SYSTEM AND METHOD FOR DIRECT RADIO FREQUENCY PHASE CONTROL IN MAGNETIC RESONANCE IMAGING
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United States of America Patent
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Jun 11, 2015
app pub date -
Apr 16, 2013
filing date -
Apr 16, 2012
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Described here are systems and methods for improved magnetic resonance imaging (“MRI”} using a radio frequency (“RF”} system that establishes a Larmor frequency using a clock signal generated by the RF system to provide phase coherency and improved spectral quality among the RF pulses generated by the RF system. With this system, the conventionally relied-upon reference signal is no longer needed to maintain phase coherency. Instead, the system clock of the RF system is used to create the Larmor frequency used for pulse formation in the RF transmitter and for signal demodulation in the RF receiver.
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