OPTICAL IMAGING AGENTS

摘要

The present invention relates to a method of in vivo optical imaging, of the margins around tumours, which comprises an optical imaging contrast agent. The optical imaging agents comprise conjugates of near-infrared dyes with synthetic polyethyleneglycol (PEG) polymers having a molecular weight in the range 15-45 kDa. Also disclosed are optical imaging contrast agents, pharmaceutical compositions and kits.