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Table 4 Predicted mean core infarct volumes and the mean difference between CTP and DWI for acute and delayed MRI follow up

From: Can CT perfusion accurately assess infarct core?

  ≤4 h >4 h
Parameter Mean (mL) CTP-DWI difference (mL) Correlation to DWI Mean (mL) CTP-DWI difference (mL) Correlation to DWI
AbsCBF 26.5 0.76 ± 47.9 0.516 22.6 −0.55 ± 50.2 0.765
AbsCBV 25.6 −0.10 ± 44.1 0.603 24.1 1.03 ± 49.7 0.770
rCBF 27.5 1.73 ± 39.2 0.705 19.8 −3.33 ± 48.8 0.794
rCBV 26.8 1.05 ± 37.4 0.738 21.2 −1.97 ± 47.1 0.800
CBV Tracing 35.9 10.2 ± 48.6 0.634 26.4 3.31 ± 30.3 0.918