Iodixanol, a nonionic, dimeric, iso-osmolar contrast medium (IOCM), may be less nephrotoxic than nonionic, monomeric, low-osmolar contrast media (LOCMs) in high-risk patients. We compared the nephrotoxicity of iodixanol with that of iopromide, an nonionic, monomeric LOCM, in patients with renal impairment.
