Method and apparatus for fast imaging by nuclear magnetic...

Details Method and apparatus for fast imaging by nuclear magnetic... Method and apparatus for fast imaging by nuclear magnetic...

2005-11-15

2005-11-15

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

C324S307000

Reexamination Certificate

active

06965233

ABSTRACT:
In the acquisition of NMR signals in FSE or fast spin echo type sequences the emission phase of the 180° refocusing pulse evolves quadratically. In order to prevent problems of oscillation of the output signal, the sequence is subjected to a preparation pulses. A history is provided for the common difference of the quadratic sequence of the phase variation with respect to the first seven refocusing pulses. This history leads to an immediate thermal equilibrium.

REFERENCES:
patent: 4697148 (1987-09-01), Strobel et al.
patent: 5623207 (1997-04-01), Weissenberger et al.
patent: 6008647 (1999-12-01), Zhou et al.
patent: 6011392 (2000-01-01), Zhou et al.
patent: 6137289 (2000-10-01), Goto
patent: 6265873 (2001-07-01), Le Roux
patent: 2003/0189425 (2003-10-01), Le Roux
patent: 0158965 (1985-10-01), None
P. Leroux, “Spin Echoes Nithaquapratic Phase Modulation . . . ”, Proc, Intl. Soc. Mas. Reson. Med 9 (2001) p. 1788.
P.Leroux, “Progress in Non-CPMG Fast Spinecho”, Proc. Intl Soc. Mag. Reson. Med. 7 (1999) p 1-2.
V. N. Ikonomidou et al, “Improved Shinnar-Le Roax Algorithm”, J. Mag. Reson. 143, p 30-34 (2000).
P. Leroux, “Non-OPMG Fast Spin Echo yn Practice”, Proc Intl. Soc Mag. Reson. Med 8 (2000) p 1-2.
Wan, X et al, “Reduction of Phase Error Ghosting Artifacts”, Magnetic Resonance in Medicing, vol. 34, No. 4, 1995, pp 632-638.
Norris et al, “On The Application of Ultra•Fast Rare Experiments”, Magnetic Resonance in Medicine, vol. 27, No. 1, 1992, pp 142-164.
Alsop, “The Sensitivity of Low Flip Angle Rare Imaging”, Magnetic Resonance in Medicine, vol. 37, pp. 176-184.

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