Table 3.

Summary of bivariate 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. AUC t-max and washin correlated with tumor grade. Therefore it is not possible to determine whether these parameters are independent predictors of outcome.

		Tumor Volume		Tumor Grade
		Spearman	p -value	Exact Rank sum test	T Test
Pre	AUC60	−0.239	0.155	0.256	0.3
	AUC90	−0.241	0.151	0.242	0.294
	AUC t-max	−0.208	0.216	0.124	0.182
	Washin	−0.175	0.3	0.756	0.787
	Washout	−0.293	0.079	0.141	0.189
Post	AUC 60	−0.500	0.041	0.506	0.379
	AUC 90	−0.515	0.035	0.646	0.346
	AUC t-max	−0.610	0.009	0.009	0.008
	Washin	−0.534	0.027	0.234	0.039
	Washiout	−0.586	0.014	0.328	0.189
HT(min)	HT(min)	0.244	0.146	0.033	0.104

AUC 60 = area under the curve integrated up to 60 sec

AUC 90 = area under the curve integrated up to 90 sec

AUC t-max = area under the curve integrated up to time to muscle peak