Multimodal Use of Computed Tomography in Early Acute Stroke, Part 2

Abstract

Computed tomography (CT) scan remains the most widely technique in the cerebrovascular emergency, as it is largely available, minimally invasive, fast, cheap and reliable. Noncontrast enhanced CT (NeCT) imaging can show early signs of infarction in ischemic stroke; however, it could not show if the ischemic tissue is irreversibly damaged. CT perfusion (CTP) imaging has been shown to predict stroke location and size and can provide information about ischemic cerebral parenchyma not definitively compromised. CT angiography (CTA) could highlight stenosis or occlusion both in intracranial and extracranial vessels. By combining NeCT, CTP, and CTA the entire cerebrovascular axis can be imaged during acute stroke. Currently, the term “multimodal CT” indicates the combined use of these three techniques in order to obtain a complete picture of the extension of ischemic damage in acute stroke patients.

Keywords:

• CT angiography
• CT scan
• noncontrast enhanced CT

Notes

7. Adams HP, Del Zoppo GJ, von Kummer R. Management of stroke: a practical guide for the prevention, evaluation, and treatment of acute stroke. 2002; PCI editions.