TABLE 1.

The criteria of classification of DCE-MRI data

	Rh	Rv
Perfused voxel	Rh > 0.9	Rv > 0.2
Hypoxic voxel	0.5 ≤ Rh ≤ 0.9	Rv > 0.2
Necrotic voxel	Rh < 0.5 or	Rv < 0.2