RF shielding method, MRI apparatus, and...

Details RF shielding method, MRI apparatus, and... RF shielding method, MRI apparatus, and...

2006-10-11

2008-11-04

Shrivastav, Brij B (Department: 2831)

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

C324S318000

Reexamination Certificate

active

07446533

ABSTRACT:
In order to reduce the cost for isolation between a surface coil and a body coil installed on a magnet assembly side, an RF shield for a surface coil is disposed between a body coil installed on a magnet assembly side of an MRI apparatus and a surface coil body not installed on the magnet assembly side. The reception by the body coil of RF pulses transmitted from the surface coil body is suppressed by the RF shield for the surface coil. Since an induced voltage in the body coil drops to a great extent, a switch provided on the body coil side no longer requires a component resistant to high voltage and high current. Thus, the apparatus can be simplified and the cost can be reduced. As a result, the reliability of the apparatus is improved.

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