Definition of "MRI"

Drawings and pictures are more than mere ornaments in scientific discourse. Blackboard sketches, geological maps, diagrams of molecular structure, astronomical photographs, MRI images, the many varieties of statistical charts and graphs: These pictorial devices are indispensable tools for presenting evidence, for explaining a theory, for telling a story.

2012 March, Brian Hayes, “Pixels or Perish”, in American Scientist‎, volume 100, number 2, archived from the original on 19 February 2013, page 106

When the delirium stopped and it was safe to take Versed, her doctors doped her up and she managed to endure the MRI, on condition that I remain with her all the time. They MRIed her skull for thirty minutes, and two days later MRIed her spine for an hour.

2005, Donald Hall, The Best Day the Worst Day: Life with Jane Kenyon, Boston: Houghton Mifflin Company, pages 99–100

Remarkably, no one to that point had suggested MRIing my leg, which is where my pain actually was. Everyone surmised that the issue was really in my back. Dr. Smith scheduled an MRI for that very day.

2014, Mark Herzlich, What It Takes: Fighting For My Life and My Love of the Game, New York, NY: New American Library, page 74