Typical
optical luminescence, PET and MR image of CT26 tumor-bearing
mouse at 4 h postinjection of [124I]HIB-Gd-liposome (n = 3) (a). Tumor, red arrow; liver, yellow arrow; spleen,
white arrowhead; bladder, green arrowhead. Maximum intensity projection
images of PET at 2, 4, and 24 h (b). Thyroid: white arrow. Radioactivity
uptakes in various organs at 2, 4, and 24 h (n =
3) (c). Tumor-to-organ uptake ratio at 24 h (d).