Magnetic Resonance Imaging Essay -- Medical Technology Medicine Essays

Magnetic Resonance ImagingMagnetic rapport imaging has the potential of totally replacing computed tomography. If history was rewritten, and CT invented after MRI, nobody would bother to pursue CT. --Philip Drew (Mattson and Simon, 1996)WHAT IT ISMagnetic Resonance Imaging, or commonly known as MRI, is a technique pulmonary vacuum tuberculosisd in medicine for producing images of tissues inside the body. It is an important diagnostic tool because it enables physicians to identify atypical tissue without opening the body by means of surgery. MRI lets physicians see through bones and organs. MRI does not expose the patient to radiation, unlike tests that use X-rays. MRI provides an unparallel view inside the human body. It is the method of prime(a) for the diagnosis of certain diseases, disorders, and injuries. MRI is safe for close to hatful, but it uses a powerful magnet and so canfulnot be used on people with metal implants, such as pacemakers or artificial joints ( sphere Book, 2000).WHAT IT IS LIKE indoorsThree main components make up an MRI unit a magnet, devices for transmitting and receiving radio waves, and a computer. The patient is placed inside a machine that has a huge magnet. There is a horizontal tube running through the magnet from front to back. This tube is known as the bore of the magnet. The patient, lying on his or her back, slides into the bore on a special table. Once the body part to be scanned is in the rent center or isocenter of the magnetised field, the scan can begin (www.howstuffworks.com). The magnetic field causes the nuclei of certain atoms inside the body to line up. The machine therefore sends out a radio signal, which causes the nuclei to change direction. The change create signals that a computer translates to produce ... ...ams are also very expensive. (www.howstuffworks.com)For most patients, the numerous benefits of MRI far outweigh the drawbacks. MRI can provide you with an ample amount of information about your health.MRI is a tool to diagnose, visualize, amd evaluate move of our body. MRI can help prevent the spread of diseases by ancestral them in their early stages, and so still treatable. Staying healthy is probably the most important thing that we can do. Medical technology, such as MRI, can help us do that. Sources Lauterbur, Paul C., and Liang, Zhi-Pei, Principles of Magnetic Resonance Imaging, IEEE Press, refreshed York, 2000, p. 2-4.Mattson, James, and Simon, Merrill,The Story of MRI, Bar-Ilan University Press, New York, 1996, p. 1.World Book Encyclopedia, Magnetic Resonance Imaging, World Book Inc., Chicago, Vol 13, 2000, p. 56-57.www.howstuffworks.com