Researchers who used F-18 FDG-PET/CT found that individuals with asymmetric hearing impairment had significantly lower regional glucose metabolism in the primary auditory cortex and inferior colliculus, which serves as the main auditory pathway, on the opposite side of their weaker ear, while prolonged hearing loss correlated with elevated metabolism in the contralateral PAC, but not for the ipsalateral PAC or either IC side. The findings, published in the Journal of Nuclear Medicine, may help determine those who would benefit from cochlear implants, researchers said.
F-18 FDG-PET/CT can help assess asymmetric hearing loss
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