Clare Garrett was poisoned by contrast dye used for an MRI scan, and now she is in a wheelchair "90 percent of the time." The ...

A medical innovation that has significantly advanced medical treatments, magnetic resonance imaging has helped doctors see inside the body. MRI scans are a non-invasive and relatively safe procedure.

MRI is a diagnostic test that doctors use to diagnose and track the progress of amyotrophic lateral sclerosis (ALS). ALS is a progressive disease that damages nerve cells in the brain and spinal cord.