Electricity: measuring and testing – Particle precession resonance – Using a nuclear resonance spectrometer system
Patent
1991-08-13
1993-09-07
Tokar, Michael J.
Electricity: measuring and testing
Particle precession resonance
Using a nuclear resonance spectrometer system
324307, G01R 3320
Patent
active
052432858
ABSTRACT:
Two-dimensional nuclear magnetic resonance spectroscopy with a frequently repeated sequence comprises four high-frequency pulses and acting together with a homogeneous stationary magnetic field upon an examination area, which sequence contains two 180.degree. pulses, halfway between which a third pulse is located. The pulse of the sequence are preceded by a first pulse, whose distance from the second pulse, which is equal to or larger than the relative distance of the other pulses, is varied during the repetition of the sequence. This method is particularly suitable for in vivo examinations of the human body in that during three of the four pulses magnetic gradient fields are operative, whose gradients extend mutually perpendicular to each other, and before and after the third high-frequency pulse a magnetic gradient field is operative having such a duration and such a gradient that the time integral across this field has the same value before the third pulse as after the third pulse.
REFERENCES:
patent: 4771242 (1988-09-01), Lampman et al.
patent: 4789832 (1988-12-01), Nagayama
patent: 4823084 (1989-04-01), McKinnon
patent: 4862083 (1989-08-01), McKinnon et al.
patent: 4868503 (1989-09-01), McKinnon et al.
patent: 4918387 (1990-04-01), McKinnon et al.
patent: 5027072 (1991-06-01), Rinaldi
patent: 5049820 (1991-09-01), Briand
patent: 5111143 (1992-05-01), McKinnon et al.
G. C. McKinnon & P. Bosiger, "Localized Double-Quantum Filter and Correlation Spectroscopy Experiments", Magnetic Resonance in Medicine, vol. 6, (1988), pp. 334-343.
Springer-Verlag, "Modern Techniques in High-Resolution FT-NMR", Book of Chandrakumar/Subramanian, pp. 177-181.
Bosiger Peter
McKinnon Graeme
Mah Raymond Y.
Slobod Jack D.
Tokar Michael J.
U.S. Philips Corp.
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