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American Journal of Neuroradiology 26:363-366, February 2005
© 2005 American Society of Neuroradiology

Technical Note
BRAIN

Detachable Coil for Cerebral Aneurysms: In Vitro Evaluation of Magnetic Field Interactions, Heating, and Artifacts at 3T

Frank G. Shellocka, Matthew Gounisb and Ajay Wakhlooc

a Keck School of Medicine, University of Southern California and Institute for Magnetic Resonance Safety, Education, and Research, Los Angeles, CA
b Department of Radiology and Department of Biomedical Engineering, University of Miami, Miami, FL
c Department of Radiology, Department of Surgery, and Department of Biomedical Engineering, University of Miami, Miami, FL

Address reprint requests to Frank G. Shellock, Ph.D., Institute for Magnetic Resonance Safety, Education, and Research, 7511 McConnell Ave., Suite 100, Los Angeles, CA 90045, frank.shellock{at}gte.net, www.MRIsafety.com

Summary: A detachable coil was assessed for magnetic field interactions, heating (body RF coil, SAR of 2.0-W/kg), and artifacts at 3-Tesla. The coil showed no magnetic field interactions and heating was negligible (+0.3°C). Therefore, this coil is safe for a patient undergoing MR imaging at 3T or less. While artifacts may impair the ability to properly visualize anatomy in proximity to this implant, careful selection of imaging parameters can mitigate this problem.




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Copyright © 2008 by the American Society of Neuroradiology. Print ISSN: 0195-6108 Online ISSN: 1936-959X