General Clinical Terms
AIS	Acute Ischemic Stroke
LVO	Large Vessel Occlusion
MeVO	Medium Vessel Occlusion
EVT	Endovascular Therapy
mRS	Modified Rankin Score (functional outcome measure; ≤2 = good outcome)
NIHSS	National Institutes of Health Stroke Scale (stroke severity score)
TIA	Transient Ischemic Attack
tPA	Tissue Plasminogen Activator (a thrombolytic agent)
IV tPA	Intravenous Tissue Plasminogen Activator
HTN	Hypertension
DM	Diabetes Mellitus
Imaging and Radiologic Metrics
CT	Computed Tomography
CTA	CT Angiography
sCTA	Single-phase CT Angiography
mCTA	Multiphase CT Angiography
dCTA	CT Angiography derived from CT perfusion source imaging
CTP	CT Perfusion
DSA	Digital Subtraction Angiography
ASPECTS	Alberta Stroke Program Early CT Score (used to assess early ischemic changes)
ASITN	American Society of Interventional and Therapeutic Neuroradiology (used in reference to a standard collateral grading system)
mTICI	Modified Thrombolysis in Cerebral Infarction (reperfusion grading scale; ≥2b = good reperfusion)
CBV	Cerebral Blood Volume
CBV Index	Derived perfusion parameter reflecting penumbra characteristics
rCBF30% < 50 mL	Relative Cerebral Blood Flow <30% with volume less than 50 mL (used to approximate ischemic core)
HIR	Hypoperfusion Intensity Ratio (volume of Tmax > 10 s/volume of Tmax > 6 s)
Tmax	Time to maximum of the residue function, a perfusion parameter
Stroke Anatomy
MCA	Middle Cerebral Artery
M1	First anatomical segment of MCA
PM2	Proximal M2 segment of MCA
Distal M2/M3/M4	More distal branches of MCA
SCICA	Supraclinoid Internal Carotid Artery
ICA	Internal Carotid Artery
Statistical and Methodological
IRR	Interrater Reliability
OR	Odds Ratio
CI	Confidence Interval
aOR	Adjusted Odds Ratio
SD	Standard Deviation
IQR	Interquartile Range
Procedural Time Metrics
LKW	Last Known Well
Door to CT	Time from hospital arrival to CT imaging
Door to needle	Time from arrival to thrombolysis
Door to groin puncture	Time to access for thrombectomy
Groin puncture to recanalization	Time from puncture to reperfusion