The Difference between an X-Ray, CT Scan, and an MRI
By: Amit Kothiyal
Submitted: 2011-03-23 02:43:38 | Word Count: 397
The difference between an X-Ray, CT Scan, and an MRI is pretty substantial, but for the average person, they might all seem pretty similar. These are all imaging procedures that use radiologic technology. They are all medical procedures that are used for diagnoses and treatment in hospitals and other health care settings, which need to be ordered by a physician. However, that is where the similarities end. The following explanations should help explain the differences.
X-Ray
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An X-Ray is actually a type of radiation. When the radiation passes through the patient's body, the equipment used by the X-Ray technician can pick up images of dense objects that will appear white on the X-Ray film. This technology is most often used to assess and diagnose bone degeneration, disease, dislocations, fractures, infections and/or tumors.
CT Scan
CT Scans, or computed tomography scans, create more detailed images of the inside of the patient's body than X-Rays can. This is actually just a more sophisticated form of X-Ray that can actually take 360-degree photographs of the internal organs, spine and vertebrae. What makes this different than the average X-Ray is the computer technology that enables cross sectional views, which can be further heightened when a contrast die is inserted in the blood. It is the best imaging technology for looking at the spine and vertebrae.
MRI
The technology used for MRI, or magnetic resonance imaging, is quite different from X-Rays and CT Scans, although the quality of the images is similar to that of the CT Scan. With an MRI scan, medical and laboratory professionals are able to utilize the magnetic properties of organs and tissues within the body. MRI technology combines a powerful magnet with radio waves, which take the place of the X-Ray wave. A computer is also used to manipulate the magnetic elements. The result is an impressively detailed picture of the inner structures of the patient's body. Medical professionals can learn more about what is going on with their patients with cross sections of body parts. And unlike X-Rays, MRI scans do not involve radiation. This is the most common technology for bone and joint issues.
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