What is the role of MRI and CT studies in the workup of central retinal artery occlusion (CRAO)?

Updated: Jun 11, 2019
  • Author: Robert H Graham, MD; Chief Editor: Andrew G Lee, MD  more...
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Answer

Approximately 20% of patients with a CRAO also have cerebral ischemia; therefore, magnetic resonance imaging (MRI) of the brain may reveal concurrent cerebral ischemia in patients without accompanying neurological symptoms. [23] Magnetic resonance angiography (MRA) of the head and neck may be more accurate in detecting vascular occlusive disease. Computerized tomography (CT) or computerized tomography angiography (CT/CTA) or MRI/MRA of the neck may be needed for carotid dissection.


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