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Relationship between the Degree of Endolymphatic Hydrops and Electrocochleography
Relationship between the Degree of Endolymphatic Hydrops and Electrocochleography
- Source :
- Audiology and Neurotology. 15:254-260
- Publication Year :
- 2009
- Publisher :
- S. Karger AG, 2009.
-
Abstract
- The purpose of this study was to evaluate the relationship between the endolymphatic space image obtained using magnetic resonance imaging (MRI) and the results of electrocochleography. Electrocochleography recordings were obtained from 25 ears of 24 patients, who underwent MRI 1 day after the intratympanic injection of gadolinium diethylenetriamine pentaacetic acid bismethylamide. The average summating potential to action potential (SP/AP) ratio in patients with significant endolymphatic hydrops in the cochlea was 54 ± 17%. However, in some patients who had significant endolymphatic hydrops in the cochlea, the SP/AP ratio was not enlarged. This may imply that elevation of the SP/AP ratio is related to not only the degree of endolymphatic hydrops but also to the persistence of hydrops.
- Subjects :
- Adult
Gadolinium DTPA
Male
medicine.medical_specialty
Physiology
Action Potentials
Contrast Media
Audiology
Speech and Hearing
Endolymphatic space
Imaging, Three-Dimensional
Image Processing, Computer-Assisted
medicine
Humans
Endolymphatic Hydrops
Endolymphatic hydrops
Meniere Disease
Aged
medicine.diagnostic_test
Pure tone
business.industry
Magnetic resonance imaging
Middle Aged
Electrocochleography
medicine.disease
Magnetic Resonance Imaging
Sensory Systems
Audiometry, Evoked Response
Cochlea
Cochlear hydrops
Otorhinolaryngology
Computer Science::Computer Vision and Pattern Recognition
Audiometry, Pure-Tone
Female
Nuclear medicine
business
Meniere's disease
Subjects
Details
- ISSN :
- 14219700 and 14203030
- Volume :
- 15
- Database :
- OpenAIRE
- Journal :
- Audiology and Neurotology
- Accession number :
- edsair.doi.dedup.....04938d8e59b8944104ab51120d839b1e
- Full Text :
- https://doi.org/10.1159/000258681