NMR angiography using fast spin echo pulse sequences

Details NMR angiography using fast spin echo pulse sequences NMR angiography using fast spin echo pulse sequences

1992-07-29

1994-01-25

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324300, 324306, G01R 3320

Patent

active

052819167

ABSTRACT:
An NMR angiogram is produced from two data sets acquired using a fast pulse sequence. One data set is acquired with a readout gradient having a first moment of zero at each refocusing pulse and a first value at each acquired echo signal. A second data set is acquired with a readout gradient having a first moment of zero at each refocusing pulse and a second value at each acquired echo signal. Signals from stationary tissues are suppressed with a dephasing gradient pulse in the slice select direction applied after each refocusing pulse, and a corresponding rewinder gradient pulse is applied after each acquired echo signal.

REFERENCES:
patent: 4683431 (1987-07-01), Pattany et al.
patent: 4718424 (1988-01-01), Nishimura
Contrast Manipulation and Artifact Assessment of 2D and 3D Rare Sequences, Magnetic Resonance Imaging, vol. 8 pp. 557-566, 1990, R. V. Mulkern, et al.
Three-Dimensional Phase Contrast Angiography, Magnetic Resonance in Medicine 9, 139-149 (1989), C. L. Dumoulin, et al.
Encoding Strategies for Three-Direction Phase-Contrast MR Imaging of Flow.sup.1, JMRI 1991: 1:405-413, N. J. Pelc, et al.
Comparison of Phase-Difference and Complex-Difference Processing in Phase-Contrast MR Angiography.sup.1, JMRI 1991: 1:725-729, M. A. Bernstein, et al.
Projection Angiograms of Blood Labeled by Adiabatic Fast Passage, Magnetic Resonance In Medicine 3, 454-462 (1986), W. T. Dixon, et al.
Rare Imaging: A Fast Imaging Method for Clinical MR, Magnetic Resonance In Medicine 3, 823-833 (1986), J. Hennig, et al.

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