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Related Experiment Video

Updated: May 13, 2026

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears

Published on: February 21, 2018

Can MRI replace CT in evaluating semicircular canal dehiscence?

P Browaeys¹, T L Larson, M L Wong

¹Department of Radiology, University Hospital, Lausanne, Switzerland. patrick.browaeys@skynet.be

AJNR. American Journal of Neuroradiology

|March 23, 2013

Summary

This summary is machine-generated.

Magnetic Resonance (MR) imaging with FIESTA sequences can accurately detect semicircular canal (SCC) dehiscence. A negative MR imaging result effectively rules out SCC dehiscence, potentially eliminating the need for CT scans.

Related Experiment Videos

Last Updated: May 13, 2026

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears

In Vivo Morphometric Analysis of Human Cranial Nerves Using Magnetic Resonance Imaging in Menière's Disease Ears and Normal Hearing Ears

Published on: February 21, 2018

Area of Science:

Radiology
Neuroimaging
Otolaryngology

Background:

Semicircular canal (SCC) dehiscence diagnosis often involves both CT and MR imaging.
Evaluating the utility of FIESTA-sequence MR imaging as a replacement for CT in diagnosing SCC dehiscence.

Purpose of the Study:

To assess if FIESTA MR imaging can replace temporal bone CT for SCC dehiscence evaluation.
To compare the diagnostic performance of FIESTA MR imaging against CT for SCC dehiscence.

Main Methods:

Retrospective review of 112 patients (224 ears) with vestibulocochlear symptoms.
Concurrent MR imaging (FIESTA sequence) and CT of the temporal bones were analyzed.
Two neuroradiologists evaluated for superior and posterior SCC dehiscence, with CT as the reference standard.

Main Results:

MR imaging demonstrated 100% sensitivity and 100% negative predictive value for both SSC and PSC dehiscence compared to CT.
Specificity for SSC dehiscence was 96.5%, and for PSC dehiscence was 99.1%.

Conclusions:

MR imaging with FIESTA sequences has high sensitivity and NPV, effectively excluding SCC dehiscence.
Negative MR imaging findings negate the need for CT in SCC dehiscence detection.
CT should be reserved for patients with positive MR imaging findings for SCC dehiscence.