Figure 4

MicroPET-CT imaging of A549 tumors before and after gefitinib treatment. Tumors in the treated (A) and control (B) groups on day 2, 7, and 14. White arrow indicates tumor.
MicroPET-CT imaging of A549 tumors before and after gefitinib treatment. Tumors in the treated (A) and control (B) groups on day 2, 7, and 14. White arrow indicates tumor.