感音神经性听力损失的MRI特征

MRI features of patients with sensorineural hearing loss

摘要:

感音神经性听力损失(SNHL)是耳科常见疾病，主要表现为听力损失伴或不伴耳鸣、眩晕、耳闷等症状，SNHL病因复杂多样，目前尚未有一个确切的病因。近年来磁共振影像技术(MRI)得到了较好的发展和运用，内听道MRI在显示软组织方面更具优势，可用来研究SNHL患者的内耳疾病，如研究小脑前下动脉来进一步阐述内耳微循环，轧造影显示梅尼埃病患者膜迷路积水，以及功能MRI对脑区活动的研究等等。本文主要以内听道MRI影像学特征来探讨SNHL的潜在病因，为耳科医生诊疗SNHL提供新思路。

关键词:感音神经性听力损失;磁共振成像;功能磁共振成像

Abstract:

Sensorineural hearing loss (SNHL) is a common disease in otology, which is mainly manifested as hearing loss with or without tinnitus, vertigo and stuffy ears, etc. The etiology of SNHL is complex and diverse. There is no definitive cause of SNHL. In recent years, with the development and application of magnetic resonance imaging (MRI) technology, new ideas have been provided for the exploration of the cause of SNHL.MRI of the internal auditory tract has more advantages in soft tissue display, which can be used to study inner ear diseases in patients with SNHL including studying the anterior inferior cerebellar artery to further illustrate the microcirculation of inner ear, ginography to show membrane vagal effusion in patients with Ménière’s disease, and functional MRI to study activity in brain regions.

Key words:Sensorineural hearing loss;MRI;fMRI