Takeaway
Computed tomography perfusion (CTP) imaging could help in selecting patients with acute ischemic stroke (AIS) who may benefit from intravenous thrombolysis (IVT) despite estimated time from onset (TFO) >4.5 hours.
Why this matters
Many patients with AIS do not receive IVT due to presumed TFO >4.5 hours.
CTP imaging might provide a readily accessible means to identify individuals with AIS and TFO who might still benefit from IVT.