Magnetic resonance imaging

Details Magnetic resonance imaging Magnetic resonance imaging

1989-01-24

1990-08-14

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01R 3320

Patent

active

049490419

ABSTRACT:
Motion insensitive magnetic resonance scanning is provided when generating a signal from spins of a selected portion of a subject by acquiring a truncated signal comprising most of the signal's central portion and one wing of the usual two wings. Full image data is obtained by conjugating the truncated signal. The image thus obtained is relatively motion insensitive.

REFERENCES:
patent: 4616180 (1986-10-01), Compton
patent: 4697149 (1987-09-01), Moran
patent: 4800889 (1989-01-01), Dumoulin
Feinberg et al., Journal of Radiology, Halving MR Imaging Time by Conjugation: Demonstration at 3.5 kg: vol. 161, pp. 527-531, 1986.
Pattany et al., Journal of Computer Assisted Tomography, Motion Artifact Suppression Technique (MAST) for MR Imaging, pp. 369-377; 1987.
Purdy et al., a Double Phase Correction/Hermitian Conjugation Procedure Improves the Quality of Half-Fourier Images.

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