Method for the identification of nuclear magnetic spectra from s

Details Method for the identification of nuclear magnetic spectra from s Method for the identification of nuclear magnetic spectra from s

1988-07-08

1989-03-28

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01R 3320

Patent

active

048167649

ABSTRACT:
A method for identifying nuclear magnetic spectra from spatially selectable regions of an examination subject obtains an optimally unattenuated FID signal by the steps of cancelling the magnetization present due to the fundamental magnetic field in volume regions of the examination subject which are not to be evaluated, subjecting the examination subject to a non-selective RF read-out pulse which deflects at least the nuclear spins in the examination regions to be selected, and reading out the resulting FID signal following the non-selective RF read-out pulse. The selected examination region is determined by the transmission/reception characteristics of the coil which receives the FID signal minus the selectively saturated volume region.

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patent: 4471306 (1984-09-01), Edelstein
patent: 4480228 (1984-10-01), Bottomley
patent: 4506223 (1985-03-01), Bottomley
patent: 4629988 (1986-12-01), Bottomley
"Depth-Resolved Surface-Coil Spectroscopy (DRESS) for in Vivo .sup.1 H, .sup.31 P, and .sup.13 C NMR," Bottomley et al., J. Mag. Res. vol. 59, (1984) pp. 338-342.
"Magnets, Molecules & Medicine," Gordon, Phys. Med. Biol., vol. 30, No. 8, Aug. 1985, pp. 741-770.
"Experimental Pulse NMR," Fukushima et al., 1981, pp. 174-176.

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