Figure 3.

Receiver operating characteristic curves of the dynamic contrast-enhanced magnetic resonance imaging parameters measured independently by two radiologists. The AUCs of Ktrans (blue) and iAUC (red) were both >0.9, with great consistency in measurement. Ktrans, volume transfer constant from the plasma compartment to the extravascular extracellular space; Kep, rate constant for transfer between extravascular extracellular space and the blood compartment; Ve, volume of extravascular extracellular space per unit volume of tissue; (i)AUC, (initial) area under enhancement curve.