Title:
APPARATUS AND METHODS FOR SPATIAL ENCODED MRI
Document Type and Number:
WIPO Patent Application WO2001040827
Kind Code:
A9
Abstract:
There is featured a method for parallel spatial encoding MR image data that is frequency-encoded and sensitivity-encoded that includes applying an analytical transform function (200) to generate weighting coefficients for a given spatial harmonic order and detector index; acquiring partial gradient phase encoded signals (202); generating linear combinations of the frequency-encoded and sensitivity-encoded MR image data to generate a set of spatial harmonics (206) that can encode spatial frequencies; and applying at least a 1D Fourier transform to a k-space data set in which spatial frequency dimensions are fully encoded, thereby resulting in an MR image (210) of an observed object. The method includes synchronizing the phase of MR image data signals (204) to remove spatially-dependent phase errors using for example Fourier-Hilbert Transforms. The method yet further includes combining harmonics (208) and demodulating the modulation of generated (206) high order harmonics. Also featured are systems, apparatuses and other processing methods.
Inventors:
LEE RAY F
Application Number:
PCT/US2000/032714
Publication Date:
May 23, 2002
Filing Date:
December 01, 2000
Export Citation:
Assignee:
UNIV JOHNS HOPKINS (US)
International Classes:
G01R33/54; G01R33/561; G01R33/56; (IPC1-7): G01V3/00; G01R33/20
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