MRI: A Magnificent Tool in the Diagnosis of Diverse Diseases

Abstract

Today, the use of Magnetic Resonance Imaging (MRI) scanners has grown tremendously. Doctors may order MRI scans to help diagnose multiple sclerosis, brain tumors, torn ligaments, tendonitis, cancer, strokes and a number of other ailments which a person come across in his daily life. An MRI scan is the best way to see inside the human body without cutting it open. Magnetic resonance imaging (MRI) is a non-invasive way to take pictures of the body. Unlike X-rays and computed tomographic (CT) scans, which use radiation, MRI uses powerful magnets and radio waves. The magnetic field produced by an MRI is about 10 thousand times greater than the earth's magnetic field. Single MRI images are called slices and these images can be stored on a computer or printed on film. One exam produces dozens or sometimes hundreds of images. This review describes various aspects like principle, construction, working, applications of MRI which will be very beneficial for the researchers and health professionals.