A new macromolecule as a contrast agent for MR angiography: preparation, properties, and animal studies.


The authors developed and evaluated a polymer as a contrast agent for magnetic resonance (MR) angiography. The agent consists of a monomethoxy ether of poly(ethylene glycol) covalently attached to poly(L-lysine) (PL), with PL serving as the carrier of gadolinium diethylenetriaminepentaacetic acid (DTPA). Immunogenicity and toxicity studies were performed in… (More)


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