잠시만 기다려 주세요. 로딩중입니다.

Anatomical and Pathological Findings of Magnetic Resonance Imaging in Idiopathic Sudden Sensorineural Hearing Loss

Journal of Audiology & Otology 2020년 24권 4호 p.198 ~ 203
김민범, 임지현, 문일준,
소속 상세정보
김민범 ( Kim Min-Bum ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Otorhinolaryngology-Head and Neck Surgery
임지현 ( Lim Ji-Hyun ) - Samsung Medical Center Center for Clinical Epidemiology
문일준 ( Moon Il-Joon ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Otorhinolaryngology-Head and Neck Surgery

Abstract


Background and Objectives: We sought to evaluate the diagnostic and prognostic value of measurable parameters of internal auditory canal (IAC) magnetic resonance imaging (MRI) in patients with idiopathic sudden sensorineural hearing loss (ISSNHL).

Subjects and Methods: We retrospectively reviewed the patients with ISSNHL who underwent IAC MRI from January 2008 to March 2019. Measurable parameters of IAC MRI, such as the diameter of the IAC, bony cochlear nerve canal, and cross-sectional area of the cochlear nerve, were measured by a single examiner. These parameters were then compared between the affected and healthy sides. Inner-ear abnormalities such as intralabyrinthine hemorrhage or labyrinthitis were also evaluated. The relationship between the surveyed parameters and the diagnosis of ISSNHL was assessed.

Results: A total of 208 patients with ISSNHL were included. The measured parameters of IAC MRI were not different between the affected and healthy sides and were also not associated with the diagnosis of ISSNHL. However, inner-ear abnormalities of IAC MRI in ISSNHL displayed a significant association with worse hearing before and after treatment. An age that was older than 40 years also correlated with poorer outcomes. Further, inner-ear abnormalities were more frequently detected when IAC MRI was performed early after ISSNHL onset.

Conclusions: Patients with ISSNHL and inner ear abnormalities such as intralabyrinthine hemorrhage or labyrinthitis identified via IAC MRI may experience poorer hearing outcomes. To detect such abnormal findings, it is recommended to perform IAC MRI early after the onset of ISSNHL.

키워드

Hearing loss; Sudden hearing loss; Magnetic resonance imaging; Labyrinth diseases; Labyrinthitis

원문 및 링크아웃 정보

등재저널 정보