Balance & Vestibular Testing
Diagnostic Tests Used to Identify Balance and Vestibular Disorders
Balance & Vestibular Testing
With such a wide range of hearing and balance disorders, many of which have similar symptoms, it’s important for our audiologists to make an accurate diagnosis to come up with a successful treatment plan. Diagnostic testing plays an important role in determining the condition present.
Types of Diagnostic Balance Tests
Georgia Hearing Center at ENT of Athens provides a variety of diagnostic balance tests, including the following:
- Acoustic Immittance Measures. These tests evaluate the eardrum and middle ear and are used to determine which part of the ear is affected by hearing loss.
- Audiometry. This hearing exam measures your ability to hear different sounds, pitches and frequencies. It can determine the nature and extent of your hearing loss and whether you will benefit from hearing aids or surgery.
- Auditory Brainstem Response (ABR). This neurologic test provides information about the electrical activity in the auditory pathway between the inner ear and the brain and measures a person’s hearing sensitivity.
- Electrocochleography. This test is used to determine whether there is excess fluid in the inner ear by measuring the electrical currents generated by sound stimulation and can help with the diagnosis of Meniere’s disease and other balance and hearing disorders.
- Otoacoustic Emissions (OAE). This test measures the response of hair cells in the inner ear when stimulated and can indicate the presence of a conductive or cochlear hearing loss.
Diagnostic Tests for the Vestibular System
The vestibular system is complex and responsible for many of the body’s functions. In order to narrow down the exact cause of dizziness, it is necessary to administer a variety of tests. These measure eye movements, head movements, hearing and more.
- Videonystagmography (VNG). Similar to ENG testing, but an infrared video camera attached to a pair of goggles is used in place of electrodes. The same four-part testing process is utilized.
- Vestibular Evoked Myogenic Potential (VEMP). VEMP testing is used to determine whether the saccule (an inner ear organ) and vestibular nerves are functioning properly. Electrodes are attached to the neck and sounds are transmitted through a pair of headphones. The electrical response of the sternocleidomastoid muscle in the neck is recorded.