التفاصيل البيبلوغرافية
| العنوان: |
Testing the Diagnostic Value of Electrical Ear Canal Stimulation in Cochlear Implant Candidates by Functional Magnetic Resonance Imaging. |
| المؤلفون: |
Neumann, Katrin, Preibisch, Christine, Spreer, Joachim, Raab, Peter, Hamm, John, Euler, Harald A., Lanfermann, Heinrich, Helbig, Silke, Kiefer, Jan |
| المصدر: |
Audiology & Neurotology; 2008, Vol. 13 Issue 5, p281-292, 12p, 2 Color Photographs, 3 Charts |
| مصطلحات موضوعية: |
ELECTRIC stimulation, EAR canal, COCHLEAR implants, COCHLEA surgery, MAGNETIC resonance imaging |
| مستخلص: |
Prior to cochlear implant (CI) surgery in children, the integrity of the auditory pathway is sometimes assessed by electrical ear canal stimulation (ECS). However, the evaluation of reactions as auditory is subjective. To test the prognostic value of ECS, functional magnetic resonance imaging (fMRI) was performed during ECS vicariously in 18 adult CI candidates. Activation of the primary auditory cortex was detected in 9 of 16 cases when auditory sensations during ECS occurred, and tended to be more bilaterally distributed in CI candidates than in normal-hearing controls. ECS sensations only tended to correlate with fMRI activations. However, solely frequency discrimination during electrical stimulation predicted CI outcome, but neither other auditory sensations nor fMRI activations did so satisfactorily, which limits the diagnostic value of these measures. Instead, preoperative residual hearing (nonamplified and amplified) was a robust predictor for CI benefit. Copyright © 2008 S. Karger AG, Basel [ABSTRACT FROM AUTHOR] |
|
Copyright of Audiology & Neurotology is the property of Karger AG and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) |
| قاعدة البيانات: |
Complementary Index |
