Table 3 Quantitative parameters from perfusion computed tomography and dual-energy computed tomography.

From: Dual-energy computed tomography as a lower radiation dose alternative to perfusion computed tomography in tumor viability assessment

Perfusion CT

Mean ± SD

Median

CI (− 95%–+ 95%)

PS (ml/100 g/min)

28.4 ± 26.3

28.1

18.2–38.6

Tmax (s)

6.1 ± 4.6

5.4

4.2–7.9

BF (ml/100 g/min)

133.1 ± 83.7

124.7

100.7–165.6

BV (ml/100 g)

6.9 ± 5.4

5.6

4.8–9.0

DECT

IC (× 100 µg/cm3)

16.2 ± 8.7

16.3

12.8–19.6

  1. BF blood flow, BV blood volume, PS permeability surface area product, Tmax the time-to-maximum of the tissue residue function, SD standard deviation, CI confidence interval.
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