Fig. 9
PET and CT imaging of lung metastasis in mice. A, B Representative PET (A) and CT (B) images of mice at different time periods after inoculation of 4T1-GFP cells. Metastatic pulmonary nodules are indicated with white arrows, while blue arrows indicate lung consolidation and enlarged lymph nodes. For PET imaging, 18F-FDG (200–300 µCi in each mouse) was used as a radiotracer, with the exposure time of 20 min