Method and apparatus for rapid NMR imaging

Details Method and apparatus for rapid NMR imaging Method and apparatus for rapid NMR imaging

1986-06-24

1988-05-17

Levy, Stewart J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324312, G01R 3320

Patent

active

047453648

ABSTRACT:
A method and apparatus provides complete mensuration of two-dimensional Fourier components of a nuclear spin property thereby permitting undistorted image reconstruction. In spite of an unavoidable phase factor which originates from basic field inhomogeneities and drifts and from non-perfect electronics adjustment, an optimum sectional image is obtained from half measurements of the sampled resonance signals which are complex conjugate pairs. The image is obtained by determining the phase and then eliminating it from a spatial Fourier transform of the spin density distribution.

REFERENCES:
patent: 3824451 (1974-07-01), Freeman et al.
patent: 3999118 (1976-12-01), Hoult
patent: 4070611 (1978-01-01), Ernst
patent: 4611172 (1986-09-01), Takase
Nuclear Magnetic Resonance Imaging, C. L. Partain et al., pp. 453-471 1983.
Phys. in Medicine and Biology vol. 25, No. 4, Jul. 1980 pp. 75.+-.-756.

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