Cancellation of metal-induced MRI artifacts with dual component paramagnetic and diamagnetic material: mathematical modelization and experimental verification

Journal of Magnetic Resonance Imaging (6:936-938 (1996))

Stéphane Balac
IRMAR, Université de Rennes 1
Campus de Beaulieu
35042 Rennes Cedex, France

with

Brice Chauvel, Guy Cathelineau, Jean Lecerf and Jacques D. de Certaines
Laboratoire de Résonance Magnétique en Biologie et Médecine
Université de Rennes 1
2, Avenue du Pr. Bernard
35043 Rennes Cedex, France

Abstract

A mathematical model of dual-component paramagnetic and diamagnetic material to cancel metal induced MRI artifacts was developped and verified experimentally. The magnetization produced by metallic material and then the gradient linearity distorsion can be cancelled by using such materials with opposing praramagnetic and diamagnetic properties. This concept of dual-component materials provides a novel solution to the problem of MRI artifacts.