A method of decreasing the NMR relaxation times (T1 or T2) of water protons in contact with a biological tissue, the method involving administering to a human patient an NMR contrast agent comprising a paramagnetic ion complexed with a chelating substance, the contrast agent being characterized in that it is capable of binding non-covalently and non-immunologically to a component of the tissue, and as a result of such binding is capable of enhancing relaxivity of the water protons by a factor of at least 2, compared to the relaxivity induced by the paramagnetic substance alone free in solution, and subjecting the patient to NMR imaging.
一种降低与
生物组织接触的
水质子的核磁共振弛豫时间(T1 或 T2)的方法,该方法涉及向人类患者施用一种核磁共振造影剂,该造影剂由与螯合物质络合的顺磁离子组成、该造影剂的特征在于,它能与组织的某一成分非共价和非免疫地结合,由于这种结合,与溶液中游离的顺磁性物质单独引起的弛豫性相比,它能将
水质子的弛豫性提高至少 2 倍,并对病人进行核磁共振成像。