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Advanced Neuroimaging of Acute Ischemic Stroke: Penumbra and Collateral Assessment

Research output: Contribution to journalReview articlepeer-review

Abstract

Acute ischemic stroke (AIS) occurs when there is a sudden loss in cerebral blood flow due to embolic or thromboembolic occlusion of a cerebral or cervical artery. Patients with AIS require emergent neuroimaging to guide treatment, which includes intravenous thrombolysis and endovascular mechanical thrombectomy (EMT). Recent advances in AIS treatment by EMT has been driven in part by advances in computed tomography (CT) and MR imaging neuroimaging evaluation of ischemic penumbra and pial collateral vessels. The authors review advanced noninvasive brain imaging by CT and MR imaging for the evaluation of AIS focusing on penumbral and collateral imaging.

Original languageEnglish (US)
Pages (from-to)585-597
Number of pages13
JournalNeuroimaging Clinics of North America
Volume28
Issue number4
DOIs
StatePublished - Nov 2018
Externally publishedYes

Keywords

  • Collaterals
  • CT
  • Infarction
  • MR imaging
  • MRA
  • Penumbra
  • Perfusion
  • Stroke

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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