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Neuroradiology
Published in: Neuroradiology 10/2007

01-10-2007 | Head and Neck Radiology

The value of single-shot turbo spin-echo diffusion-weighted MR imaging in the detection of middle ear cholesteatoma

Authors: Bert De Foer, Jean-Philippe Vercruysse, Anja Bernaerts, Joachim Maes, Filip Deckers, Johan Michiels, Thomas Somers, Marc Pouillon, Erwin Offeciers, Jan W. Casselman

Published in: Neuroradiology | Issue 10/2007

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Abstract

Introduction

Single-shot (SS) turbo spin-echo (TSE) diffusion-weighted (DW) magnetic resonance imaging (MRI) is a non echo-planar imaging (EPI) technique recently reported for the evaluation of middle ear cholesteatoma. We prospectively evaluated a SS TSE DW sequence in detecting congenital or acquired middle ear cholesteatoma and evaluated the size of middle ear cholesteatoma detectable with this sequence. The aim of this study was not to differentiate between inflammatory tissue and cholesteatoma using SS TSE DW imaging.

Methods

A group of 21 patients strongly suspected clinically and/or otoscopically of having a middle ear cholesteatoma without any history of prior surgery were evaluated with late post-gadolinium MRI including this SS TSE DW sequence.

Results

A total of 21 middle ear cholesteatomas (5 congenital and 16 acquired) were found at surgery with a size varying between 2 and 19 mm. Hyperintense signal on SS TSE DW imaging compatible with cholesteatoma was found in 19 patients. One patient showed no hyperintensity due to autoevacuation of the cholesteatoma sac into the external auditory canal. Another patient showed no hyperintensity because of motion artifacts.

Conclusion

This study shows the high sensitivity of this SS TSE DW sequence in detecting small middle ear cholesteatomas, with a size limit as small as 2 mm.
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Metadata
Title
The value of single-shot turbo spin-echo diffusion-weighted MR imaging in the detection of middle ear cholesteatoma
Authors
Bert De Foer
Jean-Philippe Vercruysse
Anja Bernaerts
Joachim Maes
Filip Deckers
Johan Michiels
Thomas Somers
Marc Pouillon
Erwin Offeciers
Jan W. Casselman
Publication date
01-10-2007
Publisher
Springer-Verlag
Published in
Neuroradiology / Issue 10/2007
Print ISSN: 0028-3940
Electronic ISSN: 1432-1920
DOI
https://doi.org/10.1007/s00234-007-0268-3

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