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Auditory Brainstem Response (ABR)

Auditory Brainstem Response is a diagnostic test used to evaluate the function of the eighth cranial (Auditory) nerve. The test set-up and procedure is very similar to that used for ECoG testing. This procedure is painless, non-invasive and causes little or no discomfort; typically an ABR takes about 30 minutes to complete.

ABR is used to:

  • identify retrocochlear pathologies such as acoustic tumors or vestibular schwannomas;
  • evaluate auditory brainstem function;
  • estimate hearing levels in malingering or difficult-to-test patients;
  • estimate hearing levels in infants and children.

Electrodes are placed on the patient in preparation for ABR testing. 

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