Journal of neuroimaging : official journal of the American Society of Neuroimaging
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Randomized Controlled Trial Multicenter Study
Derivation and evaluation of thresholds for core and tissue at risk of infarction using CT perfusion.
Computed tomography perfusion provides information on tissue viability according to proposed thresholds. We evaluated thresholds for ischemic core and tissue at risk and subsequently tested their accuracy in independent datasets. ⋯ Time-based perfusion thresholds perform well as predictors of tissue at risk of infarction with DT the best predictor. Relative CBF was the best predictor of ischemic core. Evaluation in larger populations is needed to confirm the performance of tissue viability thresholds.