Multiple loop coil with improved decoupling

Details Multiple loop coil with improved decoupling Multiple loop coil with improved decoupling

1992-05-18

1993-10-26

Arana, Louis

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

1286535, G01V 300

Patent

active

052569713

ABSTRACT:
A quadrature coil for receiving NMR signals in magnetic resonance imaging employs as few as two substantially coplanar overlapping loops having sensitivity along perpendicular lines in a region of sensitivity. Each loop is sensitive to a fluctuating uniform magnetic field but is decoupled by a decoupling network. A common ground point shared between the two loops allows the combination of the signals produced by the two loops with a hybrid combiner without the coupling of the loops through the signal's grounds. A third loop may be added to the two loops to produce a third signal to further improve the signal-to-noise ratio of the coil.

REFERENCES:
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patent: 4825162 (1989-04-01), Roemer et al.
patent: 4918388 (1990-04-01), Mehdizadeh et al.
patent: 4928064 (1990-05-01), Keren
patent: 4943775 (1990-07-01), Boskamp et al.
patent: 4973908 (1990-11-01), Bottomley et al.
patent: 5030915 (1991-07-01), Boskamp et al.

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