Figure 3: Dose–response curves for each tumor in 18f/18d group and 18f/36d group.

(A) No significant shrinkage of TVs was noted during RT delivery for the 10 tumors in 18f/18d group. (B) For the 10 tumors in 18f/36d group, with accumulation of irradiation dose, no shrinkage of the TVs was observed.