highly significantp < 0.001
Results Inter-observer-correlation ( r ) of DCE-US parameters [time-to-peak (TTP), mean-transit-time (MTT), peak intensity (PI), regional blood volume (RBV), regional blood flow (RBF)] at baseline, day 15, and day 56 was highly significant ( r -range 0.73–0.97, all p < 0.001).