The application of nuclear magnetic resonance best known to the general public is magnetic resonance imaging for medical diagnosis and magnetic resonance microscopy in research settings however it is also widely used in biochemical studies notably in nmr spectroscopy such as proton nmr carbon 13 nmr deuterium nmr and phosphorus 31 nmr. Medical practitioners employ magnetic resonance imaging mri a multidimensional nmr imaging technique for diagnostic purposes in 1945 two groups of physicists one at stanford the other at harvard first reported the detection of nmr signals in condensed matter. Abstract using the technique of nuclear magnetic resonance nmr mr mri the first images displaying pathology in humans were published in 1980 1 since then there has been a rapid extension in the use of the technique with an estimated 225 machines in use in the usa at the end of 1985 2 considerable enthusiasm has been expressed for this new imaging technique 3 although awareness of . A magnetic resonance imaging mri scan is an imaging test that uses powerful magnets and radio waves to create pictures of the body it does not use ionizing radiation x rays single mri images are called slices. Magnetic resonance imaging in medicine figure 4 special cases of an rf pulse a90 pulse b 180 inversion pulse c 180 refocusing pulserotation of b 1 and precession of m about b 0 have been omitted for clarity table 1 relaxation times of water protons in brain tissues measured in a healthy volunteer at 15 t courtesy of
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