4963344 METHOD TO ENHANCE NMR IMAGING USING CHELATED PARAMAGNETIC IONS Heinz Gries, Douw Rosenberg, Hanns-Joachim Weinmann, Ulrich Speck, Wolfgang Mutzel, Georg-Alexander Hayden, Heinrich Pfeiffer, Berlin, Federal Republic Of Germany assigned to Schering Aktiengesellschaft
Agents useful for influencing the relaxation times in NMR diagnostics, contain at least one paramagnetic, physiologically compatible complex salt comprising a chelate from an openchain or cyclic complex-forming compound containing organic nitrogen, phosphorus, oxygen and/or sulfur, and a complexed ion of the lanthanide elements of atomic number 57-70 or of the transition metals of atomic numbers 2129, 42 and 44, and, optionally, an inorganic or organic base or acid.
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