Abstract #2885

Correction of Ferromagnetic Object Artifacts Using Simulated Off-Resonance Map

Sina Amirrajab¹, Vahid Ghodrati^2,3, and Abbas Nasiraei Moghaddam¹

¹Biomedical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran (Islamic Republic of), ²Department of Radiological Sciences, University of California, Los Angeles, Los Angeles, CA, United States, ³Biomedical Physics Interdepartmental Program, University of California, Los Angeles, Los Angeles, CA, United States

The aim of this study is to quantitatively investigate the potential of field-mapping method in areas around a ferromagnetic object in the post processing approach. As a worst-case scenario, for regions farther than around 10 times the radius of a ferromagnetic foreign object, the post processing approach (based on the simulated off-resonance map) can be useful, even at 3 Tesla, to correct image distortions. At this distance, the exact shape of the object is not important and results obtained for the sphere, remain valid for most objects with the same volume.

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