human
My doctor wants me to get a MRI. What is this procedure like?
assistant
An MRI is a magnetic resonance imaging scan, which uses powerful magnets and radio waves to create detailed pictures of the brain. It’s usually done in an MRI machine, which looks like a large tube with coils around it. You lie inside the tube while it moves around you, and the scanner takes pictures of your brain as it spins. The whole process only takes a few minutes.