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PET/CT fusion and PET sagittal images of two nude rats bearing HNSC xenograft at 1 hour, 4 hours, 20 hours, and 44 hours post tail-vein injection of 64Cu-NS and 64Cu-NS–RGDfK. The arrows are pointing at the tumor.
Abbreviations: CT, computed tomography; HNSC, head and neck squamous cell carcinoma; NS, nanoshell; PEG, polyethylene glycol; PET, positron emission tomography; RGDfK, Arg-Gly-Asp-D-Phe-Lys.
