proton magnetic resonance spectroscopic imaging
Synonyms: proton MR spectroscopic imaging, 1H-nuclear magnetic resonance spectroscopic imaging., magnetic resonance spectroscopy (MRS), magnetic resonance spectroscopic imaging (MRSI)
Definition: 
(REZ-uh-nuns) An imaging method of detecting and measuring activity at the cellular level. It provides chemical information and is used in conjunction with magnetic resonance imaging (MRI), which gives spatial (3-dimensional) information.
See proton.
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