Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1988-02-18
1989-07-25
Levy, Stewart J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324309, G01R 3320
Patent
active
048517798
ABSTRACT:
An incomplete set of three dimensional magnetic resonance data is collected and stored in acquired data memory (40). The incomplete data set is complete with respect to first and second directions and incomplete with respect to a third direction. However, the acquired data set has data along the third direction between .+-.n central values and half the remaining values. One dimensional inverse Fourier transforms (64, 66) are performed with respect to the first and second directions to create an intermediate data set (68). A phase correction array or plurality of phase correction vectors p(r) are generated from the intermediate data and stored in a phase correction memory (82). A symmetric data set (100) is created as the complex conjugate of the intermediate data set. The intermediate and symmetric data sets are one dimensionally inverse Fourier transformed (96, 104) with respect to the third direction one vector at a time to produce vectors of first and second complex image arrays (f.sub.A, f.sub.S) corrected (96, 108) with the corresponding phase correction vector, and combined (110) into a line of a resultant three dimensional image representation (112).
REFERENCES:
patent: 4694251 (1987-09-01), Yoshitome et al.
patent: 4728893 (1988-03-01), Feinberg
patent: 4767991 (1988-08-01), Rzedzian
"Faster MR Imaging: Imaging with Half the Data" by Margosian, et al., Health Care Instrumentation, vol. 1, No. 6, 1986, pp. 195-197.
"Faster MR Imaging-Imaging with half the data" by Paul Margosian, Society of Magnetic Resonance in Medicine, 4th Annual Meeting, Aug. 19-23, 1986, London, pp. 1024-1025.
"Field Inhomogeneity Correction and Data Processing for Spectroscopic Imaging" by Maudsley, et al., Magnetic Resonance in Medicine, 2, 1985, pp. 218-233.
"Direct Fourier Transform NMR Tomography with Modified Kumar-Welti-Ernst (MKWE) Method" by Song, et al., IEEE Transactions on Nuclear Science, vol. NS-29, No. 1, Feb. 1982.
"Magnetic field measurement by NMR imaging" by Maudsley, et al., The Institute of Physics, 1982, pp. 216-220.
"A New method of measuring static field distribution using modified Fourier NMR imaging" by Sekihara, et al., The Institute of Physics, 1985, pp. 224-227.
"MR Images from on Quarter of the data: Combination of Half Fourier Methods with a Linear Recursive Data Extrapolation" by P. Margosian, Book of Abstracts, Society of Mag. Res. In Medicine, Annual Meeting, Aug. 1987.
"RARE Imaging: A Fast Imaging Method for Clinical MR" by Henning, et al., Mag. Res. in Medicine, 3, pp. 823-833 (1986).
"Phase Encoded, Rapid, Multiple Echo (PERME) Nuclear Magnetic Resonance Imaging" by Lawton, Aug. 1985.
"Exploiting the Stimulated Echo in NMR Imaging" by Sattin, for NVR, Picker Clinical Science Center, vol. 2, No. 1, Feb. 1987, pp. 18-21.
Bearden Francis H.
DeMeester Gordon D.
Holland G. Neil
Levy Stewart J.
O'Shea Kevin D.
Picker International Inc.
LandOfFree
Three dimensional volume imaging with conjugate symmetrization does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Three dimensional volume imaging with conjugate symmetrization, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three dimensional volume imaging with conjugate symmetrization will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2360978