beam computed tomography in ear imaging. Further studies are warranted to evaluate image quality relative to radiation dose between the two techniques.

Keywords

cochlear implantcomputed tomographycone beamimaginginner earirradiationotologyradiology

Information

Type
Main Article
Information
The Journal of Laryngology & Otology , Volume 139 , Issue 12 , December 2025 , pp. 1177 - 1180
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of J.L.O. (1984) LIMITED.

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Footnotes

Anne-Line Mutschler takes responsibility for the integrity of the content of the paper

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