MRI (Magnetic Resonance Imager)

Yoshinori SUZUKI  

IEICE TRANSACTIONS on Electronics   Vol.E78-C   No.5   pp.542-548
Publication Date: 1995/05/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: INVITED PAPER (Special Issue on Superconducting Electronics and Its Applications)
Category: Applications of small-size high field superconducting magnet
magnetic resonance imaging,  imaging principles,  flow imaging,  metabolite imaging,  temperature imaging,  

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MRI is a widely used diagnostic imaging modality because it has excellent diagnostic capabilities, is safe to use and generates images not affected by bone artifacts. Images are obtained by utilizing the phenomenon of Nuclear Magnetic Resonance (NMR) by which protons located in a static magnetic field absorb radiofrequency (RF) pulses with a specific frequency and release a part of the energy as a NMR signal. Potentially MRI has the ability to provide functional and metabolic information (such as flow, temperature, diffusion, neuron activity) in addition to morphological information. This paper describes the imaging principles and provides a general outline of some applications: flow imaging, metabolite imaging and temperature imaging.