The presence of metal in your body may be a safety hazard or affect a part of the MRE image. Before receiving an MRE, tell the technologist if you have any metal or electronic devices in your body, such as:
- Metallic joint prostheses
- Artificial heart valves
- Implantable heart defibrillator
- Metal clips
- Cochlear implants
- Bullet, shrapnel or any other type of metal fragment
Before you schedule an MRE, tell your doctor if you think you're pregnant. The effects of magnetic fields on fetuses aren't well-understood. Your doctor may recommend choosing an alternative exam or postponing the test.