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Brigham Young University
MRI Research Facility

MRI Safety

MRI is a safe procedure, but with anything, we take steps to minimize the risk. The main concern is metal objects, which is why we carefully screen everyone before they enter the MRI room. We will start with a "safety dance" to look for metal, an then we will do a final check using a metal detector.

Please talk to the research assistant about any metal being brought into the room.

MRI Safety Resources

If you have questions about object safety in the MRI machine, please consult the MRI safety list.

Frequently Asked Questions about Implants

Here is a list of things that patients and researchers frequently ask about:

Things we can not scan:

We do not have a physician on site at the BYU MRI facility. Because of this, we DO NOT ever scan:

  • Cochlear Implants
  • Pacemakers
  • Defibrillators
  • Neurostimulators
  • Spinal Cord Stimulators
  • Internal Electrodes or Wires
  • Aortic, Artery, or Aneurysm Clips.

Dental Implants

Dental implants (titanium or zirconia) are generally safe for MRIs and will not move or cause pain, as they are non-ferromagnetic. They may cause minor, localized image distortion in head/neck scans. Always inform the research assistant about any implants or past surgical procedures.

The safety topic essay regarding dental implants is linked here.

Intrauterine Devices

Some IUD's may be unsafe in an MRI machine. Please consult the safety topic essay regarding IUD's linked here.

Orthopedic Implants

Most of the orthopedic implants, materials, and devices evaluated for MRI issues are made from nonferromagnetic materials and, therefore, are safe in the MRI. However, due to the length of the implant or the formation of a conductive loop, MRI-related heating may be a problem for some orthopedic implants, especially cervical fixation devices and internal or external fixation systems.

For more information regarding orthopedic implants, please consult the safety topic essay regarding orthopedic implants linked here.

Side Effect Information

There are no lasting side effects from an MRI, but here are a few common sensations people experience:

1. Lightheadedness or Vertigo: This can happen when the table moves. If you feel dizzy, closing your eyes can help.

2. Tingling or Twitching Muscles: This is called peripheral nerve stimulation. It is common and won't last long.

3. Metallic Taste: Some people experience this during a scan, however, it doesn't last long.

These sensations are normal and temporary. If you are experiencing any discomfort, please notify the research assistant running your scan.