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Magnetic Resonance Imaging (MRI)
The process of signal generation and acquisition in magnetic resonance imaging consists of four stages.
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.
Contributed by:
Yuncong Ma
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References
[1] S. A. Huettel, A. W. Song, and G. McCarthy,
Functional Magnetic Resonance Imaging
, 2nd revised ed., Sunderland, MA: Sinauer Associates Inc., 2008.
[2] Wikipedia. "Basic Physics of Nuclear Medicine/MRI & Nuclear Medicine." (Mar 11, 2014)
en.wikibooks.org/wiki/Basic_Physics_of _Nuclear _Medicine/MRI_%26 _Nuclear _Medicine
.
PERMANENT CITATION
Yuncong Ma
"
Magnetic Resonance Imaging (MRI)
"
http://demonstrations.wolfram.com/MagneticResonanceImagingMRI/
Wolfram Demonstrations Project
Published: March 12, 2014
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