What tests are required to diagnose vestibular vertigo?

Vestibular vertigo is an inner ear disorder; abnormalities typically cannot be detected via color Doppler ultrasound or CT scans. It is important to consider whether vertigo may stem from insufficient blood supply to the posterior circulation (e.g., vertebral-basilar insufficiency), which can be assessed using transcranial color Doppler ultrasound. So, what diagnostic tests are required to confirm vestibular vertigo? Below, we address this question.

What diagnostic tests are needed to confirm vestibular vertigo?

Generally, the following tests are required to confirm vestibular vertigo: for instance, caloric testing (bithermal caloric test), head impulse test (HIT), and cranial magnetic resonance imaging (MRI) to rule out central nervous system (CNS) disorders. In some cases, cerebrospinal fluid (CSF) analysis may also be necessary.

Additionally, thorough history-taking and a detailed physical examination are critically important. Only after completing these evaluations can most patients with vestibular vertigo be accurately diagnosed.

When vertigo occurs, patients often worry most about underlying CNS pathology—such as tumors, infarcts, or hemorrhages affecting the cerebellum or brainstem. If relevant investigations—including cranial MRI and CSF analysis—exclude such CNS conditions, further vestibular-specific tests (e.g., caloric testing) can then be performed to establish a definitive diagnosis of vestibular vertigo.

The above outlines the key diagnostic tests used to confirm vestibular vertigo. We hope this information is helpful to you.