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Updated: Feb 27, 2026
Surgical Induction of Endolymphatic Hydrops by Obliteration of the Endolymphatic Duct
Published on: January 22, 2010
Influence of inversion time on endolymphatic hydrops evaluation in 3D-FLAIR imaging
Michael Eliezer1, André Gillibert2, Irène Tropres3
1Department of neuroradiology and MRI, SFRRMN neurosciences, Grenoble-Alpes university hospital,38000 Grenoble, France; Department of radiology, Rouen university hospital, 76100 Rouen, France.
Abstract:
The MRI evaluation of endolymphatic hydrops currently relies on inversion recovery sequences. Signal intensity of such sequences depends on the Inversion Time (TI) parameter. Here, we assessed endolymphatic compartment variation with two 3D-FLAIR sequences, closely similar except for the TI (2300 and 2400ms), in healthy volunteers and patients. We found that the semi-quantitative method of grading was highly dependent on the TI, contrasting with the recently proposed saccular-based grading of endolymphatic hydrops.
