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School of Medicine
Transtympanic Electrococheography - ECOG
What is Transtympanic Electrocochleography (ECOG)?
Electrocochleography (ECOG) is a specialized test which measures the electric potentials or signals generated in the inner ear in response to sound. ECOG may be used to help diagnose whether you have any disease which may cause an accumulation of inner ear fluid, such as Ménière’s disease.
What should I expect?
Transtympanic ECOG is performed with a recording electrode placed as close to the inner ear as possible. This is done by passing the electrode through the eardrum and positioning it next to the inner ear. This test is performed while the patient is lying down in the sound booth. The physician will first examine the patient and place the electrode and then the test will be performed by the audiologist. This test is scheduled as a 90-minute appointment.
How will I receive my results?
The audiologist will share your test results with you at the completion of testing. Your physician will further review results and examine the eardrum following removal of the electrode.