Method for the removal of artifacts in an NMR imaging experiment

Details Method for the removal of artifacts in an NMR imaging experiment Method for the removal of artifacts in an NMR imaging experiment

1988-07-06

1990-05-15

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

128653A, G01R 3320

Patent

active

049261240

ABSTRACT:
So-called motion artifacts are removed in NMR imaging experiments by choosing a 2DFT type imaging method and by choosing a phase encoding pitch, which is a multiple of a useful encoding pitch determined by the height of the image field to be depicted. It is shown that, after the image reconstruction has been computed by Fourier transform, the central image corresponds to the depiction of the continuous components of the magnetic moments of the particles located in an examined cross-section of a body under examination, and that these continuous components are not affected by all the variations in the rate of a cyclical phenomenon which disturbs the images (in general the cardiac cycle).

REFERENCES:
patent: 4644280 (1987-02-01), Paltiel
patent: 4663591 (1987-05-01), Pelc
patent: 4682108 (1987-07-01), Stetter et al.
patent: 4710717 (1987-12-01), Pelc et al.
patent: 4724386 (1988-02-01), Haacke et al.

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