how does a M.R.I machine work? ?
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MRIs employ powerful magnets which produce a strong magnetic field that forces protons in the body to align with that field. ... When the radiofrequency field is turned off, the MRI sensors are able to detect the energy released as the protons realign with the magnetic field.
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Magnetic resonance imaging (MRI), also known as nuclear magnetic resonance imaging, is a scanning technique for creating detailed images of the human body. The scan uses a strong magnetic field and radio waves to generate images of parts of the body that can't be seen as well with X-rays, CT scans or ultrasound. An MRI or magnetic resonance imaging is a radiology techinque scan that uses magnetism, radio waves, and a computer to produce images of body structures. ... The magnet creates a strong magnetic field that aligns the protons of hydrogen atoms, which are then exposed to a beam of radio waves.
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