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Cochlear implants and positron emission tomography

Published online by Cambridge University Press:  16 October 2012

R Aggarwal  and
K M J Green
R Aggarwal*
Affiliation:
Department of ENT, Central Manchester University Hospitals, UK
K M J Green
Affiliation:
Department of ENT, Central Manchester University Hospitals, UK
*
Address for correspondence: Miss R Aggarwal, Department of ENT, Central Manchester University Hospitals, Oxford Rd, Manchester M13 9WL, UK Fax: +44 (0)1625 520 135 E-mail: [email protected]
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Abstract

Objective:

This review aimed to summarise present knowledge surrounding cochlear implants and neuroplasticity using positron emission tomography.

Overview:

Cochlear implants are an established device for severe sensorineural hearing loss. However, the outcomes following a cochlear implant are variable and unpredictable. Furthermore, despite increasing numbers of implantations taking place, there are still uncertainties regarding how individuals learn to process speech using an implant. Functional neuroimaging studies using techniques such as positron emission tomography provide an insight into the cortical changes that take place in patients with cochlear implants.

Conclusion:

Only when the underlying mechanisms responsible for speech processing in implantees are understood can appropriate rehabilitation for those with poor speech perception be provided and outcomes improved.

Keywords

Auditory CortexRadionuclide ImagingCochlear ImplantsHearing LossNeuronal PlasticityPositron-Emission Tomography
Type
Review Article
Information
The Journal of Laryngology & Otology , Volume 126 , Issue 12 , December 2012 , pp. 1200 - 1203
Copyright
Copyright © JLO (1984) Limited 2012

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