Music system used with MRI (magnetic resonance imaging) scanner, c 1990.
© Science Museum / Science & Society Picture Library
Music was played to entertain patients whilst they were undergoing MRI. The speaker would not work close to the MRI magnets so it was kept at least three metres from the patient and sound pased through the rubber tubing to the patients headphones. MRI builds up a picture of the human body from the magnetic behaviour of water molecules inside the body. It is used to diagnose diseases and injuries affecting the brain, nerves, bones, muscles, and internal organs, especially the liver.