| 摘要 |
PROBLEM TO BE SOLVED: To provide a novel imaging agent suitable for kidney function visualization.SOLUTION: The invention provides an imaging agent for renal function diagnosis which contains composite particles, wherein the composite particle is a composite particle in which a polymer graft chain binds on a particulate surface, the graft density of the polymer graft chain is 0.1 chain/nmor more, and the number average molecular weight (Mn) of the polymer graft chain is 30,000 or more. MR is used for the microparticle; iron, cobalt, alloy, iron oxide, or the like is used for measurement. If it is an optical image, an inorganic particle which may be or may not be a magnetic material or the like, or an organic coloring pigment or fluorescent pigment bound to or enclosed in a microparticle is used.SELECTED DRAWING: Figure 5 |
