Multiple-coil adopting a quadrature detection method applied the

Details Multiple-coil adopting a quadrature detection method applied the Multiple-coil adopting a quadrature detection method applied the

1992-11-25

1995-10-10

O'Shea, Sandra L.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324322, G01R 3328

Patent

active

054573866

ABSTRACT:
A probe for an MRI apparatus in a vertical magnetic field system including: an array coil which is formed by arranging a plurality of unit coils, which can be driven independently of one another, in a direction perpendicularly intersecting a direction of a static magnetic field; and a compensating coil which forms a magnetic field in a direction perpendicularly intersecting both a direction of a magnetic field formed by the array coil and the direction of the magnetic field, a signal detected by the array coil and a signal detected by the compensating coil being composed so as to be in phase with each other, thereby to be outputted.

REFERENCES:
patent: 4623844 (1986-11-01), Macovski
patent: 4633179 (1986-12-01), Sugimoto
patent: 4890061 (1989-12-01), Den Boef
patent: 4899108 (1990-02-01), Fujita et al.
patent: 4945446 (1990-07-01), Kuroda et al.
patent: 4985678 (1991-01-01), Gangarosa
Publication of Translation of International Patent Application No. 1990/500, 175.
Magnetic Resonance in Medicine, vol. 16, pp. 192-225 (1990).
Journal of Magnetic Resonance, vol. 54, pp. 324-327 (1983).
8th SMRM "Quadrature Switchable Spine Array Cores, " p. 952, 1989.
10th SMRM, p 724, 1991.

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