Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Reexamination Certificate
2007-05-25
2010-10-26
Shrivastav, Brij B (Department: 2831)
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
C324S309000
Reexamination Certificate
active
07821262
ABSTRACT:
In a method as well as a magnetic resonance tomography apparatus for implementation of such a method for improved sensitivity-encoded magnetic resonance imaging using a two-dimensional or three-dimensional acquisition coil array, two-dimensional or three-dimensional undersampling of k-space is undertaken by measurement of a number N of basic partial trajectories τnin k-space that in their entirety form a geometric arrangement of source points, a number M of different operators Cm(Δkm) are determined, with each operator representing an algebraic transformation with which unmeasured target points at an interval Δkmfrom one of the measured source points are synthesized from a number of measured source points, the operators Cm(Δkm) are applied to at least one subset of the measured source points for at least partial completion of the magnetic resonance data set, and a largely artifact-free image is reconstructed in three-dimensional space on the basis of the measured source points and the synthesized data points.
REFERENCES:
patent: 5329598 (1994-07-01), Geist
patent: 6411670 (2002-06-01), Besson
patent: 7102348 (2006-09-01), Zhang et al.
patent: 7688068 (2010-03-01), Beatty
patent: 2006/0028206 (2006-02-01), Zhang et al.
patent: 2008/0279433 (2008-11-01), Brau et al.
“Advances in Locally Constrained k-Space-Based Parallel MRI,” Samsonov et al. Magnetic Resonance in Medicine, vol. 55 (2006) pp. 431-436.
“Improved Data Reconstruction Method for GRAPPA,” Wang et al., Magnetic Resonance in Medicine, vol. 54 (2005) pp. 738-742.
“Auto-Calibrated Parallel Spiral Imaging,” Heberlein et al., Magnetic Resonance in Medicine, vol. 55 (2006) pp. 619-625.
“k-t GRAPPA: A k-space Implementation for Dynamic MRI with High Reduction Factor,” Huang et al., Magnetic Resonance in Medicine, vol. 54 (2005) pp. 1172-1184.
Autocalibrated Coil Sensitivity Estimation for Parallel Imaging, Griswold et al., NMR in Biomedicine, vol. 19 (2006) pp. 316-324.
“Encoding and Reconstruction in Parallel MRI,” Pruessmann, NMR in Biomedicine, vol. 19 (2006) pp. 288-299.
Kannengiesser Stephan
Loeffler Ralf
Mueller Edgar
Schmitt Peter
Schiff & Hardin LLP
Shrivastav Brij B
Siemens Aktiengesellschaft
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