Which neuroimaging studies may be performed for the emergent evaluation of apparent acute ischemic stroke (AIS)?

Updated: May 27, 2020
  • Author: Edward C Jauch, MD, MS, FAHA, FACEP; Chief Editor: Helmi L Lutsep, MD  more...
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Emergent brain imaging is essential for evaluation of acute ischemic stroke. Noncontrast computed tomography (CT) scanning is the most commonly used form of neuroimaging in the acute evaluation of patients with apparent acute stroke. The following neuroimaging techniques may also be used emergently:

  • CT angiography and CT perfusion scanning

  • Magnetic resonance imaging (MRI)

  • Carotid duplex scanning

  • Digital subtraction angiography

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