REDUCTION OF ARTIFACTS IN MAGNETIC-RESONA NCE IMAGES BY USING OPTIMIZED MATERIALS FOR DIAGNOSTIC DEVICES AND IMPLANTS

Differences in magnetic susceptibility, as occur for example at the bo undary between implant materials and the surrounding body tissue, resu lt in artefacts and a signal loss in magnetic resonance imaging. By us ing materials with a magnetic susceptibility matched to the respective environment, it is possible to minimize both artefacts and signal los s. Such materials can be made by combining two materials of different magnetic susceptibility (e.g. diamagnetic and paramagnetic materials) in such a way that the resulting material has the desired effective ma gnetic susceptibility.