Magnetic Resonance Imaging (MRI)

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The process of signal generation and acquisition in magnetic resonance imaging consists of four stages.

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1. The magnetic gradient along the axis selects a slice of the object. The protons in this slice are excited by a radiofrequency pulse.

2. The magnetic gradient along the axis achieves phase encoding of the protons in the selected slice.

3. The magnetic gradient along the axis produces a frequency encoding.

4. The signals emitted by the protons are detected, and an image of the object is synthesized by a computer program.

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Contributed by: Yuncong Ma (March 2014)
Open content licensed under CC BY-NC-SA


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