The Assessment of Endolymphatic Hydrops with High-resolution 3D Real Inversion Recovery and 3D Fluid Attenuated Inversion Recovery Sequences
نویسندگان
چکیده
Since the initial study by Nakashima et al. [1] who demonstrated that endolymphatic hydrops in patients with Ménière’s disease can be visualized using MR imaging following an intratympanic injection of gadolinium, this topic has gained strong clinical interest internationally [2–13]. The two most common sequences used in the evaluation of endolymphatic hydrops are a 3D Fluid Attenuated Inversion Recovery with variable flip angles turbo spin echo sequence (3D SPACE FLAIR) and a 3D real inversion recovery sequence (3D real IR) [1–3]. However, the use of the two sequences varies across different countries. The aim of this study was to compare and contrast the two sequences in terms of the imaging results to best determine their use in clinical practice.
منابع مشابه
Endolymphatic Hydrops Detected by 3-Dimensional Fluid-Attenuated Inversion Recovery MRI following Intratympanic Injection of Gadolinium in the Asymptomatic Contralateral Ears of Patients with Unilateral Ménière’s Disease
BACKGROUND The aim of this study was to identify the incidence of endolymphatic hydrops using 3-dimensional fluid-attenuated inversion recovery (3D-FLAIR) magnetic resonance imaging (MRI) in the contralateral ear in patients with unilateral Ménière's disease (MD). MATERIAL AND METHODS This was a prospective study. 3D-FLAIR MRI was performed with a 3 Tesla (3 T) unit 24 h after the intratympan...
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OBJECTIVE Endolymphatic hydrops has been well described in patients with Ménière's syndrome; however, causation has not been established. Decompression of the endolymphatic sac has been proposed as a means to relieve hydrops and improve vertigo symptoms, but the efficacy of the surgery is debated. Until recently, there have been few objective measures of efficacy other than patients' subjective...
متن کاملImaging of endolymphatic and perilymphatic fluid at 3T after intratympanic administration of gadolinium-diethylene-triamine pentaacetic acid.
By optimizing the inversion time of a 3D inversion-recovery turbo spin-echo sequence at 3T, we obtained separate images of endolymphatic and perilymphatic space 24 hours after intratympanic administration of gadolinium contrast material. In patients with Ménière disease, endolymphatic hydrops were detected not only in the cochlea but also in the vestibule. Fusion of the 2 types of images visual...
متن کاملCASE REPORT Secondary Endolymphatic Hydrops Following Sudden Deafness Detected by MRI after Intratympanic Administration of Gadolinium
the hydrops by image analyses. A 64 years-old female who showed partial recovery of hearing disturbance two months after the onset of sudden deafness underwent inner ear MRI in combination with intratympanic injection of gadolinium. Two-dimensional fluid-attenuated inversion recovery (2D-FLAIR) sequences taken by 3 tesla MR unit showed endolymphatic hydrops in the cochlea. Electrocochleogram co...
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