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. 2011 Jan 10;108(4):1603–1608. doi: 10.1073/pnas.1010744108

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Fig. 4. — Time-activity curves of [¹⁸F]F-PEG6-IPQA–derived radioactivity (percent ID per gram) in different tumors (A) at baseline and (B) after pretreatment of animals with iressa. Quantification of [¹⁸F]F-PEG6-IPQA accumulation in different tumor xenografts at baseline (blue bars) and after pretreatment with iressa (red bars). (C) The rate of unidirectional accumulation (K_i) of [¹⁸F]F-PEG6-IPQA determined using Patlak graphical analysis and (D) binding potential (BP) of [¹⁸F]F-PEG6-IPQA determined by Logan model-independent graphical analysis. Bars are SEs; statistically significant differences (P < 0.05) are indicated by an asterisk.