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. Author manuscript; available in PMC: 2013 Aug 1.
Published in final edited form as: J Magn Reson Imaging. 2012 May 11;36(2):355–363. doi: 10.1002/jmri.23675

Table 4.

Mann-Whitney U-test deviation for five parameters of tumor ROIs in four grades

grades p value
Ktrans/min−1 Ve
Ivs II 0.156 0.156
Ivs III 0.003 0.017
Ivs IV 0.001 0.005
IIvs III 0.016 0.033
IIvs IV 0.005 0.037
IIIvs IV 0.366 0.670
Low vs high <0.001 0.001

Note: Ktrans/min−1: volume transfer constant of contrast agent from a plasma space to an extravascular extracellular space;

Ve: fractional extravascular extracellular space volume.