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- $Unique_ID{BRK00845}
- $Pretitle{}
- $Title{Information on Magnetic Resonance Imaging}
- $Subject{magnetic resonance diagnostic imaging Special Procedures procedure
- lab Laboratory test Tests MRI pelvis muscles tendons NMR Nuclear Magnetic
- Resonance high quality images metallic implants pacemaker muscle tendon}
- $Volume{P-0}
- $Log{}
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- Copyright (c) 1991-92,1993 Tribune Media Services, Inc.
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- Information on Magnetic Resonance Imaging
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- QUESTION: Would you please discuss the technology that involves the use of
- magnetism to produce pictures that look like X-Rays? I am about to have one
- and could use a bit of information and reassurance.
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- ANSWER: I think you are referring to MRI, (which stands for Magnetic
- Resonance Imaging), an important and relatively new development in medical
- evaluation and diagnosis. It uses computers and magnetic fields to create
- images of virtually any area of the body, whereas other more familiar
- techniques use radiation as in CT scans, or sound waves as in sonograms. For
- certain areas, particularly the central nervous system, MRI is perhaps better
- than all other imaging techniques. For example, it has become the most single
- most sensitive procedure for diagnosing multiple sclerosis. It is also
- beneficial for examining the pelvis, muscles, tendons and ligaments, and
- various organs such as the kidneys, ovaries, and uterus. And it shows
- promise for the heart and abdomen as well.
- One of the major advantages of MRI (sometimes called NMR for Nuclear
- Magnetic Resonance, the scientific principle upon which the technique is
- based) as a diagnostic tool is its ability to create high quality images
- directly without the use of invasive procedures such as the injection of
- contrast media (dyes) into arteries or joints. Nevertheless, there are
- potential risks to the patient which should be recognized. These include the
- effects of electric currents, heat, and magnetic fields produced during the
- procedure. Patients who have had metallic surgical implants, such as a
- pacemaker, are at particular risk.
- Despite these important concerns, MRI has shown remarkable advances
- within the past years, and its improvement is expected to continue. Some
- experts claim, in fact, that MRI may ultimately replace the more conventional
- imaging techniques. At present, however, it should be emphasized that MRI is
- but one of many diagnostic tools available to the clinician. A medical
- history and physical exam, along with the use of other laboratory tests and
- imaging techniques as well as MRI, are all considered part of the ever
- growing complete diagnostic process.
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- The material contained here is "FOR INFORMATION ONLY" and should not replace
- the counsel and advice of your personal physician. Promptly consulting your
- doctor is the best path to a quick and successful resolution of any medical
- problem.
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