Brain Magnetic Resonance Imaging in a Patient with Entrapped Echelon Microcatheter within Onyx Cast

According to the Food and Drug Administration (FDA) website, between the years of 2005 and 2012, there have been 100 cases of catheters being embedded in Onyx cast (ev3, Irvine, California) [1]. Because these microcatheters have a metallic coil within the shaft, the safety of brain magnetic resonance imaging (MRI) is safe in this situation is not known. We report a patient in whom the MRI was performed in the presence of microcatheter imbedded within the intracranial arteries.