| abstract |
PROBLEM TO BE SOLVED: To provide a contrast composition capable of suppressing dissociation of J-ICG in water and having high storage stability. An imaging composition having an aqueous solution containing an indocyanine green J-aggregate, wherein the storage stability is at least one selected from the group consisting of alkali metal ions, alkaline earth metal ions, and ammonium ions. An imaging composition, further comprising an agent. [Selection figure] None |