METHOD AND APPARATUS FOR DECOUPLING QUADRATURE PHASED ARRAY COILS
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United States of America Patent
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Oct 28, 2003
Grant Date -
Nov 13, 2003
app pub date -
May 8, 2002
filing date -
May 8, 2002
priority date (Note) -
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Abstract
A method and apparatus are disclosed for combining the respective readout signals for a loop and butterfly coil pair of a quadrature phased array used for magnetic resonance imaging. The technique used to combine the signals introduces a 180 degree phase shift, or multiple thereof, to the loop coil signal, thereby allowing the loop coil signal to be decoupled from other loop coil signals by a low input impedance preamplifier in series with the signal.
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