<p>Animals were imaged at 4 hours, 24 hours and 48 hours after injection of the <sup>64</sup>Cu-MeCOSar radiotracer for shWTCH2 and IgG. Shown are the maximum-intensity projections. The color scale for the PET image data shows radiotracer uptake with white corresponding to the highest activity and blue to the lowest activity. T: tumor; K: kidney; L: liver.</p
