Table 3.

Summary of univariable analysis showing the relationship between tumor volume and tumor grade with the significant perfusion/permeability estimators obtained with Gd-DTPA DCE-MRI

Tumor volumeTumor grade
SpearmanPExact rank sum testt test
Pre
    AUC60−0.2390.1550.2560.3
    AUC90−0.2410.1510.2420.294
    AUCt-max−0.2080.2160.1240.182
    Washin−0.1750.30.7560.787
    Washout−0.2930.0790.1410.189
Post
    AUC60−0.5000.0410.5060.379
    AUC90−0.5150.0350.6460.346
    AUCt-max−0.6100.0090.0090.008
    Washin−0.5340.0270.2340.039
    Washout−0.5860.0140.3280.189
HT (min)0.2440.1460.0330.104
  • NOTE: Summary of univariable analysis showing the relationship between tumor volume and tumor grade with the significant perfusion/permeability estimators obtained with Gd-DTPA DCE-MRI. All of the post-MRI image parameters were found to correlate with tumor volume. AUCt-max and washin correlated with tumor grade. Therefore, it is not possible to determine whether these parameters are independent predictors of outcome.