Computed tomography perfusion imaging for intravenous thrombolysis decisions 4.5 hours after stroke


  • 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.