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Imaging of Acute Stroke 

Imaging of Acute Stroke
Chapter:
Imaging of Acute Stroke
Author(s):

Maxim Mokin

DOI:
10.1093/med/9780190856519.003.0006
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date: 26 June 2019

The goal of initial imaging performed in the emergency department is to rapidly and reliably establish whether the patient with a suspected acute stroke is suffering from an ischemic or a hemorrhagic event or whether there is an alternative diagnosis, which could present as stroke mimics. This chapter reviews the value of imaging modalities available for the evaluation of patients with a suspected stroke. For patients with ischemic stroke, imaging criteria defining eligibility for intravenous alteplase and endovascular thrombectomy are discussed. Indications, advantages and limitations of computed tomography are detailed including the Alberta Stroke Program, Early CT Score (ASPECTS) grading scale, magnetic resonance imaging and advanced perfusion imaging modalities.

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