JOURNAL ARTICLE

Association Functional MRI Studies of Resting-State Amplitude of Low Frequency Fluctuation and Voxel-Based Morphometry in Patients With Occupational Noise-Induced Hearing Loss

Ranran Huang, Aijie Wang, Xinru Ba, Guowei Zhang, Chuanting Li, Qiang Liu
Journal of Occupational and Environmental Medicine 2020, 62 (7): 472-477
32730022

OBJECTIVES: To investigate changes in brain functional activity among occupational noise-induced hearing loss (NIHL) with tinnitus patients, using resting-state brain magnetic resonance imaging (Rs-fMRI) and voxel-based morphometry (VBM).

METHODS: Mild (27) and Relative severe (15) patient groups, 30 matched healthy group, scanned by Rs-fMRI and T1WI 3D fast spoiled gradient echo, FSPGR, using voxel-based morphometry and amplitude of low frequency fluctuation to analyze the differences.

RESULTS: Brain gray matter volume was significantly different among the three groups in the left occipitotemporal lateral gyrus, the anterior cingulate gyrus, the bilateral angular gyrus, the precuneus, and near the midline area of the cerebellum. The Rs-fMRI changes showed that amplitude of low frequency fluctuation differed significantly among the three groups in the right superior temporal gyrus, the right inferior frontal gyrus, and the right angular gyrus.

CONCLUSION: All this provides a new perspective for understanding the pathophysiological mechanism of occupational noise-induced hearing loss and provides some theoretical bases for subsequent treatment.

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