Secondary Endolymphatic Hydrops Following Sudden Deafness Detected by MRI after Intratympanic Administration of Gadolinium

作者：Horii Arata^*; Miyabe Junji; Osaki Yasuhiro; Kitahara Tadashi; Imai Takao; Uno Atsuhiko; Nishiike Suetaka; Fujita Norihiko; Inohara Hidenori

来源：Journal of International Advanced Otology, 2011, 7(3): 425-429.

Objective of this report is to alert the existence of secondary endolymphatic hydrops at the beginning of the era for diagnosing 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 could not be performed due to high tone hearing loss. At present, inner ear MRI in combination with intratympanic injection of gadolinium has been mainly used for Meniere's patients to detect endolymphatic hydrops. However, this tool cannot distinguish the secondary hydrops as seen in our case from Meniere's disease and thus should be used with careful attention if used as a routine test for inner ear diseases.

• 出版日期2011