Psych M.D. - MRI


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Term:MRI (Magnetic Resonance Imaging)
Definition (Myers): a technique that uses magnetic fields and radio waves to produce computer-generated images that distinguish among different types of soft tissue1
Definition (alternative): Magnetic resonance imaging (MRI), or nuclear magnetic resonance imaging (NMRI), is primarily a medical imaging technique most commonly used in radiology to visualize the structure and function of the body. It provides detailed images of the body in any plane. 2
Contextual explanation: MRI is the big machine that you see on TV shows such as House or Grey's Anatomy. It kind of looks like a giant coffin, except the patient lies down on this narrow bed and is slid into the doughnut shaped hole of the MRI. MRI provides pictures of the patient's insides, but it gives a much clearer picture than x-rays or CT scans do because it uses "a powerful magnetic field to align the nuclear magnetization of (usually) hydrogen atoms in water in the body".2
Related terms and concepts:
X-rays
CT Scans
Radiology
(all yet to be mentioned in psych md)
MRI3

MRI scan of a knee4
Related websites:
http://en.wikipedia.org/wiki/Magnetic_resonance_imaging
http://www.cis.rit.edu/htbooks/mri/inside.htm
Sources:
1. Myers, D. G. (2004). Psychology. New York, New York: Worth Publishers.
2. Magnetic resonance imaging. In Wikipedia Online. Retrieved from http://www.en.wikipedia.org/wiki/Magnetic_resonance_imaging
3. http://ipohmom.files.wordpress.com/2009/09/mri2_pnmk.jpg
4. http://www.ganfyd.org/images/thumb/f/f4/Mri_knee.jpg/350px-Mri_knee.jpg
Edited by: Soomin



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