Magnetic resonance apparatus utilizing time-varying rate of...

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

Reexamination Certificate

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C324S314000

Reexamination Certificate

active

07852076

ABSTRACT:
The present invention provides a magnetic resonance imaging system capable of performing spectrum measurement even when a magnetic resonant frequency changes during MRS measurement. A time-varying rate of a water magnetic resonant frequency is measured in advance before the MRS measurement. The amount of change in water magnetic resonant frequency during the MRS measurement is predicted from the measured time-varying rate. With the predicted value as the reference, a transmission frequency of an RF magnetic field irradiated in a signal suppression pulse sequence, a transmission frequency of an RF magnetic field for excitation and inversion and a received frequency at the detection of a magnetic resonance signal in a sequence of the MRS measurement are respectively set. A high-precision spectrum measurement is hence enabled.

REFERENCES:
patent: 3287629 (1966-11-01), Varian
patent: 3501688 (1970-03-01), Nelson
patent: 4689566 (1987-08-01), Maudsley
patent: 6552539 (2003-04-01), Uetake
patent: 7042215 (2006-05-01), Moriguchi et al.
patent: 7215119 (2007-05-01), Kruger et al.
patent: 7233143 (2007-06-01), Moriguchi et al.
patent: 7355405 (2008-04-01), Hirata et al.
patent: 7420368 (2008-09-01), Miyazaki
patent: 7518362 (2009-04-01), Hirata et al.
patent: 2005/0033153 (2005-02-01), Moriguchi et al.
patent: 2005/0248343 (2005-11-01), Kruger et al.
patent: 2006/0255802 (2006-11-01), Hirata et al.
patent: 2007/0241754 (2007-10-01), Hirata et al.
patent: 60-222043 (1985-11-01), None
patent: 63-230156 (1988-09-01), None
patent: 63-292950 (1988-11-01), None
patent: 11-76191 (1999-03-01), None
patent: 2001-299720 (2001-10-01), None
patent: 2002-291718 (2002-10-01), None
patent: 2003-19124 (2003-01-01), None
David G. Norris et al., “Fast Proton Spectroscopic Imaging Using the Sliced k-Space Method”, MRM 30;641-645 (1993).
Joseph Granot et al., “Selected Volume Excitation Using Stimulated Echoes (VEST). Applications to Spatially Localized Spectroscopy and Imaging”, Journal of Magnetic Resonance, 70, 488-492 (1986).

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