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Updated: Aug 23, 2026
Enhancing Electrode Location Assessment in Cochlear Implantation via Computed Tomography Image Fusion
Published on: January 17, 2025
MRI versus CT in assessment of cochlear patency in cochlear implant candidates
Robert Bettman1, Erik Beek, Adriaan Van Olphen
1Department of Otorhinolaryngology, University Medical Centre Utrecht, Utrecht, The Netherlands. RBettman@knmg.nl
Objective:
To investigate how cochlear patency as seen on preoperative CT and MRI scans correlates with findings at surgery in cochlear implant patients.
Material And Methods:
CT and MRI scans of 25 patients were reviewed by 3 independent observers. The reviewers classified the cochlear patency and recorded the location of any suspected decrease in patency. Their results were compared with the findings noted during surgery.
Results:
Decreased cochlear patency was found in six patients at surgery. The mean sensitivity/specificity of CT and MRI assessment was 33%/88% and 41%/91%, respectively.
Conclusion:
Our study suggests that CT, using axial and semi-longitudinal planes, is equivalent to MRI in predicting cochlear patency.
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01:14Imaging Studies I: CT and MRI
Description of the Procedures
Computed Tomography (CT) scan:
Computed Tomography (CT) scans use X-ray technology to generate detailed images of bones, organs, and tissues. During the scan, the patient lies on a moving table...
01:24Magnetic Resonance Imaging