Magnetic resonance imaging method

Details Magnetic resonance imaging method Magnetic resonance imaging method

2004-06-24

2008-03-11

Shrivastav, Brij (Department: 2859)

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

Reexamination Certificate

active

07342397

ABSTRACT:
A novel magnetic resonance imaging method is described, wherein undersampled magnetic resonance signals are acquired by a receiver antenna system having spatial sensitivity profiles and the image being reconstructed from the undersampled magnetic resonance signals and the spatial sensitivity profiles. The reconstruction of the image is provided by an optimization of a cost function which accounts for any of noise statistics, signal statistics, and the spatial response function, the latter of which is defined by the spatial signal response from the object to be imaged, separately for each individual pixel.

REFERENCES:
patent: 6289232 (2001-09-01), Jakob et al.
J. Tsao et al. “Minimum-norm Reconstruction for Optimal Spatial Response in High-Resolution SENSE Imaging” Proc. Intl. Soc. Mag. Reson. Med. 11 (2003), p. 14, XP-002296625.
K. Pruessmann et al. “SENSE: Sensitivity Encoding for Fast MRI” Magnetic Resonance in Medicine 42:952-962 (1999), pp. 952-962, XP-000866655.
U. Dydak et al. “The Spatial Response Function in SENSE-SI” Proc. Intl. Soc. Mag. Reson. Med. 8 (2000), p. 1848, XP-002296626.
J. Tsao et al. “Feedback Regularization for SENSE Reconstruction” Proc. Intl. Soc. Mag. Reson. Med. 10 (2002), XP-002296627.
X. Zhao et al. “Recursive SENSE for Reducing Artifacts in Sensitivity-Encoded Spectroscopic Imaging” Proc. Intl. Soc. Mag. Reson. Med. 10 (2002), XP-002296628.
U. Katscher et al. “Underdetermined SENSE Using a-priori Knowledge” Proc. Intl. Soc. Mag. Reson. Med. 10 (2002), XP-002297147.
International Preliminary Report On Patentability dated Jan. 3, 2006 for International Application No. PCT/CH2004/000386 filed Jun. 24, 2004 (8 pages).
Written Opinion of the International Searching Authority for International Application No. PCT/CH2004/000386 filed Jun. 24, 2004 (7 pages).

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