Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2008-07-29
2008-07-29
Shrivastav, Brij B. (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000, C324S310000, C324S318000
Reexamination Certificate
active
07405564
ABSTRACT:
A magnetic resonance method is described for forming a dynamic image from a plurality of signals of an object moving relative to at least one RF′ receiving antenna. Imaging is acquired by at least two adjacent fields of view (FOV), which are reconstructed to an image over a region of interest which includes both FOVs. Prior to imaging a sensitivity map of the at least one RF receiving antenna at each position relative to the object is determined for each FOV. Thereafter data from the object to be imaged is sampled for each FOV with a reduced number of phase encoding steps with respect to the full set thereof at a fixed position relative to the main magnetic field. The image is then reconstructed from the subsampled signals, which are weighted with the sensitivity factor of the RF receiving antenna at the respective imaging position.
REFERENCES:
patent: 5086275 (1992-02-01), Roemer
patent: 5398686 (1995-03-01), Inoue et al.
patent: 5636636 (1997-06-01), Kuhn et al.
patent: 7009396 (2006-03-01), Zhu et al.
patent: 7102351 (2006-09-01), Machida et al.
patent: 7205765 (2007-04-01), Machida et al.
patent: 2002/0021128 (2002-02-01), Kuhara
patent: 2003/0004408 (2003-01-01), Zhu
patent: 2004/0051529 (2004-03-01), Zhu et al.
patent: 2004/0263167 (2004-12-01), Machida et al.
patent: 2006/0058630 (2006-03-01), Harvey
patent: 2006/0197527 (2006-09-01), Machida et al.
patent: 0 390 476 (1990-10-01), None
patent: 1 024 371 (2000-08-01), None
patent: 1 398 642 (2004-03-01), None
patent: WO 99/53333 (1999-10-01), None
patent: WO 02/04971 (2002-01-01), None
Brittaiin, J.H., et al.; Whole-Body Imaging with a Continuously Moving Patient Table; 2002; Proc. Intl. Soc. Mag. Reson. Med.; 10:2336.
Kruger, D.G., et al.; Continuously Moving Table Data Acquisition Method for Long FOV Contrast-Enhanced MRA and Whole-Body MRI; 2002; MRM; 47:224-231.
Pruessmann, K.P., et al.; Coil Sensitivity Encoding for Fast MRI; 1998; Proc. ISMRM; p. 579.
Pruessmann, K.P., et al.; Coil Sensitivity Maps for Sensitivity Encoding and Intensity Correction; 1998; Proc. ISMRM; p. 2087.
Weiger, M., et al.; Cardiac Real-Time Acquisition Using Coil Sensitivity Encoding; 1998; Proc. ISMRM; p. 803.
Weiger, M., et al.; Accellerated Cardiac Breathhold Imaging Using Coil Sensitivity Encoding; 1998; Proc. ISMRM; p. 799.
Fetzner Tiffany A
Koninklijke Philips Electronics , N.V.
Shrivastav Brij B.
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