Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2006-05-09
2006-05-09
Gutierrez, Diego (Department: 2859)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
Reexamination Certificate
active
07042214
ABSTRACT:
A method for designing non-linear phase 180° spectral-spatial radio frequency pulses that can be used for spectral editing in magnetic resonance spectroscopic imaging. A novel feature of the pulse is a symmetric sweep developed by the spectral profile from the outside edges of the spectral window towards the middle whereby coupled components are tipped simultaneously and over a short interval. Pulses have been designed for lactate editing at 1.5T and 3T. The spectral and spatial spin-echo profiles of the RF pulses can be measured experimentally and altered in an iterative manner. Spectral-spatial radio frequency (SSRF) pulses allow simultaneous selection in both frequency and spatial domains. These pulses are particularly important for clinical and research magnetic resonance spectroscopy (MRS) applications for suppression of large water and lipid resonances.
REFERENCES:
patent: 4760336 (1988-07-01), Conolly
patent: 4910483 (1990-03-01), Mitchell et al.
patent: 4940940 (1990-07-01), Leroux
patent: 5168229 (1992-12-01), Hurd et al.
patent: 5189371 (1993-02-01), Conolly et al.
patent: 5402067 (1995-03-01), Pauly et al.
patent: 5499629 (1996-03-01), Kerr et al.
patent: 5572126 (1996-11-01), Shinnar
patent: 6028428 (2000-02-01), Cunningham et al.
patent: 6069478 (2000-05-01), Hurd
patent: 6304084 (2001-10-01), Star-Lack et al.
Charles et al.; “High-Order Multiband Encading in the Heart”; Magnetic Resonance in Medicine 48, (2002), pp 689-698.
Hurd et al.; “Design of Symetric-Sweep Spectral-Spatial RF Pulses for Spectral Editing”; Magnetic Resonance in Medicine 52, (2004), pp 147-153.
Charles et al.; “Sequence Design for Magnetic Resonance Spectroscopic Imaging of Prostate Cancer at 3T”; Magnetic Resonance in Medicine 53, (2005), pp. 1033-1039.
Conolly et al., “Variable Rate Selective Excitation”, Journal of Magnetic Resonance, vol. 78, 440-458, 1988.
Cunningham et al., “Design of Symmetric-Sweep Spectral-Spatial RF Pulses for Spectral Editing”, Magn Reson Med. Jul. 2004;52 (1):147-53.
Cunningham et al., “Symmetric-Sweep Spectral-Spatial RF Pulses for Spectral Editing”, May 2004, 1 page.
Star-Lack et al., “In Vivo Lactate Editing with Simultaneous Detection of Choline Creatine, NAA, and Lipid Singlets at 1.5 T Using PRESS Excitation with Applications to the Study of Brain and Head and Neck Tumors”, Journal of Magnetic Resonance, vol. 133, 243-254, 1998.
Cunningham Charles H.
Pauly John M.
Vigneron Daniel B.
Beyer Weaver & Thomas LLP
Gutierrez Diego
The Board of Trustees of the Leland Stanford Junior University
The Regents of the University of California
Vargas Dixomara
LandOfFree
Non-linear symmetric sweep spectral-spatial RF pulses for MR... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Non-linear symmetric sweep spectral-spatial RF pulses for MR..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Non-linear symmetric sweep spectral-spatial RF pulses for MR... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3571367