RF coil providing reduced obstruction access to image volume in

Details RF coil providing reduced obstruction access to image volume in RF coil providing reduced obstruction access to image volume in

1993-03-01

1995-01-31

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324322, 1286535, G01V 300

Patent

active

053861914

ABSTRACT:
An RF coil sub-assembly for a transverse magnet MRI system includes substantially co-planar serially-connected turns mounted on a common substrate. Preferably, half of the turns are directed clockwise, while the other half are directed counter clockwise to produce a plurality of equal commonly directed currents along spaced apart parallel conductors. A low-loss expanded dielectric spacer is used to mount the RF coils within a pre-existing depression formed by the annular magnetic shims of a transverse magnet structure thus substantially eliminating any obstruction to the image volume for at least the RF transmit coils.

REFERENCES:
patent: 4682125 (1987-07-01), Harrison et al.
patent: 4829252 (1989-05-01), Kaufman
patent: 4839595 (1989-06-01), Boskamp
patent: 4968937 (1990-11-01), Akgun
patent: 5091708 (1992-02-01), Bezjak
Soc. of Magn. Res. in Medicine, 1988, The Book of Abstracts, vol. 2, Akgun et al: "A Novel Whole-Body Antenna for Transverse Magnet Based NMR System," p. 954.

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