Iron and Gadolinium Chelates as Contrast Agents in NMR Imaging: Preliminary Studies

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Abstract
Fe2+ and Gd3+ chelated to ethylenediaminetetraacetic acid and Gd3+ chelated to diethylenetriamine pentaacetic acid have been used as contrast agents in NMR imaging of the normal kidney and cerebral infarction in rabbits. All 3 agents produced observable changes with inversion-recovery images and marked changes in T1.
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