An algorithm for eddy currents symmetrization and compensation

Magnetic Resonance in Medicine

Volumn 35, Issue 2, 1996, Pages 252-260

  Zur, Yuval ^a   Stokar, Saul ^a  

^a Elscint MRI Center   (Israel)

Author keywords

eddy currents compensation; eddy currents symmetrization; high order harmonics; R C filters

Indexed keywords

HARMONIC ANALYSIS; ITERATIVE METHODS; MAGNETIC RESONANCE IMAGING;

COMPENSATION ALGORITHM; COMPENSATION PROCESS; GRADIENT COIL; HIGH ORDER HARMONICS; IMAGING VOLUME; ODD HARMONICS; PULSED MAGNETIC FIELDS; RC FILTER;

EDDY CURRENTS;

ALGORITHM; ARTICLE; FILTER; MAGNETIC FIELD; MEASUREMENT; NUCLEAR MAGNETIC RESONANCE IMAGING; THEORY;

EID: 0030047723     PISSN: 07403194     EISSN: None     Source Type: Journal    
DOI: 10.1002/mrm.1910350218     Document Type: Article

References (11)

1. H. Elgoff, U.S. Patent 4,920,316, 1990.
2. J. J. Van Vaals, A. H. Bergman, Optimization of eddy-current compensation. J. Magn. Reson. 90, 52-70 (1990).
3. P. Jehenson, M. Westphal, N. Schuff, Analytical method for the compensation of eddy-current effects induced by pulsed magnetic field gradients in NMR systems. J. Magn. Reson. 90, 264-278 (1990).
4. P. B. Roemer, W. A. Edelstein, J. S. Hickey, Self shielded gradient coils, in "Proc., SMRM, 5th Annual Meeting, 1986," p. 1067.
5. D. J. Jensen, W. W. Brey, J. L. Delayre, P. A. Narayana, Reduction of pulsed gradient settling time in the superconducting magnet of magnetic resonance instrument. Med. Phys. 14, 859-862 (1987).
6. Y. Zur, S. Stokar, R. Morad, An automated algorithm for eddy-current compensation, in "Proc., SMRM, 11th Annual Meeting. 1992," p. 363.
7. C. B. Ahn, Z. H. Cho, Analysis of eddy currents in nuclear magnetic resonance imaging. Magn. Reson. Med. 17, 149-163 (1991).
8. R. N. Bracewell, "The Fourier Transform and Its Applications," McGraw-Hill, New York, 1986.
9. W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, "Numerical Recipes," p. 523. Cambridge University Press, New York, 1989.
10. M. A. Morich, D. A. Lampman, W. R. Dannels, F. T. D. Goldie, Exact temporal eddy current compensation in magnetic resonance Imaging systems. IEEE Trans. Med. Imaging 7, 247-254 (1988).
11. M. Sekihara, M. Kuroda, and H. Kohno, Image restoration from non-uniform magnetic field influence for direct Fourier NMR imaging. Phys. Med. Biol. 29, 15-24 (1984).