Suppression of artifacts in NMR images by correlation of two NEX

Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system

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324307, G01V 300

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057291403

ABSTRACT:
A method for removing artifacts from NMR images in which two NMR data sets S.sub.1 and S.sub.2 for two images of the region of interest are acquired. The correlation of the two data sets S.sub. and S.sub.2 is produced as part of the Fourier transformation image reconstruction process and a corrected image is reconstructed from the result. Modulations which are different in the two NMR data sets S.sub. and S.sub.2 are removed, while common signals produced by stationary structures contribute to the image.

REFERENCES:
patent: 4567893 (1986-02-01), Charles et al.
patent: 4663591 (1987-05-01), Pelc et al.
patent: 4706026 (1987-11-01), Pelc et al.
patent: 4715383 (1987-12-01), Ehman et al.
patent: 4731583 (1988-03-01), Glover et al.
patent: 4950991 (1990-08-01), Zur
patent: 5144235 (1992-09-01), Glover et al.
patent: 5151656 (1992-09-01), Maier et al.
patent: 5254948 (1993-10-01), Sano et al.
patent: 5363044 (1994-11-01), Xiang et al.
patent: 5581184 (1996-12-01), Heid
Respiratory Ordering of Phase Encoding (ROPE): A Method for Reducing Respiratory Motion Artifacts in MR Imaging, Bailes DR, Gilderdale DJ, Bydder GM J., Comput. Assist. Tomogr. 9, 835-38, (1985).
Cardiac Imaging Using Gated Magnetic Resonance, Lanzer P, Botvinick EH, Schiller NB, Radiology 150, 121,27 (1984).
Spatial Presaturation: A Method for Suppressing Flow Artifacts and Improving Depiction of Vascular Anatomy in MR Imaging, Felmlee JP, Ehman, RL, Radiology 164, 559-64, (1987).
Motion Artifact Suppression Technique (MAST) for MR Imaging, Pattany, PM, Phillips JJ, Chiu LC, J. Comput. Assist. Tomogr. 11, 369-77, (1987).
Comparison of Breath-hold Fast Spin-echo and Conventional Spin-echo Pulse Sequences for T2-weighted MR Imaging of Liver Lesions, Rydberg JN, Lomas DJ, Coakley KJ, Hough DM, Ehman RL, Riederer SJ, Radiology 194, 531-37, (1995).
A New Way of Averaging With Application to MRI, Madore B, and Henkelman RM, Med. Phys. 23(1), 109-12, (1996).
Two-point Interference Method for Suppression of Ghost Artifacts Due to Motion, Xiang QS, Bronskill MJ, and Henkelman RM, JMRI 3, 900-906, (1993).
Motion Artifact Reduction wth Three-Point Ghost Phase Cancellation, Xiang QS, Henkelman RM, JMRI 1, 933-42, (1992).
Ghost Phase Cancellation wth Phase-encoding Gradient Modulation, Hinks RS, Xiang QS, and Henkelman RM, JMRI 3, 777-85, (1993).
Aquistion Order and Motional Artifact Reduction of Spin Wrap Images MRM 6, 74-83 (1988), Dixon, et al.
"Crisscross" MR Images, Improved Resolution by Averaging Signals with Swapped Phase-encoding Axes, Radiology 1994, vol. 193, No. 1, 276279, Hamilton, et al.

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