Functional neuroimaging studies in asymmetric hearing loss

Audiol Neurootol. 2015:20 Suppl 1:48-52. doi: 10.1159/000380748. Epub 2015 May 19.

Abstract

This article presents an analysis of the impact of functional neuroimaging studies (positron emission tomography, PET) in asymmetric hearing loss based on the clinical expertise obtained from a group of 21 patients. In these patients, PET studies are performed at rest and after auditory stimulation in order to measure the increase in brain activity in the ipsi- and contralateral cortex, providing supporting evidence to recommend a specific treatment and the side to implant. In conclusion, PET is a useful tool for selected cases in which information on the metabolic status of the auditory pathway can drive the decision regarding the treatment of the most appropriate ear. However, in view of our small sample, further research is needed to confirm our results in this topic.

MeSH terms

  • Acoustic Stimulation
  • Adult
  • Aged
  • Auditory Cortex / diagnostic imaging*
  • Auditory Cortex / physiopathology
  • Auditory Pathways / diagnostic imaging*
  • Auditory Pathways / physiopathology
  • Brain / diagnostic imaging
  • Brain / physiopathology
  • Cochlear Implantation
  • Female
  • Functional Neuroimaging
  • Hearing Loss, Unilateral / diagnostic imaging*
  • Hearing Loss, Unilateral / physiopathology
  • Hearing Loss, Unilateral / rehabilitation
  • Humans
  • Male
  • Middle Aged
  • Positron-Emission Tomography
  • Young Adult