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Table of Contents
Vol. 15, No. 4, 2010
Issue release date: May 2010
Section title: Original Paper
Audiol Neurotol 2010;15:254–260
(DOI:10.1159/000258681)

Relationship between the Degree of Endolymphatic Hydrops and Electrocochleography

Yamamoto M.a · Teranishi M.a · Naganawa S.b · Otake H.a · Sugiura M.a, d · Iwata T.a · Yoshida T.a · Katayama N.a, c · Nakata S.a · Sone M.a · Nakashima T.a
Departments of aOtorhinolaryngology and bRadiology, Nagoya University Graduate School of Medicine, cDepartment of Nutrition and Food Science, Nagoya Women’s University, Nagoya, and dDepartment of Otorhinolaryngology, Kariya Toyota General Hospital, Kariya, Japan

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Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: January 09, 2009
Accepted: September 24, 2009
Published online: November 17, 2009
Issue release date: May 2010

Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 1

ISSN: 1420-3030 (Print)
eISSN: 1421-9700 (Online)

For additional information: http://www.karger.com/AUD

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.

© 2009 S. Karger AG, Basel


Article / Publication Details

First-Page Preview
Abstract of Original Paper

Received: January 09, 2009
Accepted: September 24, 2009
Published online: November 17, 2009
Issue release date: May 2010

Number of Print Pages: 7
Number of Figures: 5
Number of Tables: 1

ISSN: 1420-3030 (Print)
eISSN: 1421-9700 (Online)

For additional information: http://www.karger.com/AUD


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