Gradient coil assembly for a magnetic resonance imaging apparatu

Details Gradient coil assembly for a magnetic resonance imaging apparatu Gradient coil assembly for a magnetic resonance imaging apparatu

1990-11-29

1992-11-24

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324322, G01R 3320

Patent

active

051666197

ABSTRACT:
A gradient coil assembly for a magnetic resonance imaging apparatus includes respective gradient coils for the x-gradient and y-gradient which are flat coils provided at the respective planar pole surfaces of the fundamental field magnet. The gradient coils each consist of a number of turns, each turn including a straight conductor element and a return element which proceeds as azimuthally relative to the edge of the coil. The assembly also includes correction coils formed by two identical conductor segments, each segment contain arcuate conductor groups which are provided for correcting the linearity of the gradients in the edge regions of the gradient coils.

REFERENCES:
patent: 4623864 (1986-11-01), Inoue et al.
patent: 4728895 (1988-03-01), Briguet et al.
patent: 4791370 (1988-12-01), MacKinnon
patent: 4845432 (1989-07-01), Overweg
patent: 4847985 (1989-07-01), Aubert
patent: 4992769 (1991-02-01), Oppelt
"Generalised Anderson Coils for Magnetic Resonance Imaging" Momo et al. J. Phys. E: Sci. Instrum. vol. 21, No. 6, (1988) pp. 565-568.
"Gradient Coil Design for a Microscope Imaging of Human Extremities in a One Meter Bore Magnet", Barlov et al., Society of Magnetic Resonance in Medicine, Seventh Annual Meeting and Exhibition (1988) p. 132.

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