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RT Journal Article
SR Electronic
T1 Perfusion Scotoma: A Potential Core Underestimation in CT Perfusion in the Delayed Time Window in Patients with Acute Ischemic Stroke
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 813
OP 816
DO 10.3174/ajnr.A7524
VO 43
IS 6
A1 Abrams, K.
A1 Dabus, G.
YR 2022
UL http://www.ajnr.org/content/43/6/813.abstract
AB SUMMARY: With the growing rise in utilization of CT perfusion for selecting patients for thrombectomy in acute ischemic stroke from large vessel occlusion, some potential pitfalls are becoming more commonly seen particularly when it comes to estimating the core infarct size on CT perfusion. Ghost infarct core has been described to account for overestimating core infarct size in the early time period (&lt;3 hours). Herein, we describe the phenomenon of underestimating core infarct size on CT perfusion in the later time period (&gt;6 hours), which we have termed perfusion scotoma.