Vertigo CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Zehra Malik, M.B.B.S[2]

Overview

• CT scan is not the first-line imaging method preferred to determine the underlying cause of central vertigo due to its low sensitivity in identifying ischemic stroke and a negative CT scan cannot completely rule out the central cause of vertigo, it still needs to be further investigated with the help of an MRI.

CT

• CT scan or computerized axial tomography (CAT) of head and/or labyrinth may be necessary to identify the central cause of vertigo: ischemic stroke, cerebellopontine angle tumor, multiple sclerosis.
• A negative CT scan cannot exclude the central cause of vertigo and it should be followed by an MRI.
• CT scan has low sensitivity for identifying ischemic stroke as compared to an MRI.
• If MRI is contraindicated then a thin cut CT scan can be used.