Detachable coil for cerebral aneurysms: in vitro evaluation of magnetic field interactions, heating, and artifacts at 3T.
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 degrees 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.
Shellock
Frank G
FG
Keck School of Medicine, University of Southern California and Institute for Magnetic Resonance Safety, Education, and Research, 7511 McConnell Avenue, Los Angeles, CA 90045, USA. frank.shellock@gte.net
Gounis
Matthew
M
Wakhloo
Ajay
A
D016477:Artifacts; D004574:Electromagnetic Fields; D004867:Equipment Design; D006358:Hot Temperature; D006801:Humans; D002532:Intracranial Aneurysm / Q000628:therapy*