Fig. 4

A 47-year-old female patient with dedifferentiated liposarcoma in the thigh. In DCE imaging, several ROIs drawn in the most enhanced and hyperperfused region in axial post-contrast T1WI (A) and the color map (B) showed parameters which were more likely found in benign tumors. The values were as follows, K_trans 0.311 min⁻¹, K_ep 0.666 min⁻¹, V_e 0.520 and TIC type 2 (C). DCE, dynamic contrast-enhanced; K_ep, microvascular permeability reflux constant; K_trans, volume transfer constant; ROI, region of interest; TIC, time intensity curve V_e, volume extravascular-extracellular space per unit tissue volume