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What is it
“Magnetic Resonance Imaging”
Def: “Uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body”
History
1937-Isidor Rabi Observed nuclear
magnetic resonance (NMR)
Used for substances (not the human body)
History
Raymond Damadian Wanted to find out a way
to examine inner body 1969- used NMR
machine for electrically charged particles in the body
1970- tested cancerous cells from rats with the NMR machine
Wrap coils around the body
Procedure
Put on exam table Depending on the type of exam,
contrast may be used Need to stay still during the exam During exam, machine will make
noises Includes multiple runs Depending on type of exam, they
usually run from 15 to 45 minutes Radiologist will interpret the results
Problems
Remain still during exam Pregnant women advised not to use May not always distinguish between
cancer tissue and fluid Costs and time
References
Staff, Mayo Clinic. "Definition." Mayo Clinic. Mayo Foundation for Medical Education and Research, 09 Aug. 2012. Web.
http://www.mayoclinic.com/health/mri/MY00227
"MRI of the Body (Chest, Abdomen, Pelvis)." Body MRI. N.p., n.d. Web.
http://www.radiologyinfo.org/en/info.cfm?pg=bodymr
"What Is Magnetic Resonance Imaging (MRI)?" WebMD. WebMD, n.d. Web.
http://www.webmd.com/a-to-z-guides/magnetic-resonance-imaging-mri Wakefield, Julie. "The "Indomitable" MRI."
Smithsonian Magazine. N.p., n.d. Web. http://www.smithsonianmag.com/science-
nature/object_jun00.html?c=y