IMAGING AGENT FOR DIAGNOSIS IMAGING AGENT FOR DIAGNOSIS

摘要

The present invention is directed to an imaging agent for diagnosis comprising a compound composed of a polynuclear type compound of the formula I or II: (See formula 1) wherein each X is a hydrogen atom or a bifunctional ligand, at least one of them is a bifunctional ligand and m or n is an integer of 1 to 6, and at least one metal ion being coordinated with at least one bifunctional ligand moiety, said metal ion being selected from the group consisting of metal ions having an atomic number of 21-29, 31, 32, 37-39, 42-44, 49 and 56-83.