Magnetic Resonance Imaging (MRI) | UPSC

MRI scanners utilize strong magnetic fields to align protons in bodily tissues, similar to compass needles.

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Radio waves then excite these protons, causing them to absorb energy and shift to higher energy levels.

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As protons return to their original state, they release radio signals detected by the machine.

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Variations in these signals based on tissue type allow for the creation of detailed internal body images.

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MRI is a vital diagnostic tool, providing intricate views without harmful radiation unlike X-rays.

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