Other Diagnostic Tests

Magnetic resonance imaging (MRI) uses a magnetic field and radio waves to produce cross-sectional images of the parts of the body being scanned. An MRI of the brain can reveal the presence of tumors, stroke damage, and other soft-tissue abnormalities that might cause dizziness or vertigo. MRIs of structures in and around the inner ear may show problems such as an acoustic neuroma.

Computerized axial tomography (CAT, or CT) is an X-ray technique that is best for studying bony structures. CTs of the temporal bone (within which the inner ear resides) are often used to look for abnormalities such as fractures.

Depending on the circumstances, many other tests are possible, such as blood work or allergy tests.