Magnetic Resonance Imaging (MRI) is a diagnostic method that does not use ionizing radiation but relies on strong magnetic fields and radio waves. Due to the powerful magnetic field, undergoing an MRI scan can be risky or contraindicated for individuals with certain metallic or electronic devices in their bodies. The main conditions and devices for which MRI cannot be performed include:
* Metallic joint prostheses
* Cochlear implants
* Cerebral aneurysm clips (especially ferromagnetic ones)
* Certain metallic coils or stents placed in blood vessels
* Pacemakers and implantable cardioverter-defibrillators (ICDs)
* Vagal nerve stimulators and other neurostimulators