The FDA has approved an implantable spinal cord stimulation device designed to block pain that’s safe for patients who need to undergo full-body MRI.

Battery-powered transmitters deliver signals through electrical leads implanted along the spinal cord, and these signals interfere with pain messages traveling to the brain. The Mayo Clinic in Rochester, Minn., is now offering the device, and in the video below, Halena Gazelka, MD, provides more details on how it works and who could benefit: