Fig. 2
From: Role of arterial spin labeling magnetic resonance perfusion in acute ischemic stroke
Acute infarction with ischemic penumbra: 78 years old male patient complaining of left hemiplegia since 8 h. A T2WI, B FLAIR, C SWI, D DWI, and E ADC map show acute ischemic infarct at the right basal ganglia. ASPECTS score was 8/10. F ASL perfusion at 1.5 s shows larger area of hypo perfusion (diffusion perfusion mismatch) reflecting large area of ischemic penumbra, aCBF = 14 mL/gm 100/min—rCBF = 65% to contralateral side. aCBF absolute cerebral blood flow, ADC apparent diffusion coefficient, ASL arterial spin labeling, ASPECT Alberta Stroke Program Early CT Score, DWI diffusion weighted image, rCBF relative cerebral blood flow, SWI susceptibility weighted image