Radio frequency coil switching

Details Radio frequency coil switching Radio frequency coil switching

1997-01-06

1999-02-09

Arana, Louis M.

Electricity: measuring and testing

Particle precession resonance

Spectrometer components

324318, G01V 300

Patent

active

058699660

ABSTRACT:
In Magnetic Resonance Imaging Apparatus, it is necessary to switch the radio frequency electric coils which are positioned around the patient in the imaging volume very rapidly. The present invention achieves such switching using switching devices which are sensitive to control signals other than electrical signals. This removes the need to pass additional electrical conductors, which could carry interfering signals, into the imaging volume and this reduces image degradation. In particular the switching devices may be photodiodes which function in response to optical signals carried by optical fibres.

REFERENCES:
patent: 5545999 (1996-08-01), Mueller et al.

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