Performance parameters
Deterministic modelStochastic model (triangle distribution)
PSC door-to-needle time23 (min)6050100
CSC door-to-needle time24 (min)403060
CSC needle-to-puncture time2 (min)603090
CT angiography2 (min)151030
Transfer lag2 (min)503070
Probability of IV tPA ineligibility9 (%)
Probability of EVT ineligibility3 (%)11.28.713.7
Probability of a LVO achieving recanalization with IV tPA alone10 11 (%)181422
Probability of ICH from IV tPA12 (%)639
Probability of successful reperfusion after EVT3 (%)806595
  • CSC, comprehensive stroke center; EVT, endovascular thrombectomy; FAST-ED, Field Assessment Stroke Triage for Emergency Destination; ICH, intracranial hemorrhage; IV tPA, intravenous tissue plasminogen activator; LVO, large vessel occlusion; NIHSS, National Institutes of Health Stroke Scale; PSC, primary stroke center.