Figure 3: MicroSPECT/CT images of 111In-AMBA targeting PC-3 tumors xenograft SCID mice. 12.2 MBq/4 μg 111In-AMBA was administered to each mouse by intravenous injection. The images were acquired at 1, 4, 8, 24, and 48 h after injection. The energy window was set at and ; the image size was set at 80 × 80 pixels. The color map shows the SPECT pixel values from 0 to the maximum expressed with an arbitrary value of 100.