MRI Safety Issues for Implantable Neuromodulation Devices

A patient with an electrically, magnetically, or mechanically activated implant is typically excluded from examination by MRI unless the particular implant has been demonstrated to be unaffected by the electromagnetic fields used for this imaging modality. Potential risks include injuries related to movement of ferromagnetic implants, excessive heating, induced electrical currents, the misinterpretation of an artifact as an abnormality, and temporary or permanent implant damage. To date, several neuromodulation systems have been tested using ex vivo techniques, resulting in FDA approved labeling to permit patients to undergo MRI. This presentation will provide an overview of MRI-related issues for neuromodulation systems and discuss current information pertaining to devices that have been tested, to date. Learning Objectives At the completion of this presentation, participants should be able to: 1. Provide an overview of MRI procedures and safety issues; 2. Describe comprehensive screening procedures to prepare patients with neuromodulation devices for MRI exams; 3. Present the latest information pertaining to MRI safety for patients with neuromodulation devices.