Journal article

Abstract WMP22: Multiparametric CT Perfusion to Determine the Collaterals Status in Patients With Acute Ischemic Stroke: A New Perfusion Index

Ahmed J Awad, Sayedhedayatollah E Tadayon, Daniel Wei, Reham R Haroun, Thomas J Oxley, Johanna T Fifi, Amish H Doshi, Reade A De Leacy, Joshua B Bederson, J Mocco, Kambiz Nael

Stroke | Ovid Technologies (Wolters Kluwer Health) | Published : 2017

Abstract

Introduction: Good collateral flow is an independent predictor of reperfusion that can be used to extend the treatment window in the new era of endovascular therapies for patients with acute ischemic stroke (AIS). Using a multiparametric approach, we aimed to identify perfusion parameter/s that can represent the extent of collaterals in comparison to CTA. Methods: AIS patients with anterior circulation large vessel occlusion who had baseline CTA and CT perfusion were included. CT perfusion data were processed by Bayesian method to generate arterial tissue delay (ATD) maps at thresholds of 2 & 6 seconds. The volume of mild delayed perf..

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