Clinical usefulness of labyrinthine three-dimensional fluid-attenuated inversion recovery magnetic resonance images in idiopathic sudden sensorineural hearing loss

2021 ◽  
Vol 29 (5) ◽  
pp. 349-356
Author(s):  
Ra Gyoung Yoon ◽  
Yeonjoo Choi ◽  
Hong Ju Park
2014 ◽  
Vol 129 (1) ◽  
pp. 11-15 ◽  
Author(s):  
T Tanigawa ◽  
R Shibata ◽  
H Tanaka ◽  
M Gosho ◽  
N Katahira ◽  
...  

AbstractObjective:Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging has been used to detect alterations in the composition of inner-ear fluid. This study investigated the association between hearing level and the signal intensity of pre- and post-contrast three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging in patients with sudden-onset sensorineural hearing loss.Method:Three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging was performed in 18 patients with sudden-onset sensorineural hearing loss: 12 patients with mild-to-moderate sensorineural hearing loss (baseline hearing levels of 60 dB or less) and 6 patients with severe-to-profound sensorineural hearing loss (baseline hearing levels of more than 60 dB).Results:High-intensity signals in the inner ear were observed in two of the six patients (33 per cent) with severe-to-profound sensorineural hearing loss, but not in those with mild-to-moderate sensorineural hearing loss (mid-p test, p = 0.049). These signals were observed on magnetic resonance imaging scans 6 or 18 days after sensorineural hearing loss onset.Conclusion:The results indicate that three-dimensional fluid-attenuated inversion recovery magnetic resonance imaging is not a useful tool for detecting inner-ear abnormalities in patients with mild sensorineural hearing loss.


2021 ◽  
Author(s):  
Yu Ai ◽  
Na Hu ◽  
Mingming Wang

Abstract Background: Sudden sensorineural hearing loss (SSNHL), defined as a hearing loss of ≥30 dB affecting at least three consecutive frequencies occurring over a 72-hour period, is commonly in audiologic and otolaryngologic practice. However, SSNHL with auditory neuropathy is rarely reported. We described the clinical characteristics of a patient with SSNHL and auditory neuropathy, together with its etiologic mechanism. Case presentation: A 27-year-old woman was referred to our otological clinic with acute diminished hearing on the left ear, associated with persistent tinnitus, aural fullness and vertigo, all for a duration of 20 days. Audiological examination showed presence of otoacoustic emissions and cochlear microphone with absent ABR on the left ear, which was consistent with the criteria of auditory neuropathy. Magnetic resonance images of the brain and inner ear implicated demyelinating lesions in the auditory nerve. Forty months after onset, all the auditory retests were normal and symmetric T2-FLAIR signals of both auditory nerves were found in inner ear magnetic resonance images.Conclusion: We showed that the SSNHL with auditory neuropathy could be caused by demyelination. The case also suggests that some SSNHL caused by demyelination is reversible.


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