Nuclear magnetic resonance signal artifact removal

Details Nuclear magnetic resonance signal artifact removal Nuclear magnetic resonance signal artifact removal

1983-11-09

1986-10-07

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

G01V 293

Patent

active

046161821

ABSTRACT:
In an NMR imaging system, two-pulse excitation sequences are used to acquire lines of NMR signal information. Artifact signal components may also be present during the times of NMR signal acquisition. In order to remove these artifacts from the center of the image, the artifact signals are alternately phase-encoded from line to line by alternating the phase of one of said excitation pulses from line to line. Fourier transformation is performed on the lines of information in at least the direction of alternate phasing of the artifact components, which relocates the artifacts to the edge of the resulting image.

REFERENCES:
patent: 4301410 (1981-11-01), Wind
patent: 4318043 (1982-03-01), Crooks
"Suppression of Artifacts in Two Dimensional J Spectroscopy" by Bodenhausen et Alia, Journal of Magnetic Resonance (1977) pp. 511-514.

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