FIG. 6.

Small-animal PET imaging of ¹²⁴I-FIAU-labeled K562-TL cells. The PET images were obtained at 10 minutes (A), 2 hours (B), 12 hours (C), and 24 hours (D) postinjection. (E) Photo of DWBA section shown in (F). (F) DWBA image. At 10 minutes postinjection, the lungs are the primary targeting sites (A), but at 23 hours, the overall radioactivities were significantly decreased (D) in ¹²⁴I-FIAU-labeled K562-TL cells injected mice. The %ID/g represents the magnitude of radioactivity signal quantified in each small-animal PET image. Thy, thyroid; Lu, lung; Li, liver; Int, intestine.