Reduction of truncation caused artifacts

Details Reduction of truncation caused artifacts Reduction of truncation caused artifacts

1992-04-27

1994-02-08

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

052851575

ABSTRACT:
Elimination of truncation artifacts in Magnetic Resonance Images is accomplished by analaytically optimizing controllable parameters; i.e., filter characteristic and assymetry ratio when asymetrically sampling arid time domain filtering followed by complex conjugating the filtered data to reduce the Gibbs artifact.

REFERENCES:
patent: 4888522 (1989-12-01), Weingart
patent: 4950991 (1990-08-01), Zur
patent: 4973111 (1990-11-01), Haacke et al.
"The Fourier Transform and its Application" by R. Bracewell. published by McGraw Hill (1965) pp. 209 et seq.
"Digital Filters" by R. W. Hamming, published by Prentice Hall, Inc., at 171 et seq, (1983).

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