Figure 3: A rough ROI outlining the anterior part of the knee in the dynamic image guided by the ME maps and their corresponding dynamic curves from baseline through day 7 (a–d). Note the decrease of enhancing voxels in the parametric map over time as well as a simultaneous decrease of the slope in the corresponding dynamic enhancement curves. The Y-axis of the enhancement curves shows the intensity increase from baseline, and the X-axis shows the acquisition time in seconds.