Columbia physicist Isidor Isaac Rabi discovered nuclear magnetic resonance in the 1930s. Today, it lets doctors look inside ...

President Trump's doctor revealed Monday the justification for the president's October MRI scan, saying the results were "perfectly normal." The big picture: Magnetic resonance imaging (MRI) scans are ...

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.