MRI scans introduced
Using a combination of magnetism and radio frequency waves, MRI scanners provide information about the body. Magnetic resonance imaging scanners prove more effective in providing information about soft tissues, such as scans of the brain. The patient lies inside a large cylindrical magnet and extremely strong radio waves are then sent through the body. It provides very detailed pictures, so is particularly useful for finding tumours in the brain; it can also identify conditions such as multiple sclerosis and the extent of damage following a stroke.