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In the 1930's, Felix Bloch and Edward Purcell discovered the NMR, or the nuclear magnetic renosence. This machine has magnetic fields and radio waves that cause the atoms to give off little radio signals. The NMR was soon named the MRI.
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In 1970, a medical doctor and research scientist named Raymond Damadian figured out the basis for magnetic resonance imaging (MRI) and started using it as a tool in medical diagnosis.
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In 1972, less than two years later, Damadian filed his idea about using the MRI (magnetic resonance imaging) as a tool for medical diagnosis to the United States Patent Office.
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In 1972, a man named Godfrey Hounsfield invented the computerized tomograhy in England.
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In 1973, an electrical engineer named Hounsfield used the same technique that Olendorf himself used for the computerized tomography (CT), but for medical diagnosis.
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In 1974, the first patent was granted in the field of MRI. It was the first patent in MRI in the world.
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Through 1974 and 1976, the first clinical computed tomographies were installed.
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Before 1976, the CT scans were only for the head, but then in 1976, the whole body CT scans became available.
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In 1977, Damadian constructed the first whole body MRI scan, which he called "Indomitable."
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In 1978, Damadian created a company called FONAR Corporation, from Field fOcused Nuclear mAgnetic Resonance. It specialized in selling commercial MRIs.
