The present invention relates to hydrogels comprising 1,2-diol or 1,3-diol groups acetalised with a radiopaque species of one or more covalently bound radiopaque halogens which are imageable during embolization therapy. The invention further relates to methods of making radiopaque polymers and radiopaque hydrogel microspheres to provide an imageable drug delivery system.
本发明涉及包含与一种或多种共价结合的放射性致密卤素相缔合的1,2
-二醇或1,3
-二醇基团的
水凝胶,在栓塞治疗期间可成像。该发明还涉及制备放射性聚合物和放射性
水凝胶微球的方法,以提供可成像的药物输送系统。