Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1987-04-08
1988-06-21
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324306, G01R 3320
Patent
active
RE0327018
ABSTRACT:
An NMR zeugmatographic scanner is modified to produce flow images. A motion sensitizing gradient field is applied to the gyromagnetic nuclei after transverse excitation and prior to emission measurement. The motion sensitized free induction signal which results is processed using an inverse Fourier transformation to produce a number of useful images.
REFERENCES:
patent: 4015196 (1977-03-01), Moore et al.
patent: 4021726 (1977-05-01), Garroway et al.
patent: 4070611 (1978-01-01), Ernst
patent: 4115730 (1978-09-01), Mansfield
patent: 4254778 (1981-03-01), Clow et al.
patent: 4284950 (1981-08-01), Burl et al.
patent: 4297637 (1981-10-01), Crooks
patent: 4318043 (1982-03-01), Crooks et al.
patent: 4319190 (1982-03-01), Brown
patent: 4339716 (1982-07-01), Young
patent: 4339718 (1982-07-01), Bull et al.
patent: 4345207 (1982-08-01), Bertrand et al.
patent: 4354157 (1982-10-01), Feiner
patent: 4355282 (1982-10-01), Young et al.
patent: 4431968 (1984-02-01), Edelstein et al.
patent: 4443760 (1984-04-01), Edelstein et al.
patent: 4451788 (1984-05-01), Edelstein et al.
patent: 4471305 (1984-09-01), Crooks et al.
patent: 4471306 (1984-09-01), Edelstein et al.
patent: 4509015 (1985-04-01), Ordidge et al.
patent: 4516075 (1985-05-01), Moran
patent: 4528985 (1985-07-01), Macovski
"The NMR Blood Flowmeter-Theory and History", Battocletti et al., Med Phys. 8(4), Jul./Aug. 1981, pp. 435-443.
"Applications de la Resonance Magnetique Nucleaire en Hemodynamique(*)", A. Constantiensco et J. Chambron, (Jan. 23, 1981), pp. 127-134.
"NMR Rheotomography: Feasibility and Clinical Potential"-Grant et al., Med Phys. 9(2), Mar./Apr. 1982, pp.188-193.
Packer, K. J.; Rees, C. and Tomlinson, D. J., "A Modification of the Pulsed Magnetic Field Gradient Spin Echo Method of Studying Diffusion," Molecular Physics, 1970, vol. 18(3):421-423.
Kaufman, L. et al., "The Potential Impact of Nuclear Magnetic Resonance Imaging on Cardiovascular Diagnosis," Circulation, An Official Journal of the American Heart Association, Inc., Feb., 1983, 67(2):251-257.
Kaufman, Leon et al., "Evaluation of NMR Imaging for Detection and Quantification of Obstructions in Vessels," Investigative Radiology, Nov.-Dec., 1982, 17(6):554-560.
Hilal et al., "Special Project II-Studies of Two-Dimensional Blood Flow Using Nuclear Magnetic Resonance", a 377 page proposal submitted to the Dept. of Health, Education and Welfare, pp. 208-229.
J. R. Singer, "NMR Diffusion and Flow Measurements and An Introduction to Spin Phase Graphing", The Institute of Physics, pp. 281-291.
"Basic Concepts for Nuclear Magnetic Resonance Imaging"-Fullerton Magnetic Resonance Imaging, vol. 1, pp. 39-53, 1982.
Torrey, H. C., "Bloch Equations with Diffusion Terms", Phys. Rev., 1956, 104:563.
Singer, J. R., "Blood Flow Rates by NMR Measurements," Science, 1959, 130:1652.
Abragam, A., "The Principles of Nuclear Magnetism," London, Oxford University Press, 1961, pp. 58-63.
Stejskal and Tanner, "Spin Diffusion Measurements-," Jour. Chem. Phys., 1965, 42(1):288-292.
Stejskal, E. O., "Use of Spin Echoes in a Pulsed Magnetic Field Gradient to Study Anisotropic, Restricted Diffusion and Flow," Jour. Chem. Phys., 1965, 43(10):3597-3603.
Hahn, Erwin, "Detection of Sea-Water Motion by Nuclear Precession," Jour. Geophys. Res., Feb., 1960, 65(2):776-777.
Packer, K. J., "The Study of Slow Coherent Molecular Motion by Pulsed Nuclear Magnetic Resonance," Molecular Physics, 1969, 17(4):355-368.
Grover, Thomas Peaks; Ph.D. Dissertation, Dept. EE, U.C. Berkeley (examiners Singer, Woodyard and Hahn), Jun. 15, 1971.
Hayward, R. J.; Packer, K. J.; Tomlinson, D. J., "Pulsed Field-Gradient Spin-Echo NMR Studies of Flow in Fluids," Molecular Physics, 1972, 23(6):1083-1102.
Garroway, G. N. "Velocity Measurements in Flowing Fluids by NMR," Jour. Phys. D: Appl. Phys., 1974, vol. 7, pp. L159-L163.
Libove, Joel, "Instrumentation for Imaging of Fluid Flow Using Nuclear Magnetic Resonance With an Example of One-Dimensional Flow Imaging," Doctoral Dissertation.
Fukuda and Hirai, "A Pulsed NMR Study of the Flow in Fluid," Journal of the Physical Society of Japan, Dec., 1979, 47(6):1999-2006.
Singer, J. R. and Crooks, L. E., "NMR Flow Imaging," Proc. Int. Symp. on NMR Imaging, Bowman Gray School of Medicine, Oct., 1981, pp. 185-190.
Mansfield, P. and Morris, P. G., "NMR Imaging in Biomedicine," pp. 235-238.
Van As, H, and Schaafsma, T. J., "Non-Invasive Blood Flow Measurements By the .sup.1 H NMR .pi.-Pulse Method," Society of Magnetic Resonance in Medicine, First Annual Meeting, Aug. 16-18, 1982, Boston, Massachusetts, pp. 147-148.
Crooks, L. et al., "Physical Basis of Nuclear Magnetic Resonance Imaging," IEEE Transactions of Nuclear Science, vol. NS-29, Nos. 3, Jun., 1982, pp. 1252-1257.
Deville, G. and Landesman, A., "Experiences D'Echoes de Spins Dans Un Liquide En Ecoulement," Le Journal De Physique, Jan., 1971, pp. 67-72.
Grover, Thomas and Singer, J. R., "NMR Spin-Echo Flow Measurements," Journal of Applied Physics, Mar. 1, 1971, 43(3):938-939.
Grover, Thomas and Singer, J. R., "Recent Measurements of Flow Using Nuclear Magnetic Resonance Techniques," Modern Developments in Flow Measurements, Sep., 1971, pp. 38-46, Proc. the Harwell (Berks, England) Conference, Ed. CG Clayton (The Harwell Atomic Energy Establishment. Peter Perigrinin, Ltd., pub).
Pykett, I. L. and Mansfield, P., "A Line Scan Image Study of a Tumorous Rat Leg by NMR," Phys. Med. Biol., 1978, vol. 23, No. 5, pp. 961-967.
Hahn, E. L., "Spin Echoes," Physical Review, Nov. 15, 1950, vol. 80(4):580-594.
Carr, H. Y. and Purcell, E. M., "Effects of Diffusion on Free Precession in Nuclear Magnetic Resonance Experiments," May 1, 1954, vol. 94(3):630-639.
Tokar Michael J.
Wisconsin Alumni Research Foundation
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