Table 2

DCE-MRI Parameters Ktrans and ve calculated with Ind-AIF and Avg-AIF

AIF

Ind-AIF*

Avg-AIF*

Difference between Ind-AIF and Avg-AIF based parameter estimates


ROI Ktrans (min-1)

0.35 ± 0.29

0.23 ± 0.12

0.12 ± 0.08a

Histogram Median Ktrans (min-1)

0.36 ± 0.29

0.22 ± 0.11

0.14 ± 0.09b

ROI ve

0.52 ± 0.51

0.43 ± 0.39

0.09 ± 0.06c

Histogram Median ve

0.37 ± 0.22

0.38 ± 0.19

0.01 ± 0.007d


*Mean ± SD; Student's paired t-test for Ktrans and ve values obtained with Ind-AIF and Avg-AIF; Differences between Ind-and Avg-based parameter estimates: aP = 0.20, bP = 0.18, cP = 0.48, dP = 0.93.

Shukla-Dave et al. BMC Medical Physics 2009 9:4   doi:10.1186/1756-6649-9-4

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