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A new magnetic resonance imaging scoring system for perilymphatic space appearance after intratympanic gadolinium injection, and its clinical application

Published online by Cambridge University Press:  07 February 2012

Z-M Fang
Affiliation:
Department of Imaging, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
X Chen*
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
X Gu
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
Y Liu
Affiliation:
Department of Imaging, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
R Zhang
Affiliation:
Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
D-R Cao
Affiliation:
Department of Imaging, First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian Province, People's Republic of China
H-G He
Affiliation:
Alice Lee Centre for Nursing Studies, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
*
Address for correspondence: Dr Xi Chen, Department of Otolaryngology-Head and Neck Surgery, First Affiliated Hospital of Fujian Medical University, 20 Cha Zhong Road, Tai Jiang District, Fuzhou 350005, Fujian Province, PR China Fax: +86 591 83318716 E-mail: [email protected]

Abstract

Objective:

To establish a new magnetic resonance imaging scoring system for diagnosing endolymphatic hydrops.

Patients and methods:

A total of 214 ears of 107 patients were categorised into five groups: no symptoms, Ménière's disease, sudden deafness, delayed endolymphatic hydrops and other ear disorders. Gadolinium distribution within the labyrinth was scored separately and quantitatively by two radiologists. Multiple independent-sample non-parametric tests, Bayesian discriminant analysis, multivariate logistic regression and receiver operating characteristic curve analyses were performed.

Results:

The derived scoring model was highly accurate for diagnosing Ménière's disease and delayed endolymphatic hydrops. Two magnetic resonance imaging scoring methods for the perilymphatic space were proposed for the diagnosis of endolymphatic hydrops: a pre-1 value (a new variable that predicts individual probability) of more than 0.3982299, or a sum of all labyrinth component scores of less than 14.5.

Conclusion:

A convenient method is proposed which offers reliable radiological diagnostic criteria for Ménière's disease and delayed endolymphatic hydrops.

Type
Main Articles
Copyright
Copyright © JLO (1984) Limited 2012

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