MEDICINE
RADIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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a high intensity magnetic field is created around body to align the protons
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external radio-frequency of the same frequency as the spinning protons is applied
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a gauntry revolves around the body at a high spinning rate
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released energy is then received as a radio wave and converted by computer to create image
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Detailed explanation-1: -MRI is a type of diagnostic test that can create detailed images of nearly every structure and organ inside the body. MRI uses magnets and radio waves to produce images on a computer. MRI does not use any radiation. Images produced by an MRI scan can show organs, bones, muscles and blood vessels.
Detailed explanation-2: -An MRI system consists of four major components: a main magnet formed by superconducting coils, gradient coils, radiofrequency (RF) coils, and computer systems.
Detailed explanation-3: -It rotates about its axis and it rotates at a particular frequency.
Detailed explanation-4: -MR images are made without using any ionizing radiation, so patients are not exposed to the harmful effects of ionizing radiation.