PMID- 32027202 OWN - NLM STAT- MEDLINE DCOM- 20210209 LR - 20210209 IS - 1651-2251 (Electronic) IS - 0001-6489 (Linking) VI - 140 IP - 5 DP - 2020 May TI - Magnetic resonance imaging of endolymphatic space in patients with sensorineural hearing loss: comparison between fluctuating and idiopathic sudden sensorineural hearing loss. PG - 345-350 LID - 10.1080/00016489.2020.1720919 [doi] AB - Background: Recently, 3-Tesla magnetic resonance imaging (MRI) after an intravenous gadolinium injection has been used to describe the endolymphatic space (ELS).Objectives: This study described the histopathological differences between idiopathic sudden sensorineural hearing loss (ISSNHL) and fluctuating sensorineural hearing loss (FSNHL) by examining the ELS. Additionally, the relationship between the affected cochlear and vestibular ELS/total fluid space (TFS) volume ratio and the duration from the onset to MRI in patients with FSNHL were evaluated.Material and methods: This study included 205 individuals without vertigo: 47 controls, 94 with ISSNHL, and 64 with FSNHL. The TFS and ELS volumes were measured and the ELS/TFS volume ratios (%) were evaluated.Results: The cochlear and vestibular ELS/TFS volume ratios of the affected ear in patients with FSNHL were significantly higher than that in those with ISSNHL. There was no correlation between the duration from FSNHL onset to the MRI scan in the affected cochlea and vestibule.Conclusion and significance: There were differences in the form of hearing fluctuation and the extended ELS volume between ISSNHL and FSNHL. ISSNHL cases with severe ELS extension were likely to change to FSNHL. FAU - Inui, Hiroshi AU - Inui H AD - Inui ENT Clinic, Nara, Japan. FAU - Sakamoto, Tsuyoshi AU - Sakamoto T AD - PixSpace Ltd., Fukuoka, Japan. FAU - Ito, Taeko AU - Ito T AD - Department of Otorhinolaryngology Head and Neck Surgery, Nara Medical University, Nara, Japan. FAU - Kitahara, Tadashi AU - Kitahara T AD - Department of Otorhinolaryngology Head and Neck Surgery, Nara Medical University, Nara, Japan. LA - eng PT - Comparative Study PT - Journal Article DEP - 20200206 PL - England TA - Acta Otolaryngol JT - Acta oto-laryngologica JID - 0370354 SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Case-Control Studies MH - Endolymphatic Duct/*diagnostic imaging MH - Endolymphatic Hydrops/*diagnostic imaging MH - Female MH - Hearing Loss, Sensorineural/*diagnostic imaging MH - Hearing Loss, Sudden/*diagnostic imaging MH - Humans MH - *Magnetic Resonance Imaging MH - Male MH - Middle Aged MH - Young Adult OTO - NOTNLM OT - Cochlear type of Meniere's disease OT - endolymphatic space OT - fluctuating sensorineural hearing loss OT - idiopathic sudden sensorineural hearing loss OT - magnetic resonance imaging OT - prognosis OT - volumetric measurement EDAT- 2020/02/07 06:00 MHDA- 2021/02/10 06:00 CRDT- 2020/02/07 06:00 PHST- 2020/02/07 06:00 [pubmed] PHST- 2021/02/10 06:00 [medline] PHST- 2020/02/07 06:00 [entrez] AID - 10.1080/00016489.2020.1720919 [doi] PST - ppublish SO - Acta Otolaryngol. 2020 May;140(5):345-350. doi: 10.1080/00016489.2020.1720919. Epub 2020 Feb 6.