Site Personnel de Stéphane Balac - Enseignant Chercheur à l'ENSSAT de Lannion (Université de Rennes 1)

ARAMIS

a matlab program for the numerical simulation of metallic implant induced artifacts in magnetic resonance imaging



On the basis of the work we devoted to susceptibility and radio-frequency artifacts,  we have developped a matlab program that simulates both the susceptibility and the eddy current artifacts in the case of a metallic implant with spherical shape (for such geometry, analytical expressions for the induced RF and static magnetic fields are known). These two kinds of artifact add to the MRI image without our knowing of the contribution of each one to the image distortion. Our program enables to hide one of the two artifacts and image the other or image the effects of the two artifacts together. It is then possible to compare for different materials the importance of each source of image distorsion.

Details on the mathematical modeling from where the matlab program originates can be obtained in the following articles :
To download the source code :
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