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Comparison of cRGD-ZW800-1 and ZW800F-cRGD-DFO. A: The TBRs obtained with the ZW800F-cRGD-Zr-DFO were significantly higher at 24 h post injection (P=0.03). B: Tumor-specific signals of ZW800F-cRGD-DFO remained above 50% for up to 2 days after injection and detectable up to 7 days after injection. C: Organ-to-tumor ratios of cRGD-ZW800-1 compared to ZW800F-cRGD-Zr-DFO at 24 h after injection. The ratios are lower and more favorable for ZW800F-cRGD-Zr-DFO. *: significant differences.
