| MRI (Magnetic resonance imaging) is a
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| | technique. In 1986, this time was reduced
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| non-invasive imaging technique that uses
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| | to approximately 5 seconds. In 1993,
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| a combination of a large magnet, radio
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| | functional MRI was developed which showed
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| frequencies, and a computer to generate
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| | the mapping of the function of the
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| images of internal structures and organs
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| | various regions of the human brain.An MRI
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| of the body without using x-ray radiation
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| | machine is a large tube-shaped machine
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| and surgery.MRI has been developed based
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| | running through the magnet from front to
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| on the principles of nuclear magnetic
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| | end. The magnet creates a strong magnetic
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| resonance. NMR (nuclear magnetic
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| | field around the patient and sends pulses
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| resonance) was discovered by Felix Bloch
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| | of radio waves from the scanner. These
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| and Edward Purcell in 1946. During the
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| | waves force the nuclei of hydrogen atoms
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| 1950s and 1960s, NMR (nuclear magnetic
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| | out of their normal position. As the
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| resonance) was used for chemical and
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| | nuclei realigns into their normal
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| physical molecular analysis. In 1971,
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| | position they send out radio waves on
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| Raymond Damadian showed that the nuclear
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| | their own. The computers or the scanners
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| magnetic relaxation periods of tissues
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| | identify these signals and analyze and
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| and tumors differed. In 1973, Paul
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| | convert them into pictures with minute
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| Lauterbur used a back projection
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| | details of the part of the body being
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| technique similar to that used in CT
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| | examined. MRI scans are now widely used
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| scans and demonstrated magnetic resonance
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| | to examine organs, detect tumors and in
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| imaging on small test tube samples. In
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| | the diagnosis of many forms of cancer and
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| 1977, Raymond Damadian came up with the
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| | injuries in bones and tissues.MRI
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| first whole body MRI scanner and
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| | provides detailed information on MRIs,
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| performed a whole body scan in 4 hours
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| | Open MRIs, Brain MRIs, MRI Scans and
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| and 45 minutes. In 1980, Edelstein and
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| | more. MRI is affiliated with Digital
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| coworkers could acquire a single image in
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| | Oscilloscopes.
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| approximately 5 minutes using Ernst's
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