Moving gradient zeugmatography

Details Moving gradient zeugmatography Moving gradient zeugmatography

1987-03-27

1988-07-12

Tokar, Michael J.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324309, G01R 3320

Patent

active

RE0327123

ABSTRACT:
Nuclear magnetic resonance phenomena are employed to generate a two dimensional image of a thin planar slice through a body under investigation. The apparatus herein operates to determine the spin density distribution in a planar slab within the body which typically comprises a biological organism. Each pixel in the resulting image is distinguished by applying time-varying magnetic field gradients so that the frequency history of the spins in each pixel is uniquely distinguishable. Additionally, novel radio frequency excitation means assure selective excitation within the planar slab.

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patent: 4115730 (1978-09-01), Mansfield
patent: 4165479 (1979-08-01), Mansfield
Sutherland, R. J. and Hutchison, J. M. S., "Three-Dimensional NMR Imaging Using Selective Excitation," J. Phys. E: Sci. Instrum., vol. 11, 1978, pp. 79-83.
Lai, Ching-Ming, House, Waylon V., Jr., and Lauterbur, Paul, C., "Nuclear Magnetic Resonance Zeugmatography for Medical Imaging," Reference No. 1, Electro/78 Conference Record (1978), pp. 1-15.
Kumar, Anil, Welti, Dieter, and Ernst, Richard R., "NMR Fourier Zeugmatography," Journal of Magnetic Resonance, 18, (1975), pp. 69.83.

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