FIGURE 3. Sequential -images of mouse injected intravenously with 10 µg 1:30 ¹¹¹In-DTPA-PEG-C225. Radioactivity in liver (arrow) is markedly lower than in images in Figure 1. Tumor (arrowheads) in hind limb is clearly seen at 6, 24, and 48 h after injection. Anterior views of mouse placed prone on camera’s pinhole collimator, with head pointing to top.