Fig. 6

The in vivo gelation ability of the radiopaque embolic solutions, which contain copolymer (25 wt%), lipiodol^® (10 wt%) and DOX (10 mg mL⁻¹), was observed at 5 h after injection. The white color of the radiopaque signals in red circles on CT images (A, B) and the red regions in white circles or indicated arrows in the excised tumors images (C, D) indicated the gelation of the radiopaque embolic materials after intratumoral (A, C) or intraarterial (B, D) injection. E H&E-stained histology image of excised tumor at 5 h after intraarterial injection in which the gel regions were indicated by arrows. Reprinted with permission from Lym et al. [69].