Figure 2From: Monitoring response to gefitinib in nude mouse tumor xenografts by 18 F-FDG microPET-CT: correlation between 18 F-FDG uptake and pathological response Changes in A431 tumor 18 F-FDG uptake during treatment with gefitinib. No significant differences were seen among the groups on day 0 (P > 0.05), although significant differences were observed on days 2, 7, and 14.Back to article page