| 摘要 |
A magnetic resonance imaging agent which includes: a polymer containing the structural unit represented by the following formula (I) and the structural unit represented by the following formula (II) in a molar ratio of 5 to 80:20 to 95; a paramagnetic metal compound; and a ligand molecule: wherein R1 represents hydrogen atom or methyl group; R2 represents a hydrogen atom or a methyl group; A represents -(CH2)2N+(CH3)3 or the like; and B represents oxygen atom, sulfur atom, -CH2-, or -NH-; and R4 represents hydrogen atom, an optionally substituted alkyl group, or an optionally substituted aryl group, which affords good retention in the blood and a good ability to accumulate in diseased areas.
|
