Ces radiol. 2020, 74(1):33-36 | DOI: 10.55095/CesRadiol2020/006

Masking of acute basal ganglia infarction in CT perfusionCase report

Miroslav Malík1, Peter Mikula1, Magdaléna Mižičková1, Dagmar Randová1, Tomáš Tvrdík1, Marek Krivošík2, Jozef Bilický1, Vladimír Javorka1
1 Rádiologická klinika LF UK, SZU a UNB, Bratislava, SR
2 II. Neurologická klinika LF UK a UNB, Bratislava, SR

Extension of ischemic stroke revascularization therapy window has lead to an increase in the utilization of CT perfusion for selecting patients who could benefit from the treatment. Outcomes from applying the technique can be influenced by various technical and pathophysiological factors that can impact the results' incorrect interpretation. One of these factors is the restoration of nonnutritive perfusion in brain tissue affected by ischemia, which can be caused due to spontaneous or therapeutic recanalization of the obliterated artery. This phenomenon is typically visible in the subacute phase after recanalization, but may also occur for up to 24 hours after the onset of clinical symptoms. Reperfusion, which is usualy characterized by higher-than-normal flow can mask ischemic lesion in CT perfusion maps and may lead to negative diagnosis. In the case report, we present a patient with acute stroke involving a large vessel occlusion and nearly normal CT perfusion appearance in basal ganglia infarction.

Keywords: CT perfusion, ischemic stroke

Accepted: January 30, 2020; Published: March 1, 2020  Show citation

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Malík M, Mikula P, Mižičková M, Randová D, Tvrdík T, Krivošík M, et al.. Masking of acute basal ganglia infarction in CT perfusion. Ces radiol. 2020;74(1):33-36. doi: 10.55095/CesRadiol2020/006.
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